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HomeMy WebLinkAboutCT 01-01; CALAVERA HILLS VILLAGE L2; INTERIM REPORT OF GEOTECH VILLAGE E;Ij I I ll I ll ll l! I l{ I C- JKEERIM REPCKT OF GBOTEXIINICAL INVESTIGflTION CAEAVE31A HEIOHS VILLfiGE H FTM AVENUE AND VICTCmA AVENUE CARLSBAD, CfiLlPUKNIA PREPARED FOR: Lyon (jomnunities, Incorporated 4330 La Jolla Village Drive, Suite 130 San Diego, Califomia 92122 PREPARED BY: Southern Cidifornia Soil & Testing, Inc. Post Office Box 20627 6280 Riverdale Street San Dieoo, Califomia 92120 Il lj lj I 1 I ll I I ll ll ll ll I ll l{ ll SOUTHERN CALIFORNIA SOIU AND TESTING. INC. S280 RIVERDALE ST. SAN OIEGG. CALIF. 92,20 • TELE2aO-«2, • P.O. BOX 2D627 SAN DIEGO. CALir. 92,20 6 , B CNTERPR.SE: ST. e s c o N o , o o. c * . , r. , z o » s • TELE , ^ e - a 5 . - June 21, 1990 Lyon Coninanities, Incorporated 4330 La Jolla Village Drive Suite 130 San Diego, Califomia 92122 ATTENTION: Mr. George Haviar SCS&T 9021055 Report No. 1 SUBJECTT: Gentlemen: Interim Report of Geoteclmical Investigation, Calavera Heights Village H, Elm Avenue and Victoria Avenue, Carlsbad, Califomia. In accordance with your request, we have conpleted an interim geotechnical investigation for the subject project. We are presenting herewith our findings and recatirendations. In general, we found the site suitable for the proposed developnent provided the reconnEndations presented in the attached report are followed. If you have any questions after reviewing the contents contained in the attached report, please do not hesitate to contact this office. This opportunity to be of professional service is sincerely appreciated. Respectfully submitted Daniel IL & TESTING, INC .er, R.C.E. #36037 DBA:JFH:KAR:inw cc: (2) Subndtted (4) Iftinsaker and Associates (1) SCS&T, Escondido SOUTHERN CALIFORNIA SOIL AND TESTING, INC I I ll ll I II ll ll I ll ll TWSLE CF CCNTENTS Introduction and Project Description 1 Project Scope ^ Findings Site Description General Geology and Subsurface Conditions 4 Geologic Setting and Soil I^escription 4 Santiago Formation (Ts) 4 Terrace Deposits (Qt) 4 AlluviunvColluvium (Qyal/Qcol) 5 Artificial Fill (Qaf) 5 Tectonic Setting 6 Geologic Hazards ^ Groundshaking ^ Slope Stability "7 (Groundwater 8 Conclusions and Recommendations 8 GsTvsral ^ Grading ^ Site Preparation 9 Select Grading 9 CXit/Fill Transition 10 Inported Fill 10 Berthing and Keying 10 Slope Construction 10 Surface Drainage 11 Subdrains H Earthwork H Slope Stability H (jeneral H Conputer Slope Stability Analysis 12 Shear Key 12 Foundations 13 General 13 Reinforcenent 13 Interior Concrete Slabs-on-Grade 13 Exterior Concrete Slabs-on-Grade 14 Special Lots 14 E3q>ansive Characteristics 14 Settlement Characteristics 15 Foundation Plan Review 15 (Srading Plan Review 15 Earth Retmning Walls 15 Passive Pressure 15 Active Pressure 15 Backfill 16 ll I ll ll TABLE OF CONTEMTS (Continued) Factor of Safety 16 Limitations 16 Review, Observation and Testing 16 Uniformity of Conditions 17 Change in Scope 17 Time Limitations 17 Professional Standard 18 Client' s Responsibility 18 Field Explorations 18 Laboratory Testing 19 MTftCHMENTS TM3LE Table I The Maximum Bedrock Accelerations, Page 7 FIGURE Figure 1 Site Vicinity Map, Follows Page 1 VLfOES I I I ll I Plates lA-lB-lC Site Plans I Plate ID Cross Section and IDetails Plate 2 Unified Soil Classification Chart I Plates 3-10 Boring Logs Plates 11-47 Trench Logs Plates 48-49 Boring Logs Performed by Geocon, Inc. • Plate 50 Grain Size Distribution Plate 51 Conpaction Test Results Expansion Test Results •I Plates 52-55 Direct Shear Sunmary ^ Plate 56 Canyon Subdrain Detail _ Plate 57 Slope Stability Calculations 11 Plate 58 Weakened Plane Joint Detail Plate 59 Retaining Wall Subdrain Detail APPENDICES A - Recomtnended Grading Specification and Special Provisions B - Slope Stability Analysis Il Ij ll I I il I I i ll ll I II I I ii ll SOUTHERN CALIFORNIA SOIL AND TESTING, INC. 62BD RIVERDALE ST. SAN DIEGD. CAUF. 92,20 • TELE 280-4321 • P.O. 8DX 20627 SAN DIEGD. CALIF. 92,20 67B ENTERPR.SE ST. ESCONDIDO. CAL.F. 92025 • TELE nUERIM REPORT QF GBOrBCHNICAL INVESTIGATION CAIAVERA HEIQirS VILLAGE H ELM AVENUE AND VICTORIA AVENUE CaRLiSBAD, CALIFORNIA lOTRDDUCTICN A^D PRDOBCT EmnUPTICN This report presents the results of our interim report of the geotechnical investigation for Calavera Heights, Village H, located at the intersection of Elm Avenue and Victoria Avenue, in the City of Carlsbad, Califomia. The site location is llustrated on the following Figure Number 1. It is our understanding that the proposed development will consist of a 13 lot residential subdivision with associated paved streets to be located at the southem portion of the site. The ranainder of the site will be left undisturbed with the exception of grading associated with the widening of Elm Avenue. The proposed lots will receive custom homes. It is anticipated that the structures will be one and/or two stories high and of wood frame construction. Shallow foundations and conventional slab-on-grade floor systems are proposed. Grading will consist of cuts and fills up to approximately 25 feet and 30 feet deep, respectively. Fill slopes up to approximately 80 feet and cut slopes up to approximately 30 feet high at a 2:1 (horizontal to vertical) are also anticipated. Retaining walls up to 12 feet in height are proposed. • j Tto assist with the preparation of this report, >e were provided with a I toitative grading plan prepared by Hunsaker and Associates dated March 5, SOUTHERN CALIFORNIA SOIL AND TESTING. INC. SOUTHIRN CALIFORNIA SOiL A TMTINQ.INC. CALAVERAS HEIGHTS VMJJVGE H BV: DBA/WDW JOB WUMBgW: 9021055 DATt: 6-21-90 FIGURE #1 SCS&T 9021055 June 21, 1990 Page 2 1990. In addition we reviewed our Slope Stability and Remedial Grading RecomtEndations, Elm Avenue Extension, Village I," dated November 8, 1983, our "Buttress Recommendations for Proposed Cut Slope, Calavera Hills, Village I," dated November 3, 1983 and our Supplementary Geotechnical Investigation, Calavera Hills Subdivision,' dated July 29, 1983. The site configuration, topography and approximate locations of the subsurface e^qjlorations are shown on Plates Number lA, IB and IC. PROJECT SCOPE 1} This interim report is based on the review of the aforementioned reports for the si±>ject subdivision. A site specific report will be prepared at a later ll date when further field investigation and analysis of laboratory data has I been completed. For the purpose of this report appropriate field |L investigation and laboratory test data '^s extracted from the previously l| nentioned reports. More specifically, the intent of this study was to: Ij a) {Describe the sxibsurface conditions to the depths influenced by the proposed construction. b) The laboratory testing performed in the referenced report was used to evaluate the pertinent engineering properties, including bearing capacities, expansive characteristics and settlement potential, of the anticipated materials which will influence the development of the proposed subject site. I I I c) Define the general geology at the site including possible geologic hazards which could have an effect on the site development. d) Develop soil engineering criteria for site grading and provide , . . 1. ...1 _j._J-J1.-i... _£ 1 fitl I reccnnendations regarding the stability of proposed cut and fill I slopes. Ij e) Address potential construction difficulties and provide reconnendations corxreming these problems. I| I I I ll I! I ll li l| I l| ll SCS&T 9021055 June 21, 1990 Page 3 f) Reconnend an appropriate foundation system for the type of structures anticipated and develop soil engineering design criteria for the recommended foundation design. FINDINGS SITE CESCRIPTICN The subject site is an irregular shaped parcel of land located within the Calavera Heights Subdivision in Carlsbad, Califomia. The site, designated as Village "H", covers approximately 65 acres and is primarily bounded on the north by imdeveloped land, on the west by residential property, on the east by Tamarack Avenue, undeveloped land and residential property and on the south by a sewer treatment plant and undeveloped land. Topographically, the southern portion of the site is comprised of a large, north-south trending canyon with eastem and westem facing, steep-sided slopes along the westem and eastem property boundaries, respectively. The northem three-fourths of the site is conprised of a large, northeastem facing hillside with the eastem property boundary being along the bottom of a large, northwestem-southeastem trending canyon. The slopes range up to approximately 160 feet in height. The natural slope inclinations are typically on the order of 3 to 1 (horizontal to vertical) or flatter. The inclination of the cut slopes, located on the southwestem portion of the site, appear to be approximately 2 to 1 (horizontal to vertical). Drainage is acconplished via sheetflow and the veil incised drainage svales tov«rd ths two aforenentioned large canyons. The southem and northem canyons drain in those respective directions. Vegetation consists of large eucalyptus trees, native chapaixal, shrubs and grasses. Portions of the site have existing improvements. On the southern and southeastem portions asphalt covered parking and storage areas exist. Elm Avenue and ths associated inprovements traverse the northem three-fourths of the site. In addition, it appears that previous grading activities have resiiLted in areas of cuts and fills on the site. SCS&T 9021055 June 21, 1990 Page 4 CTNERAL GBOLDGy AND SUBSURFACE CCMDITICNS (SXMXnC SETTING AND SOIL DESCRIPTION: The subject site is located near the boundary between the Coastal Plains and the Foothills Physiographic Provinces and is underlain by Tertiary-age sediments, Quatemary-age terrace deposits, alluvium/colluvium, associated residuimi and artificial fill. SANTIAGO FORMATION (Ts): The Tertiary materials of the Santiago Formation are the oldest materials encountered during the investigation for the referenced reports. The Santiago Formation consists of interbedded marine sediments which range from silty sandstone to clayey sandstone and clayey siltstone to silty claystone. The upper two to seven feet of these formational materials are typically fractured and highly weathered. A relatively thin (less than one foot and ccmtDnly _ less than one inch) layer of apparently remolded clay was encountered in I Boring Number B-l (Job Number 14112, dated October 20, 1983) and reported in the referenced report dated November 3, 1983. This layer has || relatively low strength parameters and will require special ' consideration as described in the engineering section of this report. In II general, t±e claystones encoimtered within this formation have been associated with slope stability problems and may require special grading consideration if deep and/or steep cut slopes are proposed in the Santiago Formation. I I I ll ll I l| I TERRACE DEPOSITS (Qt): An isolated area of Quatemary-age terrace deposits was observed (Trench Number TI-57 dated July 11, 1983). The terrace deposits overlie the Santiago Formation and consist of approxinately t^o feet of medium dense to dense, reddish brown gravelley sand and sandy coHale conglomerate. Other areas may be underlain by terrace deposits of varying thickness. It is anticipated that if other areas are encountered they wilJ. typically consist of the same types of soils and will be less than ten feet thick. i I I I: I I I ll ll 1 ll ll SCS&T 9021055 June 21, 1990 Page 5 ALLUVIUH/COLLUVIUM (Qyal/Qcol): Younger alluvial materials (Qyal) consisting of loose deposits of clay, silt and sand are present in the smaller drainage swales as veil as in the large drainage canyons. These deposits are anticipated to range in thickness from less than a foot to over ten feet. In addition, colluvial deposits (Qcol) are anticipated to exist as isolated areas on the lower and flatter slopes. These deposits consist of a few feet of loose sands, silts and clays derived frcm the Santiago Formation. Due to their ubiquitous occurrence, the alluvium/colluvium are not delineated on the geologic map except in the larger drainage canyons. These deposits will require remedial grading. ARTIFICIAL FTTJ. (Qaf): The subsurface explorations performed for the referenced reports were done prior to the existing iirprovsments on and adjacent to Village H. No fill soils were encountered in the referenced investigations, however previous grading activities appear to have resulted in cuts and fills on-site. The areas where artificial fills appear to exist on-site are shown on Plate Numbers IB and IC. The artificial fills on the southem portion of the site appear to be associated with the asphalt covered storage areas and associated inprovenents. These fills are anticipated to be engineered and conpacted fill soils. The fill slopes innediately adjacent to the length of Elm Avenue are associated with the construction of Elm Avenue. This conpacted fill was placed under the observation and testing of a geotechnical firm other than Southem Califomia Soil and Testing, Inc. and we do not have knowledge of the conditions of the fill soils associated with the construction of Elm Avenue. In addition, two areas on-site appear to be underlain by fill soils or have possibly undergone some type of grading activity. These two areas are innediately north and soutJi of Elm Avenue, in the vicinity of the boundaries between Villages J, G and H. The supposition that these areas have received previous grading activities and may be underlain by fill is based on a visual reconnaissance only. The approximate areas of these two areas of fill (Qaf?) are indicated on Plates Nunfcer IB and IC. If no documentation can 136 located pertaining to these areas of supposed fill, they should be considered unsuitable for developnent in their present condition. I I I t i I I II II II II li ll SCS&T 9021055 June 21, 1990 Page 6 TBCTCNIC SETTING: A few small, apparently inactive faults have been mapped previously within the vicinity of the site and evidence of faulting was noted in our exploratory Trench Nimiber T5 of the referenced report dated Novenfcer 8, 1983. This small, apparently inactive fault displaces Tertiary- age materials but not Quatemary-age materials. It is possible that future grading operations at the site may reveal more of these faults. Due to their status of activity and geometry, these small faults should be only of minor consequence to the project. It should also be noted that several prominent fractures and joints are present within the vicinity of the site. These are probably related, at least in part, to the stirong tectonic forces that dominate the Southern Califomia region. These features are usually near-'.'ertical and strike in both a general northwesterly direction (subparallel to the regional structural trend) and in a general northeasterly direction (subperpendicular to the regional structural trend). All cut slopes should be inspected by a qualified geologist to assess the presence of adverse jointing conditions in the final slopes. In addition, it should be recognized t±at much of Southem Califomia, is characterized by major, active fault zones that could possibly affect the subject site. The nearest of the-se is the Elsinore Fault Zone, located approxinately 20 miles to the northeast. It should also be noted that the possible off-shore extension of the Rose Canyon Fault Zone is located approxinately eight miles west of the site. The Rose Canyon Fault Zone conprises a series of northwest trending faults that could possibly be classified as active based on recent geologic studies. It is anticipated that the Rose Clanyon Fault Zone will be classified as active in the near future. Recent seismic events along a small portion of the Rose Canyon Fault Zone have generated earthquakes of 4.0 or less magnitude. Other active fault zones in t±e region that could poss.lbly affect the site include t±.e Coronado Banks and San Clenente Fault Zones to the west, the Agua Bianca and San Miguel Fault Zones to the south, and the Elsinore and San Jacinto Fault Zones to the northeast. I I I I JCS&T 9021055 June 21, 1990 Page 7 I .GBODDGIC HAZARDS: The site is located in an area which is relatively free of ;x)tential geologic hazards. Hazards such as tsunamis, seiches and liquefaction, should be considered negligible or nonexistent. IsOUNDSHAKING: I One of the vcost likely geologic hazards to affect the site is groundshaking as a result of movement along one of the major, active '[fault zones nentioned above. The maximum bedrock accelerations that would —be attributed to a maximum probable earthquake occurring along the nearest •portion of selected fault zones that could affect the site are sunmarized in the following Table I. I TJPHF, I I I ault Zone Distance Maximum Probable Earthauake Bedrock Design Arceleration Acceleration I se Canyon Elsinore ^oronado Banks San Jacinto 8 miles 20 miles 24 miles 43 miles 6.5 magnitude 7.3 nagnitude 7.0 nagnitude 7.8 nagnitude 0.36 g 0.25 g 0.18 g 0.14 g 0.23 g 0.17 g 0.12 g 0.10 g Earthquakes on the Rose Canyon Fault Zone are expected to be relatively inor. Major seismic events are likely to be the result of movement along the Coronado Banks, San Jacinto, or Elsinore Fault Zones. I I I Experience has shown that structures that are constructed in accordance with jthe Uniform Building Code are fairly resistant to seismic related hazards. It is, therefore, our opinion that structural damage is unlikely if such Duildings are designed and constructed in accordance with the minimum standards of the most recent edition of the Uniform Building Code. I STRBIUTr: Another potential geologic hazard which may affect the site is the possibility of slope stability problems associated with low Strength parameters of the claystones in the Santiago Formation. Remedial I I I SCS&T 9021055 June 21, 1990 Page 8 neasures may be required depending upon the proposed cut slope heights and inclinations. Slope stability will be further discussed in the engineering portion of this report. GROUNDWATER: Groundwater is anticipated to exist, at least seasonally, witJiin the two large drainage canyons. This condition will not affect the proposed development. While no groundwater was encountered during the geotechnical investigation for the referenced reports, it should be recognized that minor groundwater seepage problems may occur after developnent of a site even v^re none vere present before development. These are usually minor phenomena and are often the result of an alteration of the pemeability characteristics of the soil, an alteration in drainage pattems and an increase in irrigation water. All cut slopes should be olDserved during grading for indication of water seepage. CONCLUSICNS AND REOCMMENDATIONS OBNERAL In general, no geotechnical conditions vere encountered v*iich vould preclude the development of the site as tentatively planned, provided the reconnendations presented herein are followed. Geotechnical conditions vMch will affect the proposed developnent include loose surficial soils, ej^jansive soils and a remolded clay layer within the area of the proposed Scenic Vista construction. Existing loose surficial deposits such as topsoils, subsoils, unconpacted fill, younger alluvium, colluvium, fractured and/or weathered formational naterials encountered are considered unsuitable for the support of settlement sensitive improvenents, and will require removal and/or replacement as conpacted fill. Expansive soils are present vd.thin the subject area. i-Jhere possible, select grading is reconnended to keep nondetrinentally expansive soils within four feet from finish pad grade. In areas v^re this is not feasible, special foundation consideration will be necessary, or inporting of nondetrinentally expansive I | , SCS&T 9021055 June 21, 1990 Page 9 soil may be necessary. A remolded clay layer was encountered in Boring 11 Number 1 (original Job Number 14112). This condition will require the construction of a shear key as described in the slope stability section of |{ this report. I I An additional consideration is the presence of fill soils at the southcentral portion of the site. This fill was placed after our original investigation and appears to be associated with the construction of the existing portion of Elm Avenue and storage areas. It is assumed t±at the existing fill was placed under the testing and observation services of a lj qualified soils engineer. This should be confirmed with appropriate docimentation. Existing fill not placed under controlled conditions will have to be removed and replaced as conpacted fill. I ll I I I 1 I I l| i GRADING SITE PREPARATIGN: Site preparation should begin with the renoval of any existing vegetation and deleterious matter from proposed inprovenent areas. Removal of trees should include their root system. Any existing loose surficial deposits such as topsoils, subsoils, unconpacted fills, younger alluvium, colluvium, weathered and/or fractured materials in areas to receive settlement sensitive inprovenents should be removed to firm natural ground. The average extent of these materials will be up to approximately three to seven feet, however, deeper removal should be anticipated in canyon areas. Firm natural ground is defined as soil having an in-place density of at least 90 percent. Soils e;qx3sed in the bottom of excavations should be scarified to a depth of 12 inches, moisture conditioned and reconpacted to at least 90 percent as determined in accordance with ASTM D 1557-78, Method A or C. The mininum horizontal limits of removal should include at leeist five feet beyond the perineter of the structures, and all areas to receive fill and/or settlement-sensitive inprovenents. •SKI J^Ti' GRADinS: E;q)ansive soils should not be alloved within four feet from finish pad grade. In addition, expansive soils should not be placed within a I ll I I I I 1 I I ll I I I I I ll I SCS&T 9021055 June 21, 1990 Page 10 distance from the face of fill slopes equal to ten feet or half the slope height, vMchever is more. Select material should consist of granular soil with an expansion index of less than 50. It is reconnended that select soils have relatively low pemeability characteristics. In areas undercut for select grading purposes, the bottom of the excavation should be sloped at a minimum of three percent away from the center of the structure. Minimum lateral extent of select grading should be five feet away from the perimeter of settlement-sensitive improvements. CJI/FUli "mfllEITIGN: It is anticipated that a transition line betveen cut and fill soils may run through some of the proposed building pads. Due to the different settlement characteristics of cut and fill soils, construction of a structure partially on cut and partially on fill is not reconnended. Based on this, we reconnend that the cut portion of the building pads be undercut to a depth of at least three feet below finish grade, and the naterials so excavated replaced as uniformly conpacted fill. The minimum horizontal limits of these recomtendations should extend at least five feet outside of the proposed inprovements. IMPORTED FHi: All fill soil iitported to the site should be granular and have an expansion index of less that 50. Further, import fill should be free of rock and lunps of soil larger than six inches in diameter emd should be at least 40 percent finer than 1/4-inch. Any soil to be imported should be approved by a representative of this office prior to importing. EBCHIN5 AM) KEYING: Fill slopes up to 80 feet in height are proposed over existing hillsides. It is anticipated that the combination of topsoil, colluvium and weaUiered fomational soils in these areas maybe as deep as seven feet. This condition will require deeper than usual laenching. It is fvurther reccnnended that all keys be at least 20 feet wide. SLOPE CLNyJMJLTlGN: T!he face of all fill slopes should be conpacted by backrolling with a sheepsfoot compactor at vertical intervals of not greater t±an four feet and should be track walked when conpleted. Select grading SCS&T 9021055 June 21, 1990 Page 11 I 1 I I ll I I ll ll I •l I should be perforned to limit expansive soils within ten feet from face of fill slope or one half the slope height, whichever is greater. All cut slopes should be observed by our engineering geologist to ascertain that unforeseen adverse conditions are not encountered. Should any adverse conditions be found, mitigating measures could be required. SURFACE DRAINACT: It is reconnended that all surface drainage be directed away from the structures and the top of slopes. Ponding of water should not be alloved adjacent to the foundations. SUBDRAINS: A subdrain should be installed in canyon areas to receive fill in excess of ten feet in depth. A subdrain detail is provided in Plate Nunter 56. The actual subdrain locations will be provided by this office after final grading plans are available. EARIHWOPK: All earthwork and grading contemplated for site preparation should be acconplished in accordance with the attached Reconnended Grading Specifications and Special Provisions. All special site preparation reconnendations presented in the sections above will supersede those in the Standard Reconnended Grading Specifications. All embankments, structural fill and fill should be conpacted to at least 90% relative conpaction at or slightly over optimum moisture content. Utility trench backfill within five feet of the proposed structures and beneath asphalt pavenents should be conpacted to minimum of 90% of its maximum dry density. The upper twelve inches of subgrade beneath paved areas should be conpacted to 95% of its maximum dry density. This compaction should be obtained by the paving contractor just prior to placing the aggregate base naterial and should not be part of the mass grading requiratents. The naximum dry density of each soil type should be determined in accordance with ASTM Method D 1557-78, Method A or C. SLOPE STUEILm GENERAL: Proposed cut and fill slopes should be constructed at a 2:1 (horizontal to vertical) or flatter inclination. It is estimated that cut i I I I I I I I I l{ ll SCS&T 9021055 June 21, 1990 Page 12 and fill slopes will extend to a maximum height of about 50 feet and 80 feet, respectively. It is our opinion that said slopes will possess an adequate factor of safety with respect to deep seated rotational failure and surficial failure (see Plate Number 57). The engineering geologist should observe all cut slopes during grading to ascertain that no unforeseen adverse conditions are encountered. Fill slopes should be constructed following the recamendations presented in the grading section of this report. CCMPUTER SLOPE STABILITr ANALYSIS: Conputer slope stability analysis were perfomed in three typical cross-sections. Cross-section A-A'as analyzed as part of our "Slope Stability and Remedial Grading Reconnendations" report dated Noventoer 7, 1983. The conputer analysis utilized incorporated the sinplified Bishop Method of slope stability analysis and yielded a minimum factor-of-safety of 1.9. The cross-section is presented as Plate Number l-D. The proposed grading will be essentially the sane. Cross-sections B-B' and C-C' vere analyzed for this report and reflect the proposed grading plan. Slope Stability analysis for these sections were performed using the STABR/G circular failure surface conputer program developed by Geosoft (Orange, Califomia). This program performs a search, of botJi the ordinary nethod of slices and the modified Bishop's net:hod, of the lovest factor-of- safety. All calculated factors-of-safety were equal or greater than 1.6 (se Appendix B). The soil properties vere determined from examining laboratory- test results, trench and boring logs, and the sit geology. Several direct shear tests were performed on samples from each section. In order to sijrplify our analyses the lovest shear strength values vere assumed for each section. This was possible due to the fact that no significant adverse zone or remolded layers were encountered. SHEAR KET: A remolded clay seam was encountered in Boring Number 1 (original Job Number 14112) at the proposed alignment of Scenic Vista. It is reconnended that a shear key be constructed in said area. A shear key detail is present^ on the attached Plate Nunfcer i-D. The lateral extent of the shear key will be determined after additional field investigation is perforned to' further define the remolded clay seam limits. A subdrain is recomtended at the heel of the shear key (see Plate Nunfcer l-D). I ll I I I I I ll ll SCS&T 9021055 June 21, 1990 Page 13 FOUNDATIONS GENERAL: If the lots are capped with nondetrimentally expansive soils, conventional shallow foundations may be utilized for the support of the proposed structures. The footings should have a minimum depth of 12 inches and 18 inches below lowest adjacent finish pad grade for one and two story structures, respectively. A minimum width of 12 inches and 18 inches is reconnended for continuous and isolated footings, respectively. A bearing capacity of.2000 psf may be assumed for said footings. This bearing capacity may be increased by one-third when considering wind and/or seismic forces. Footings located adjacent to or within slopes should be extended to a depth such that a minimum distance of seven feet and ten feet exist between the footing and the face of manufactured slopes or natural slopes, respectively. Retaining walls in similar conditions should be individually revieved by this office. If it is found to be unfeasible to cap the lots with nondetrinentally expansive soils as reconnended, special foundation and slab design will be necessary. This generally consists of deepened and more heavily reinforced footings, thicker, more heavily reinforced slabs. Reconnendations for expansive soil conditions will be provided after site grading v*ien the expansion index and depth of the prevailing foundation soils are known. REINPCHOMENr: Both exterior and interior continuous footings should be reinforced with at least one No. 5 bar positioned near the bottom of the footing and one No. 5 bar positioned near the top of the footing. This reinforcenent is based on soil characteristics and is not intended to be in lieu of reinforcenent necessary to satisfy stiructural considerations. If expansive soils exist within four feet of finish grade, additional reinforcing will be necessary. INTERIOR CONCRETE ON-GRADE SLABS: If the pads are capped with nondetrinentally e:q)ansive soils, concrete on-grade slabs should have a thickness of four inches and be reinforced with at least Nb. 3 reinforcing bars placed at 24 inches on center each way. Slab reinforcement should be Il I I I I i I I i I I I I I I ll ll SCS&T 9021055 June 21, 1990 Page 14 placed near the middle of the slab. A four-inch-thick layer of clean, coarse sand or crushed rock should be placed under the slab. This layer should consist of naterial having 100 percent passing the one-half-inch screen; no more than ten percent passing sieve #100 and no more than five percent passing sieve #200. v^ere moisture-sensitive floor coverings are planned, the sand or rock should be overlain by a visqueen raoisture barrier and a two-inch-thick layer of sand or siltry sand should be provided above the visqueen to allow proper concrete curing. EXTEBIOR SEJfflS-ON-GRADE: For nonexpansive soil conditions, exterior slabs should have a minimum thickness of four inches. WalJ^s or slabs five feet in width should be reinforced with 6"x6"-W1.4xW1.4 (6"x6"-10/10) welded wire mesh and provided with veakened plane joints. Any slabs betveen five and ten feet should be provided with longitudinal veakened plane joints at the center lines. Slabs exceeding ten feet in width should be provided with a weakened plane joint located three feet inside the exterior perimeter as indicated on attached Plate Number 58. Both traverse and longitudinal weakened plane joints should be constructed as detailed in Plate Nunfcer 59. Exterior slabs adjacent to doors and garage openings should be connected to the footings by dowels consisting of No. 3 reinforcing bars placed at 24-inch intervals extending 18 inches into the footing and the slab. SPECIAL LOTS: Special lots are defined as lots underlain by fill with differential thickness in excess of ten feet. The following increased foundation reconnendations should be utilized for said lots. Footings should be reinforced with tvro No. 4 bars positioned near the bottom of the footing and two No. 4 bars positioned near the top of the footing. Concrete on grade slabs should be reinforced wit± at least No. 3 reinforcing. bars placed at 18 inches on center each v«y. Lots with fill differentials in excess of thirty feet should be evaluated on an individual basis. EXPANSIVE CTRRACIEEIISTICS: Clayey deposits vere encountered within our subsurface explorations, and its presence wit±in four feet of finish pad grade will require special site prejjaration and/or foundation consideration. I I I ll I I i I I ll ii ll SCS&T 9021055 June 21, 1990 Page 15 The aforenentioned reconnEndations assume a nondetrimentally expansive condition based on a select grading operation. Revised recomnendations will be provided after grading if this is not the case. SETTEJEMOn' (HRRACIERISTICS: The anticipated total and/or differential settlenents for the proposed structures nay be considered to be within tolerable limits provided the recomtendations presented in this report are followed. It should be recognized that minor hairline cracks on concrete due to shrinJcage of construction materials or redistribution of stresses are normal and nay be anticipated, FOUNDATION PLAN REVIEW: Since the lots will be developed individually to receive custom hones it is reconnended that the foimdation plans be revieved by this office. If needed, additional site specific reconnendations will be provided at that tine. (3RADING PLAN REVIEW: The grading plans should be submitted to this office for review to ascertain that the assumptions made in preparing this report regarding the site developnent are still valid. EAR33I FEmiNING WAU^ PASSIVE PRESSURE: The passive pressure for the prevailing soil conditions nay be considered to be 450 poimds i^er square foot per foot of depth up to a naximum of 2000 psf. This pressure may be increased one-third for seismic loading. Tins coefficient of friction for concrete to soil may be assimed to be 0.35 for the resistance to lateral movement. When confcining frictional and passive resistance, the fomer should be reduced by one-third. The upper 12 inches of exterior retaining wall footings should not be included in passive pressure calculations when landscaping abuts the bottom of the vall. ACTIVE PRESSURE: Tins active soil ]Dressure for the design of unrestrained earth retaining structures with level backfills may be assumed to be equivalent to the pressure of a flu.id veighing 35 pounds per cubic foot. For I I ll ll SCS&T 9021055 June 21, 1990 Page 16 2:1 (horizontal to vertical) sloping backfills, 14 pcf should be added to the preceding values. These pressures do not consider any surcharge. If any are anticipated, this office shouid be contacted for the necessary increase in soil pressure. This value assumes a drained backfill condition. Waterproofing details shouid be provided by the project architect. A subdrain detail is provided on the attached Plate Nunfcer 59. BACKFILL: All backfill soils should be compacted to at least 90% relative conpaction. Expansive or clayey soils should not be used for backfill material. The wall should not be backfilled until the masonry has reached an adequate strength. FACTOR OF SAFETY: The above values, with the exception of the allowable soil bearing pressure, do not include a factor of safety. Appropriate factors of safety should be incorporated into the design to prevent the walls from overtuming eind sliding. LIMITAnCNS REVIEW, QBSERVKTIGN AND TESTIS The reconnendations presented in this report are contingent upon our review of final plans and specifications. Such plans and specifications should be made available to the geotechnical engineer and engineering geologist so that thsy may review and verify their conpliance with this report and with Chapter 70 of the Uniform Building Code. I I k I I I I ^' It is reconnended that Southem Califomia Soil & Testing, Inc. be retained • , to provide continuous soil engineering services during the earthwork ' operations. This is to verify compliance with the design concepts, specifications or reconnendations and to allow design changes in the event that subsurface conditions differ from those anticipated prior to start of construction. SCS&T 9021055 June 21, 1990 Page 17 UNIFORUnY OF (XNDITIONS The reconnendations and opinions expressed in this report reflect our best estimate of the project requirements based on an evaluation of the subsurface soil conditions encountered at the subsurface exploration locations and on the assunption that the soil conditions do not deviate appreciably from those encountered. It should be recognized that the performance of the foundations and/or cut and fill slopes may be influenced by undisclosed or unforeseen variations in the soil conditions that may occur in the intermediate and unexplored areas. Any unusual conditions not covered in this report that nay be encountered during site development should be brought to tihe attention of the geotechnical engineer so that he may nake modifications if necessary. CHANGE IN SCOPE This office should be advised of any changes in the project scope or proposed site grading so that we may determine if the recommendations contained herein are appropriate. This should be verified in writing or modified by a written addendum. TIME LIMITATIONS The findings of this report are valid as of this date. Changes in the condition of a property can, however, occur with the passage of time, whetiier they be due to natural processes or the work of nan on this or adjacent properties. In addition, changes in the Standards-of-Practice and/or Government Codes nay occur. Due to such changes, the findings of this report may be invalidated wholly or in part by changes beyond our control. Tiierefore, this report should not be relied upon after a period of two years without a review by us verifying the suitability of the conclusions and reconnendations. I I li ll I I I I I I SCS&T 9021055 June 21, 1990 Page 18 PRDFESSIONRL STANDARD In the perfomance of our professional services, we comply with that ievel of care and skill ordinarily exercised by members of our profession currently practicing under similar conditions and in the same locality. The client recognizes that subsurface conditions may vary from those encountered at the locations v^iere our borings, trenches, surveys, and explorations are made, and that our data, interpretations, and reconnendations are based solely on the infomation obtained by us. We will be responsible for those data, interpretations, and reconnendations, but shall not be responsible for the interpretations by others of the infomation developed. Our services consist of professional consultation and observation only, and no warranty of any kind whatsoever, express or implied, is made or intended in connection with the work performed or to be perfomed by us, or by our proposal for consulting or other services, or by our fumishing of oral or written reports or findings. CLIENT'S RESPCNSIBHiITy It is the responsibility of Lyon Conmunities Incorporated, or their representatives to ensure that the .information and reconnendations contained herein are brought to the attention of the structural engineer and architect for the project and incorporated into the project's plans and specifications. It is further their responsibility to take the necessary neasures to insure that the contractor and his subcontractors carry out such reconnendations during construction. FIELD EXPLORATIONS Subsurface ejiploration wit±in the subject site were extracted from our referenced r^rts. Their locations are indicated on the attiached Plate Nunfcers 1-B and 1-C. These explorations consisted of four borings drilled _ utilizing a bucket drill rig perfomed on October 20 and 25, 1983. The I I boring logs are presented on the following Plate Nunfcers 3 through 10. Il ll I i I I I li ll I l| ll I I l| ll SCS&T 9021055 June 21, 1990 Page 19 Thirty-seven trench excavations were also performed betveen December 21, 1982, and October 27, 1983, by the means of a backhoe. The trench logs are presented on the following Plate Nunfcers 11 through 47. The field vork was conducted under the observation of our engineering geology personnel. Plates Nunfcer 48 and 49 contain a boring log perfomed by Geocon, Incorporated, November 5, 1976. In addition, Plate 10 contains three geologic cross-sections. Cross-section A-A' from our report dated November 7, 1983 is presented as Plate Nunfcer 2, since the proposed grading remains unchanged. Cross-sections B-B' and C-C' reflect the proposed grading. The soils are described in accordance with the Unified Soils Classification System as illustrated on the attached simplified chart on Plate 2. In addition, a verbal textural description, the wet color, the apparent moisture and the density or consistency are provided. The density of granular soils is given as either very loose, loose, medium dense, dense or very dense. The consistency of silts or clays is given as either very soft, soft, nedium stiff, stiff, very stiff, or hard. LABORKTCacr TESTING Laboratory tests were perfonned in accordance with the generally accepted Anerican Society for Ttesting and Materials (ASTM) test methods or suggested procedures. A brief description of the tests performed is presented below: a) CLASSIFICATICN: Field classifications vere verified in the laboratory by visual examination. The final soil classifications are in accordance with the Unified Soil Classification System. b) MDISIURE-DErerrr: In-place moisture contents and dry densities were determined for representative soil sanples. This information was an aid to classification and permitted recognition of variations in naterial consistency with depth. Ths dry unit weight is determined in pounds per cubic foot, and the in-place moisture content is detennined as a percentage of the soil's dry weight. The results are sunrarized in the trench and boring logs. SCS&T 9021055 c) June 21, 1990 Page 20 I I ) l| I I li l| I li I d) f) GRAIN SIZE DISTRIBOTION: The grain size distribution was determined for representative samples of the native soils in accordance with ASTM D422. The results of these tests are presented on Plate Number 50. COMPACTION TEST: The maximum dry density and optimum moisture content of typical soils were detennined in the laboratory in accordance with ASTM Standard Test D-1557-78, Method A. The results of these tests are presented on the attached Plate Nunfcer 51. EXPANSION TEST: The expansive potential of clayey soils was determined in accordance with the following test procedure and the results of these tests appear on Plate Nunfcer 51. Allow the trimmed, undisturbed or remolded sample to air dry to a constiant moisture content, at a temperature of 100 degrees F. Place the dried sanple in the consolidometer and allow to conpress under a load of 150 psf. Allow noisture to contact the sanple and neasure its expansion from an air dried to saturated condition. DIRBCT SHEAR TESTS: Direct shear tests were performed to determine the failure envelope based on yield shear strength. The shear box was designed to accommodate a sample having a dianeter of 2.375 inches or 2.50 inches and a height of 1.0 inch. Sanples were tested at different vertical loads and a saturated noisture content. The shear stress was applied at a constant rate of strain of approximately 0.05 inches per minute. The average shear strength values for granitic and metavolcanic rock are presented on attached Plates Nunfcer 52 through 55. INSERT DRAWINGS HERE I I ll I I I I ll ll I I ll ll ll I SUBSURFACE EXPLORATION LEGEND UNIFIED SOIL CLASSIFICATION CHART SOIL DESCRIPT: ON SROUP SYMBOL •^P::AL fJAMES I. :aARSE GRAINED. -ore man naif of material is laroer tnan No. 200 sieve s 1 ze. GRAVELS CLEAN GRAVELS GW •Jell graoec gravels, gravel- More tnan naif of sano mixtures, little or no coarse fraction is fines. larger tnan No. 4 GP Poorly graaed gravels, gravel sieve size but sand mixtures, little or no smaller tnan 3". fines. GRAVELS WITH FINES GM Silty gravels, poorly graded (Appreciable amount gravel-sand-silt mixtures. of fines) GC Clayey gravels, poorly graded gravel-sand, clay mixtures. SANDS CLEAN SANOS SW Well graaefl sand, gravelly More tnan nal f of sanas, little or no fines. coarse fraction is SP Pooriy graces sanas. gravelly smaller tnan NO. 4 sanas, '.iitle or no fines. sieve size. SANDS WITH FINES SM Silty sanas, poorly graded (Appreciable amount sand ana silty mixtures. of fines) SC Clayey sands, poorly graded sand ana day mixtures. II. FINE GRAINED, more than naif of material is smaller tnan No. 200 sieve size. SILTS ANO CLAYS ML Inorganic silts and very fine sands, rock flour, sandy silt or clayey-silt-sand mixtures with slight plas- ticity. Liquid Limit CL Inorganic clays of low to less tnan 50 medium plasticity, gravelly clays, sandy clays, silty clays, lean clays. OL Organic silts and organic Sllty ciays or low plasticity. SILTS ANO CLAYS MH Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts. Liquid Limit CH Inorganic clays of high greater tnan 50 plasticity, fat clays. OH Organic clays of medium to high plasticity. HIGHLY ORGANIC SOILS PT Peat and other highly organic soils. iiS - Water level at time of excavation or as indicated Undisturbed, driven ring sample or tube sample CK — Undisturbed chunk sample BG — Bulk sample SP — Standard penetration sample SOUTHBRN CALIPORNIA SOIL A TBSTINQ.INC. CALAVERA HEIGHTS-VILLAGE "H" IY: KAR DATE: 6-04-90 JOB NUMBER: 9021055 Plate No. 2 Jl I i HI CL. a. 2 < CO < -I u o < BORING NUMBER 1 Report No. 14144 OESCR IPTION NT RE z o z UJ ITV UJ 3 UJ o z UJ (/) cc K e CO z < M < CO UJ 0. — a. CO o a. o a. z < < COl OR ° o t- z < < E >- K <0 Ol — Z « Q. = CO z oc a a: *- z C/) UJ — t- O z S o (J UJ c z o o < a. S O o CL/ CH DARK BROWN, SANDY CLAY (TOPSOIL) MOIST STIFF SC GREENISH TU YtLLOW BftOWN CLAYEY SAND (WEATHERED SANDSTONE) CL GREENISH BROWN, SANDY CLAY (CLAYSTONES AND SILT- STONES) NO MEASURABLE ATTITUDES MOIST HARD SM YELLOW BROWN, SILTY SAND (SANDSTONE) MOIST VERY DENSE VV SOUTHERN CALIFORNIA SUBSURFACE EXPLORATION LOG SOIL ATESTING, INC. LOGGED BY: CRB DATE LOGGED: 10-25-83 JOB NUMBER: 9021055 Plate No. 3 ll I I If n H: li- il: i II; I 20. ll: li: li J I I Ul a. a < (0 z o -I u OJ o) CO BORING NUMBER 2 Report No. 14144 OESCR IPTION h- UJ Z K Ul 3 cc H-< CO 0. — 0. O < z ^ ^ ^ UJ r; CO « « z < _ UJ a. tn o a. z < O CJ ec O z o H z < < cc I- 1- CO UJ — z to z _ UJ — a u a >• ~ oc a 3 I- »- z CO UJ — H- O 2 3 o u UJ > z o u < a. 2 O u CL/ CH DARK BROWN, SANDY CLAY (TOPSOIL) STIFF SC GREENISH TO YELLOW BROWN CLAYEY SAND fWFATHFRFH SANDSTONE) MOIST DENSE CL GREENISH BROWN, SANDY CLAY (CLAYSTONES AND SILT- STONES) MOIST HARD (SUBDUED REMOLDED CLAY SEAM AT 16' HORIZONTAL) DENSE SM LIGHT GRAY, SILTY SAND MOIST (FINE SANDSTONE) SOUTHERN CALIFORNIA SUBSURFACE EXPLORATION LOG SOIL ATESTING,INC. LOGGED BY: CRB OATE LOGGED: 10-25-83 SOIL ATESTING,INC. JOB NUMBER: 9021055 Plate No. 4 UJ a. a. < CO z o < (J o ^ to tn tn < -i o BORING NUMBER l Repost No. 14112 DESCR IPTION t- UJ Z cc UJ 3 oc »- < CO a. — Q. O < 2 > UJ E < a. a. < o o UJ H 7) tn z ° S I- z < < CO CO UJ s UJ _ Q u a >- ~ cc c UJ tf^ e ~ 3 K Z CO UJ 5 z 2 O o UJ Z > O t- I- < o UJ a. = 2 O o 1 - SM BROWN SILTY SAND (TOPSOIL) HUMID MEDIUM DENSE I. I l|' II SC/ CL RED BROWN SANDY CLAY/ CLAYEY SAND (WEATHERED SANTIAGO FORMATION) M0IS1 MEDIUM DENSE/ STIFF 9- 10- I: li: ll I}' ll US CL GREEN BROWN SILTY CLAY (SANTIAGO FORMATION) MOIST VERY STIF: HTRD" SM BUFF & YELLOW BROWN SILTY SAND MOIST DENSE TO VERYl DENSE CL RED BROWN & GREEN BROWN SILTY SAND MOIST HARD SM BUFF SILTY SAND M0IS1 DENSE TO VERYl DENSE CL GREEN BROWN SILTY CLAY MOIST HARD SM BUFF SILTY SAND MOIST DENSE ID VERY OENSE SOUTHERN CALIFORNIA SOIL &TESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB JOB NUMBER: 9021055 DATE LOGGED: 10-20-83 Plate No. 5 J I I ! > I i I < I to < _i (J o (fl < BORING NUMBER Report NO. 14112 DESCR IPTION = tc UJ 3 E I- < Cfl G. — a O < 2 RE sTi: <t JJ a. on a 0. 2 < CO o { z I o I — t >- i < E t- UJ ^_ LU LU UJ s O 2 Z UJ »- 2 C o > < UJ E 2 O o < a. 2 O o 16- 17- I 1 If i <13 - 26 I I I 1 K CK CL US US BAG SM GREEN BROWN REMOLDED CLAY | WITH TINY ROOTS, INCH THICf RED BROWN & GREE.N BROWN SILTY CLAY MOIST 10 HARD BUFF WITH GREEN TINT SILTY SAND MOIST DENSE TO VERY DENSE yv SOUTHERN CALIFORNIA SUBSURFACE EXPLORATION LOG ^^n^ SOIL &TESTING.INC. LOGGED BY: Qf^g DATE LOGGED:-]0.20-83 ^^n^ SOIL &TESTING.INC. JOB NUMBER: 9021055 Plate NO. 6 a. II UJ PE o > 1-< UJ .J _ a. o u. 2 in (O < <n Cfl CLA BORING NUMBER Report No. 14112 DESCR IPTION Z E UJ 3 E K < CO 0. — Q. O < 2 UJ y- tfl CO 2 o o 2 S e ^ t- CO UJ — 2 E CO 2 UJ a > Q E ~ 3- H- Z CO UJ — t- O 2 S O o UJ Z > o < o -I < UJ a. K 2 O o - us 35- 36- - US - US ^8- SM BUFF WITH GREEN TINT SILTY SAND GREE.N BROWN SANDY~CL7^ GRADING INTO CLAYEY SAND BUFF WITH GREEN TINT SILTY SAND MOIST mn- MOIST DENSE TO VERY DENSE DENSE DENSE TO VERY DENSE 24 21 22 BORING ENDED AT 48' SOUTHERN CALIFORNIA SOIL ATESTING, INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB DATE LOGGED:10-20-83 JOB NUMBER: 9021055 Plate No. 7 IL li IP If: 111- I 2- ll 3- I; i lh If: II' 12- 1,1 Ul a. > 0. 2 < CO -I u CO OT CO < o BORING NUMBER 2 Report No. 14112 DESCRIPTION t- UJ 2 E UJ 3 E h- < Cfl E — E O < 2 UJ z o I- < < o OC t- _; t- <fl — UJ 2 UJ E Cfl UJ E CO 2 Ul w a u a LL; E 3 O 2 2 O U LU > 2 O t-u < E 2 o u SM/ SC BROWN TO RED BROWN CLAYEY SILTY SAND (FILL) HUMID MEDIUM DENSE SM/ SC BROWN TO RED BROWN (TOPSOIL) HUMID MEDIUM DENSE US SM CL BUFF CLAYEY SAND (WEATH- ERED SANTIAGO FORMATION) MOIST MEDIUM DENSE BUFF SILTY SAND (SANTIAGO FORMATION) MOIST DENSE GREEN BROWN SILTY CLAY, CALICHE NEAR CONTACT MOIST HARD SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB DATE LOGGED: 10-20-83 JOB NUMBER: 9021055 Plate No. 8 Mi a. > a. 2 < in 15-j 15 z o < _l o « CO cn < -J o BORING NUMBER Report No. 14112 DESCR IPTION NT Ul E 1 N rENC ITV UJ 3 UJ rENC tfl s t-E CO z < (fl < CO Ul CL — E Cfl a E O E z < 2 < CO OR z o < < o Eh-.; I- Crt — lu - ^ _ CO « UJ S It' E O E *— — CO z UJ a >- a E 3 o 2 Z Ul K 2 O U LU E 2 O < E 2 O o I 17- 18- 19- 20- 21 22r 23- 24 27- 28- US BAG US CL SC CL GREEN BROWN SILTY CLAY MOIST HARD GREEN BROWN CLAYEY SAND GREEN BROWN SILTY CLAY MOIST MOIST DENSE HARD SOUTHERN CALIFORNIA SOIL &TESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB DATE LOGGED: 10-20-82 JOB NUMBER: 9021055 Plate No.9 I IU E a. 2 < Cfl 30- 2 O t-< _l u o ± tn tn tn < BORING NUMBER 2 Report No. 14112 OESCR IPTION K UJ 2 E UJ 3 E h- < CO E — E O < 2 2 UJ E < E E < > UJ 1-•J) tn 2 O O Cfl 2 3 < < E H- H CO UJ — 2 « E CO z UJ — O u a >- — E a UJ s 3 co z UJ o z 2 O o UJ z > o < o -1 < Ul E K 2 O U 31- 32- 134- 36- 37- 39- US 40- 41' US CL SC GREEN BROWN SILTY SANDY CLAY GREEN BROWN CLAYEY SAND SM/ SC SM CL LIGHT GREEN BROWN CLAYEY SILTY SAND BUFF SILTY SAND GREEN BROWN SILTY SANDY CLAY GREEN BROWN CLAYEY SAND BORING ENDED AT 49' MOIST HARD MOIST MOIST MOIST MOIST MOIST DENSE TO VERY DENSE DENSE TO VERY DENSE DENSE TO VERY DENSE HARD DENSE TO VERYl DENSE 10 SOUTHERN CALIFORNIA SOIL ATESTING, INC. SUBSURFACE EXPLORATION LOG LOGGED BY: JOB NUMBER: 9021055 DATE LOGGED:TO.20-83 Plate No.lO li I I I, I TRENCH NO. 1 REPORT NO. 14144 $20 300 280 '260 YELLOW BROWN FINE TO MEDIUM SANDSTONE YELLOW GRAY FINE SANDSTONE W/MUDSTONE CLASTS 0 20 40 60 80 100 VIEW LOOKING NORTHWEST CALAVERA HEIGHTS-VILLAGE "H" BY: SMS DATE: 11-8-83 JOB NUMBER: 9021055 Plate No.11 SOUTHERN CALIFORNIA SOIL A TESTING, INC. 2 4 * I TRENCH NUMBER Report No. 14144 r- lu Z E OJ 3 E »_ < CO t O < 2 : i = UJ UJ CO 5 ? 5 E E tn O o o CO z _ UJ — X c UJ X 3 t- co 5 2 Z UJ z o u z Ui o K o < < E UJ 2 « 5 CL I GRAYISH BROWN, SANDY CLAY (TOPSOIL - COLLUVIUM) WET SOFT TO MEDIUM STIFF CL REDDISH BROWN, SAND CLAY (CLAYSTONE) WITH SLICKENSIDES N60°E dip 0-12° WET STIFF SC GREENISH GRAY, SANDY CLAY (CLAYSTONES) MOIS" HARD I It. SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: HJ JOB NUMBER: 9021055 OATE LOGGED: XO.5-83 Plate No. 12 •J i E 2 >o < TRENCH NUMBER Report No. 14144 • ESCF5IPTIC N — LU 2 E UJ 3 = t- * CO E — E O < 2 Z Ui E < E E < >• UJ (fl cn ijy z o o E o (fl z _ Ui — ° 1 >- E a tu fl E cn Ul 5 o u z Ui o »- o < < -I a Ui 2 « 5 o iCL/ CH CL DARK BROWN, SANDY CLAY (TOPSOIL) YELLOW BROWN, SANDY CLAY (FRACTURED CLAYSTONES) WET WET SOFT STIFF CL BROWN, SANDY CLAY (CLAYSTONES) MOIST STIFF SOUTHERN CALIFORNIA SOIL A TESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: HJ OATE LOGGED: 10-5-83 JOB NUMBER: 9021055 Plate No. 13 I: I: in l: ll' i; I CL DARK BROWN SANDY CLAY (TOPSOIL-COLLUVIUM) BROWN, SANDY CLAY (CLAYSTONES AND SILTSTONES) MOIST MOIS" STIFF HARD •1/4" to li'2" SUBDUED SEAM - DI 'S RANGE 3" TO NW FR)M REMQLDE ) 2^ JO^ CLAY SE TO SM TAN, SILTY SAND (SANDSTONE) MOIST DENSE SUBSURFACE EXPLORATION LOG LOGGED BY: Q^Q DATE LOGGED: 10-27-83 JOB NUMBCR: 9021055 Plate No. 14 SOUTHERN CALIFORNIA SOIL ATESTING.INC. I E 2 < CO 2 _ < u CO < sc/ CL SM TRENCH NUMBER • Report No. 14144 OESCF=ilP'''ION oc K < CO t 5 < 2 Z Ui E < E E < > CJ cn CO z o o Cfl z Ui a E o CO z _ Ui — ° 1 >- E a E (A W i ^ a o u z Ui o > — — H < < a. 2 O u LU E STIFF DARK BROWN, SANDY CLAY (TOPSOIL AND COLLUVIUM) LIGHT GREENISH BROWN SANDY CLAY + CLAYEY SAND (ABUNDENT FRACTURES.- DIPS RANGE FROM 0^ TO 30° TO SE) ^01 ST HARD BUFF, , SAND / SILTY / FAULT STRIKES N30' (6" OFFSET) SOUTHERN CALIFORNIA SOIL A TESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB JOB NUMBER: 9021055 DATE LOGGED: 10-27-83 Plate No. 15 TRENCH NUMBER TI-80 Report No. 14112 GREEN BROWN SILTY CLAY (WEATHERED SANTIAFOR FORMATION) MOIS" VERY STIFF SM BUFF TO YELLOW BROWN SILTY SAND, APPARENT DIP 5° TO EAST - SOUTHEAST (SANTIAGO FORMATION) MOIST DENSE CL RED BROWN AND GREEN BROWN SILTY CLAY MOIST HARD CK VERY THIN REMOLDED SEAM AT CK BAG 9 FEET, APPARENT DIP 4° JO 6° TO EAST - SOUTHEAST ll TRENCH ENDED AT 11' yqrV SOUTHERN CAUFORNIA SOIL A TESTING. INC. CRB 10-27-83 9021055 Plate No. 16 I I 1 I ll I I I t 1 I I II II II 10 11 12 Class TRENCH NO:. TH-3 Report No. 14112 DescriDCion y A A I I SM/ SC CL SM Red-brown. Moist, Medium Dense, Clayev Silty Sand (Topsoil) Gray-brown, Moist, Stiff, Sandy Clay (Weathered Santiago Formation) Light Green-brown, Moist, Dense to Very Dense, Silty Sand (Santiago Formation) 115.8 14.8 Trench Ended at 12 Feet SOUTHERN CALIFORNIA BOIL & TESTING , INC. •AN OIMO, CALIfiOnNIA ••IIO CALAVERA HEIGHTS-VILLAGE "H" 1 BY CRB JOB NO. 9021055 OATE 12-21-82 Plate No. 17 I I I I! I I I II I I TRENCH NO. :H-4 Report No. 14112 4 _ y I 10 -/ Class SM/ SC CL SM CL Description Red-Brown, Moist, Medium Dense, Clayey Silty Sand (Topsoil) Gray-brown, Moist, Stiff, Sandy Clay (Weathered Santiago Formation) Santiago Formation Buff white. Moist, Dense to very Dense, Silty sand (Santiago Formation) Green-brown, Moist, Hard, Sandy Clay (Claystone) Trench Ended at 11 Feet 116.1 14.8 115.8 15.6 SOUTHERN CALIFORNIA SOIL & TESTING, INC. •AN OIBBO, CALIPORNIA ••IBO CALAVERA HEIGHTS-VILLAGE "H" BY I CRB JOB NO. 9021055 DATE 12-21-82 Plate No. 18 Il I I I I i I I ll I i i I II I I Class TRENCH NO. 11-5 Report No. 14112 Description 1 - 1 10 11 12 i I CL SC SM CL/ ML SM Brown, Moist, Medium Dense, Silty Sand (Topsoil) Green-brown, Moist, Stiff, Sandy Clay (Weathered Santiago Formation) Yellow-brown, Moist, Dense, Clayey Siltv Sand Green-brown, Moist, Hard Sandy Silty Clay (Santiago Formation) Buff White, Moist, Dense to Very Dense, Silty Sand Trench Ended at 12 Feet 110.2 9.3 127.6 11.4 124.2 5.0 |/V SOUTHERN CALIPORNIA SLS BOIL & TESTING , INC. ^^^y^ •••O MIVBMOAUB BTMBBT BAN OIBOO, OALiraRNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" BY CRB DATE ,^ „„ 12-15-82 JOB NO. 9021055 Plate No. 19 TRENCH NO. TI-6 Report No. 14112 Class 7 < •/. SM/ 2^ I I I ll ll I 5 . 6 . I II ll ll s I 10 11 12 I SC ML/ SM Description Brown, Moist, Medium Dense, Clayey Silty Sand (Topsoil) Gray-green Brown, Moist, Stiff, Sandy Clay (Weathered Santiago Formation) Brown, Moist, Medium Dense, Clayey Sand Buff white. Moist, Hard, Moist, Interbedded Silts & Silty Sands (Santiago Formation) Trench Ended at 12 Feet 115.6 13.9 K SOUTHERN CALIFORNIA iLN SOIL & TESTING, INC. 1 BAN OIBOO, CALIFORNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" 1 CRB 12-21-82 1 1 9021055 Plate No. 20 | TRENCH NO. TI-7 Report No. 14112 Class Description I l| l| I I l| ll ll ll 12 5 . I 10 _ 11 - CL SC/ CL SM/ SC SM Gray-brown, Moist, Stiff, Sandy Clay (Topsoil) Brown, Moist, Medium Dense, Sandy Clay (Weathered Santiago Formation) Yellow-brown, Moist, Medium Dense to Dense, Clayey Silty Sand Buff white, Moist, Dense to very Dense, Silty Sand (Santiago Formation) Trench Ended at 12 Feet 114.5 9.5 V SOUTHERN CALIPORNIA iCX SOIL & TESTING, INC. 1 BAN OIBOO, CALIFORNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" 1 ^ CRB 12-21-82 1 JOB NO. 9021055 Plate No. 21 Class TRENCH NO. TI-8 Report No. 14112 Description / k I 10 11 12 CL SM/ SC SM Gray-brown, Moist, Stiff, Sandy Clay (Topsoil) Yellow-brown, Moist, Medium Dense to Dense, Clayey Silty Sand (Weathered Santiago Formation) Buff white, Moist, Dense to very Dense, Silty Sand (Santiago Formation) Trench Ended at 12 Feet M 120.9 6.3 K SOUTHERN CALIPORNIA !QX SOIL & TESTING, INC. \^ BAN OIBOO, CALIFORNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" ^ CRB 12-21-82 JOB NO. 9021055 Plate No. 22 Class TRENCH NO. TI-8 Report No. 14112 Description I 1] ll I 12 ll ll It ll / / A 6 . I 8 . 9 . 10 _ 11 - CL SM/ SC SM Gray-brown, Moist, Stiff, Sandy Clay (Topsoil) Yellow-brown, Moist, Medium Dense to Dense, Clayey Silty Sand (Weathered Santiago Formation) Buff white. Moist, Dense to very Dense, Silty Sand (Santiago Formation) Trench Ended at 12 Feet 120.9 6.3 1 SOUTHERN CALIPORNIA jTX SOIL & TESTING , INC. BAN OIBOO, CALIFORNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" ^ CRB 12-21-82 JOB NO. 9021055 Plate No. 23 TRENCH NO. TI-9 Report No. 14112 I I I I! II 12 II II I I ll A AA 6 8 - 9 - 10 - II - 'V '.A •v. CL SM/ ei CL SM Gray-brown, Hoist, Stiff, Sandy Clay (Topsoil) Yellow-brown, Moist, Medium Dense to Dense, Clayey Silty Sand (Weathered Santiago Formation) Green-brown, Moist, Hard, Sandy Clay (Santiago Formation) Buff white. Moist, Dense to very Dense, Silty Sand 117.4 3.9 Trench Ended at 12 Feet [V SOUTHERN CALIPORNIA tTX SOIL & TESTING , INC. Y^'yr BBBO RIVBROALB BTRBBT SAN OIBOO, CALIFORNIA BBIBO CALAVERA HEIGHTS-VILLAGE "H" BY CRB DATE 12-21-82 1 JOB NO. 9021055 Plate No. 24 I I • fi ll UJ E > E 2 < Cfl z o < O O Cfl CO Cfl < -J o TRENCH NUMBER TI-54 Report No. 14112 ELEVATION DESCRIPTION r- lu Z E 0= )- < V) a. -E O < 2 z Ui s < E E < Ui CO (n Cfl z o CJ z Ui a E o (fl z _ IU — >• E O Ui ^ E CO Ui — t_- o 2 Z o u z Ui o > - — H o E UJ 5 5 o 2 J !: I: I ll- ll: r I: Ij I I lil ^4) DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF GREEN BROWN SANDY CLAY/ CLAYEY SAND MOIST MEDIUM DENSE CK SM BUFF WITH GREEN TINT SILTY SAND (SANTIAGO FORMATION) MOIST DENSE TRENCH ENDED AT 9' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-11-83 JOB NUMBER: gQ2io55 Platp Nn 25 J I i I UJ E E 2 < Cfl z O < o i '•I Cfl Cfl < TRENCH NUMBER TI-55 Report No. 14112 ELEVATION DESCRIPTION I- UJ Z E ^ = 0= I-< tn E — E O < 2 z Ul e < E E < Ui cn z 0) Ui « Q O o u (fl z _ u — ° 3 >- E O Ui _ E (A U — w o 2 Z o (J Z o t-u < E 2 o u CL; DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF GREEN BROWN SANDY CLAY/ CLAYEY SAND MOIST MEDIUM DENSE SM BUFF WITH GREEN TINT SILTY SAND (SANTIAGO FORMATION) MOIST DENSE CL GREEN BROWN SILTY CLAY MOIST HARD TRENCH ENDED AT 10' SUBSURFACE EXPLORATION LOG LOGGED BY: CRR DATE LOGGED: JOB NUMBER: 9021055 Plate No- 26 SOUTHERN CALIFORNIA SOIL ATESTING,INC. LU E > E 2 < CO z O < d -o t « CO in <. -i o TRENCH NUMBERTI- Report No. 14112 ELEVATION 56 DESCRIPTION H UJ Z E OC H < CO E — E O < 2 Z UJ E < E E < UJ CO z UJ o (0 (0 z o u E o (A z _ Ui — ° 1 > E Q E o 2 z o (J z Ui o t- o -< E - s DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF I I I ll- ll- CK I I li •3 ll sc SM YELLOW BROWN CLAYEY SAND MOIST BUFF TO LIGHT BROWN SILTY SAND (SANTIAGO FORMATION) MOIST MEDIUM DENSE DENSE TRENCH ENDED AT 9' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: JOB NUMBER: gQ21055 Plate No. 27 UJ E > E 2 < CO z O o CO TRENCH NUMBER TI-57 Report No. 14112 ELEVATION DESCRIPTION Z E E = oc H < </) t o < 2 t- Z Ui c < E E < Ui tn t- z CO Ui E o (0 z _ Ui — >• E o Ui c 3 t- (0 5 2 Z UJ I-z o (J Ui > Ul E Z o <J < E 2 O (J CL DARK GRAY & DARK BROWN SILTY CLAY MOIST STIFF J _ I li li GM RED BROWN SILTY SANDY GRAVEL (TERRACE DEPOSITS) MOIST DENSE TO VERY DENSE CK ML LIGHT GRAY SANDY SILT (SANTIAGO FORMATION) MOIST HARD ll Ij I li TRENCH ENDED AT 7' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED:, 7-1.1-83 JOB NUMBER: gQ21055 PlatPNo. 28 i i I t ; 2. I I I: ll- II- I: I: 11 ll- 12 ll- ll: lr UJ E >- I- E 2 < cn z o < o CO Cfl < -J u TRENCH NUMBER TI-58 Report No. 14112 ELEVATION DESCRIPTION I- Ul Z E E = oc (- < w E — E O < 2 Ul E < E E < Ui CO CA 2^ E o (0 z _ UJ - > E Q Ui _ E (A Ui O 2 Z O CJ Ul E Z o U o u DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF CL GREEN BROWN SILTY CLAY (SANTIAGO FORMATION) MOIST HARD BAG TRENCH ENDED AT 12' SUBSURFACE EXPLORATION LOG LOGGED BY: ^j^g DATE LOGGED: 7-1 ;UR.^ JOB NUMBER: 9021055 Plate No. 29 SOUTHERN CALIFORNIA SOIL ATESTING.INC. J I i Cl I I 2-• E >- E 2 < cn z o < o Cfl (fl < -I o TRENCH NUMBER TI-59 Report No. 14112 ELEVATION DESCRIPTION I- Ul Z E oc H < CA t 5 < 2 I-z Ui E < E E < Ui (A CA (A Z o CJ Ui a E o > (A >- E O u E Ui ^ E <A Ui i ^ s o u Ul s Z o u < E 2 o u HH DARK GRAY SILTY CLAY MOIST STIFF CL GREEN BROWN SILTY CLAY WITH CALICHE & SILKENSIDES (SANTIAGO FORMATION) MOIST VERY STIFF I I I I I I II 11 II li SM& ML INTERBEDED LIGHT GRAY & LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST DENSE CK BAG TRENCH ENDED AT 10' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: JOB NUMBER: 5021055 Plate No. 30 Il I I UJ E > E 2 < CO z o < CO CO <l _J <J TRENCH NUMBER TI Report No. 14112 ELEVATION 60 DESCRIPTION UJ Z E E = oc (- < CA t 5 < 2 z Ui E < E E I? Ui CO z UJ a CA CA Z o CJ E o CA Z _ Ui «- > E O Ul ^ E (A UJ i ^ u z Ul o t- o < < -> E E * CJ CL DARK BROWN SILTY CLAY (TOPSOIL) MOIST STIFF I l[ l| I I ll ll I lj l| I SC SM YELLOW BROWN CLAYEY SAND MOIST MEDIUM DENSE BUFF SILTY SAND (SANTIAGO FORMATION) MOIST DENSE CK TRENCH ENDED AT 9' SUBSURFACE EXPLORATION LOG LOGGED BY: j,^g DATE LOGGED: 7-1n.R^ JOB NUMBER: 9021055 Plate No. 31 SOUTHERN CALIFORNIA SOIL ATESTING,INC. J ll I c_ ' li li i{ li I li E E 2 < cn z o < (A < TRENCH NUMBER TI-61 Report No. 14112 ELEVATION DESCRIPTION t- Ul Z E OC I- < (A E — E O < 2 c < E E < Ui CA (A UJ O o u CO z _ Ui — > ~ E a Ul E 3 H (A 5 2 Z Ui t-z o o z Ui o > - E 2 o u CL DARK BROWN SILTY CLAY (TOPSOIL) MOIST STIFF SM BAG BUFF SILTY SAND (SANTIAGO FORMATION) MOIST DENSE TRENCH ENDED AT 7' SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-l;l-fi."? JOB NUMBER: 9021055 - Plate No. 32 SOUTHERN CALIFORNIA SOIL ATESTING,INC. Ji lj it L^ I I: IH t n If UJ E >- Ul -t E 2 < tn z o < o t tn in in < TRENCH NUMBER TI-62 Report No. 14112 ELEVATION DESCRIPTION I- UJ Z E oc H < CA ^ o < 2 Z Ui E < E E < it Ul CA CA (A Z o o Ui Q s o (- (A Z _ Ul — > E Q Ui E (0 Ui i ^ u z UJ o > ? I- o < < E UJ 2 = o u CH DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF CL GREEN BROWN SILTY CLAY (SANTIAGO FORMATION) MOIST VERY STIFF HARD Ih If It TRENCH ENDED AT 12' SUBSURFACE EXPLORATION LOG LOGGED BY: Q^g DATE LOGGED: ^_.,^._g3 JOB NUMBER: 9021055 Plate No. 33 SOUTHERN CALIFORNIA SOIL ATESTING.INC. .1 UJ E >- E 2 < CO o CO z O < TRENCH NUMBERTI-63 Report No. 14112 ELEVATION DESCRIPTION Ui Z E E = OC K < CO E — E O < 2 Z Ui E < E E 1? Ul CO I- * CO CO z o CJ Ui o e o Ui — > E O Ui ^ (A O 2 Z Ui O u z Ul o > ? H o < < E Ul E o u CH DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF CL GREEN BROWN & YELLOW SILT (SANTIAGO FORMATION) MOIST STIFF ML LIGHT GRAY SANDY SILT (SANTIAGO FORMATION) MOIST VERY STIFF HARD TRENCH ENDED AT 9' SOUTHERN CALIFORNIA SOIL ATEST1NG,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7_^^_Q3 JOB NUMBER: 9021055 Plate No. 34 UJ E >- E 2 < CO 2 o < o CO CO Cfl < _l o TRENCH NUMBER TI-64 Report No. 14112 ELEVATION DESCRIPTION H Ul Z E E = OC I- < CA E — E O < 2 (- Z Ui s < E E < Ui CO t- z CO UJ O o u CA z _ Ui — > E O Ul ^ E ^ Z (A Ui s o o Ui o > H I- o < < E Ul 5 = 5 o I CL DARK BROWN SILTY (TOPSOIL) CLAY MOIST STIFF I I I I: ii 1. ^^L GREEN BROWN SANDY CLAY/ CLAYEY SAND MOIST MEDIUM DENSE SM BUFF WITH GREEN TINT SILTY SAND (SANTIAGO FORMATION) MOIST DENSE TRENCH ENDED AT 9' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-11.R?? JOB NUMBER: 9021055 Plate No. 35 I I f I il 2 . ll J. I. u li li I UJ E > E 2 < CO z O < TRENCH NUMBER TH-65 Report No. 14112 ELEVATION DESCRIPTION Ui E 3 I- Z UJ E < CA E — E O < 2 Z Ui E < E E < i? UJ CA t- Z CA UJ ^ a a o CA Ui > E a UJ ^ E CA Ul 5 O CJ z Ui o t- o •* < -J E CL DARK BROWN SILTY SAND (TOPSOIL) MOIST STIFF SC YELLOW BROWN & GREEN BROWN CLAYEY SAND MOIST MEDIUM SM CK BUFF TO LIGHT YELLOW BROWN SILTY SAND (SANTIAGO FORMATION) MOIST DENSE TRENCH ENDED AT 8* I I I li SUBSURFACE EXPLORATION LOG LOGGED BY: ci^g DATE LOGGED: 7_^^,_g3 JOB NUMBER: 9021055 Plate No. 36 SOUTHERN CALIFORNIA SOIL A TESTING,INC. UJ E > E 2 < Cfl 2 O < o CO Cfl CO < o TRENCH NUMBER IH-66 Report No. 14112 ELEVATION DESCRIPTION f- Ul Z E OC I- < CO t 5 < 2 z Ui c < a. E Ui CO CO 5 O o u (A z _ Ui >- ° 3 >• E O Ui ^ E CO Ui O Ui > Ul E Z o u < E 2 O CJ CL; i 2 - I TT DARY GRAY SILTY CLAY (TOPSOIL) GREEN BROWN CLAYEY SAND MOIST STIFF MOIST MEDIUM DENSE SM I I I I I' BUFF SILTY SAND (SANTIAGO FORMATION) MOIST DENSE BAG TRENCH ENDED AT 10' 1 II II; It SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-1T-83 JOB NUMBER: 9021055 Plate No. 37 SOUTHERN CALIFORNIA SOIL ATESTING,INC. Jl. Ij i u li: I: I li i a. > LU _l E 2 < CO z O < cn < TRENCH NUMBER TH-67 Report No. 14112 ELEVATION DESCRIPTION H Ul Z E E = oc H < CO E — E O < 2 z Ui c < E E < 1? Ui CO z Ui o CO CO z o u E o CO z _ Ul — >- E O Ui ^5 E (A UJ O 2 Z o CJ UJ > t-< UJ E z o u < E 2 o CJ H DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF SC YELLOW BROWN CLAYEY SAND MOIST MEDIUM DENSE CK I I li li IH SM BUFF SILTY SAND (SANTIAGO FORMATION) MOIST DENSE TRENCH ENDED AT 9' SUBSURFACE EXPLORATION LOG LOGGED BY: (,^g DATE LOGGED: 7-nvfi3 JOB NUMBER: 9021065 Plate No. 38 SOUTHERN CALIFORNIA SOIL ATESTING,INC. Jl. Il i I I ? - \ E >• E 2 < cn z o < TRENCH NUMBERTH-68 Report No. 14112 ELEVATION DESCRIPTION I- Ul Z E ff = oc H < CA S: 5 < 2 Z UJ E < E E < UJ CA Z Ui a CA E O CA Z _ Ui — ° 1 >- E a Ui _ E I ^ CA Ui 1 ^ 2 o CJ z UJ o t- o < < E LJU E o u CL DARK GRAY SILTY CLAY (TOPSOIL) MOIST STIFF i I I ll 11 HL YELLOW BROWN SANDY CLAY/ CLAYEY SAND (WEATHERED OLDER ALLUVIUM) MOIST MEDIUM DENSE SC BAG YELLOW BROWN CLAYEY SAND (OLDER ALLUVIUM) MOIST MEDIUM DENSE ML 6L GRAY CLAYEY SANDY SILT (SANTIAGO FORMATION) MOIST VERY STIFF HARD TRENCH ENDED AT 10' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: CRB DATE LOGGED:, ,^ 7-1.1-83 JOB NUMBER: 9021055 Plate No. 39 Jl. I •: I I 2 , !: I I I I Ij- I: 1 o UJ E > E 2 < CO z o < -I y o t (A W CO < TRENCH NUMBER TI-69 Report No. 14112 ELEVATION DESCRIPTION UJ Z E ff = oc H < CA E — E O < 2 Z Ui K < E E < Ui CA I- Z (0 Ui o CO z o o E o CO z _ Ui — ° 3 >• E Q Ui E 3 CO o 2 z Ui H Z o o z o u < E 2 o u SM BROWN SILTY SAND (TOPSOIL) MOIST LOOSE TO MEDIUM DENSE H^ BROWN CLAYEY SAND/SANDY CLAY MOIST MEDIUM DENSE CL GREENISH BROWN SILTY CLAY MOIST STIFF CK CK 11 I 12 I 12 I I Id CL& ML INTERBEDED GREEN BROWN SILTY CLAY & SANDY SILT (SANTIAGO FORMATION) MOIST HARD/ DENSE SM& Hv INTERBEDED LIGHT GREEN BROWN SILTY SAND & SANDY CLAYEY SILT MOIST DENSE/ HARD 121.9 14.7 TRENCH ENDED AT 12' SUBSURFACE EXPLORATION LOG LOGGED BY: CRB DATE LOGGED: 7.1fl-R-? JOB NUMBER: 9021055 Plate No. 40 SOUTHERN CALIFORNIA SOIL ATESTING.INC. to Ul E > Ui a. 2 < (A r* h • [2. [3- 4- < U TRENCH NUMBER TI-70 Report No. 14112 ELEVATION DESCRIPTION H Ul Z E ff = oc H < CA ^ o < 2 > NT ON ITY Ui Ui CO E 1-z < CA Ui & CO 0 AP NO OR CJ CO z _ Ui <- ° 3 > E O Ui *5 E CO Ui i ^ s o u Ul o I- o < < -I E Ui 2 o CJ CL BROWN SILTY CLAY (TOPSOIL) MOIST STIFF CL GREEN BROWN SILTY CLAY MOIST STIFF i |9J B2 CL GREEN BROWN SILTY CLAY WITH SLICKENSIDES (SANTIAGO FORMATION) MOIST HARD INTERBEDED LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST MOIST DENSE/ HARD CL& ML INTERBEDED GREEN BROWN SILTY CLAY & SANDY SILT MOIST HARD SM& ML INTERBEDED LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST DENSE/ HARD TRENCH ENDED AT 12' SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-IR-R:^ JOB NUMBER: 9021055 PlatP No. 41 SOUTHERN CALIFORNIA SOIL ATESTING,INC. w E > *- Ui .J fr 2 (0 z o < o t CO (A < TRENCH NUMBER TI-71 Report No. 14112 ELEVATION DESCRIPTION I- UJ Z c ff = oc h- < CO t o < 2 z Ui c < E E < UJ CO t- z CO Ui O o (J CO z _ Ui > E Q Ui 2^ c = z H Z CO w i ^ s O u UJ o I- o < < -I E ff ^ CJ CL BROWN SILTY CLAY (TOPSOIL) MOIST STIFF SM BUFF TO LIGHT YELLOW BROWN SILTY SAND (SANTIAGO FORMATION) MOIST MEDIUM DENSE DENSE Hi GREEN BROWN SILTY CLAY/ CLAYEY SILT MOIST HARD SM& ML INTERBEDED LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST DENSE/ HARD CL GREEN BROWN & RED BROWN SILTY SAND MOIST HARD SM& INTERBEDED LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST DENSE TO HARD TRENCH ENDED AT 11' SOUTHERN CALIFORNIA SOIL ATESTING,INC. SUBSURFACE EXPLORATION LOG LOGGED BY: j,pg DATE LOGGED: 7.1R-R? JOB NUMBER: 9021055 PlatP Nn 42 IL i: 2 _ I UJ E > E 2 < cn z o < u Cfl (fl < _l CJ TRENCH NUMBERTI-72 Report No. 14112 ELEVATION DESCRIPTION H Ul Z E ff = oc (- < CO t 5 t 2 Ui K < E E < ii UJ CO CO CO z o o UJ Q E o CO z _ Ui — ° 3 > E a Ui E 3 (0 O 2 Z Ui K z o CJ z o u E 2 O o I I ll ll SM BROWN SILTY SAND (TOPSOIL) CL BROWN SILTY CLAY MOIST MEDIUM DENSE MOIST STIFF CL YELLOW GREEN SILTY CLAY (WEATHERED TERRACE DEPOSITS) MOIST STIFF CK SM& ML INTERBEDED LIGHT GREEN BROWN & BUFF WITH GREEN TINT SANDY SILT & SILTY SAND (SANTIAGO FORMATION) MOIST DENSE/ HARD I: li: 'll- ll' Ir TRENCH ENDED AT 11 SUBSURFACE EXPLORATION LOG LOGGED BY: CRR DATE LOGGED: 7-1 R-R:^ JOB NUMBER: 9021055 Plate N(L 43 SOUTHERN CALIFORNIA SOIL ATESTING,INC. z ,1- tE |uj !0 ,0. E >- E 2 < Cfl 2 O < o o CO TRENCH NUMBER TI-73 Report No. 14112 ELEVATION DESCRIPTION I- Ul Z E ff = oc K < CO E — E O < 2 Ui E < E E < ii Ui tn CO CO z o CJ UJ o E o H CO z _ Ui «- > E O Ui ^ E CO Ui 1 ^ 2 o o z Ui o > — < Ul E < E 2 o CJ CL 1 - 2 . BROWN SILTY CLAY (TOPSOIL) MOIST STIFF Hi GREEN BROWN SANDY CLAY/ CLAYEY SAND MOIST MEDIUM DENSE/ HARD INTERBEDED LIGHT GREEN BROWN & BUFF WITH GREEN TINT SILTY SAND & SANDY SILT (SANTIAGO FORMATION) CK 3 - MOIST DENSE/ HARD TRENCH ENDED AT 11 SUBSURFACE EXPLORATION LOG LOGGED BY: DATE LOGGED: 7-1R-R^ JOB NUMBER: 9021055 Plate No. 44 SOUTHERN CALIFORNIA SOIL ATESTING,INC. E E 2 < CO TRENCH NUMBER TH-74 Report No. 14112 ELEVATION DESCRIPTION r- UJ Z E ff = OC H < CA E — E O < 2 - " t z z t UJ UJ (fl = « = < f2 Ui E E < CA " O o (J CA z _ Ul — ° 3 >• E a Ui E 3 I- CA O 2 Z Ui H Z o o Ui > z o E 2 O u CL BROWN SILTY CLAY (TOPSOIL) MOIST STIFF SC YELLOW BROWN CLAYEY SAND MOIST MEDIUM DENSE SM& ML INTERBEDED BUFF WITH GREEN TINT SILTY SAND & SANDY SILT (SANTIAGO FORMATION) MOIST DENSE/ HARD CK i: TRENCH ENDED AT 12' SUBSURFACE EXPLORATION LOG LOGGED BY: (,^g DATE LOGGED: 7-18-83 JOB NUMBER: 9021055 PljitP Nn 45 SOUTHERN CALIFORNIA SOIL A TESTING,INC. I 1: 11 UJ E >- E 2 < in 2 O CJ TRENCH NUMBER TH- Report No. 14112 ELEVATION 75 DESCRIPTION r- Ul Z E ff = OC )- < CO t o < 2 z Ui E < E E < (J Z CA CO z o o CO z Ui a E o CO z _ Ui — ° 3 > E O Ui _ E ? ^ (0 UJ s o u z Ui o > H H O 5 ** -> E Ui 2 « 5 (J 2 _ CL BROWN SILTY CLAY (TOPSOIL) MOIST STIFF CL GREEN BROWN SILTY CLAY MOIST STIFF ML& CL INTERBEDED LIGHT GREEN BROWN SILTY CLAY & SANDY SILT (SANTIAGO FORMATION) MOIST HARD CK 118.8 1.56 TRENCH ENDED AT 12' Ij^ SOUTHERN CALIFORNIA SUBSURFACE EXPLORATION LOG ^fWr SOIL A TESTING,INC. LOGGED BY: CRR DATE LOGGED: 7-1R-R^ ^fWr SOIL A TESTING,INC. JOB NUMBER: 9021055 Plate No. 46 I. r E > E 2 < Cfl z o < d -o t <fl CO in < -J o TRENCH NUMBER Report No. 14112 ELEVATION rH-76 DESCRIPTION I- UJ z E ff = oc H < (A E — E O < 2 - " ^ Z Z t Ul UJ (fl = ,« z <r CO IM CO z o u E o CO > E Q o a. Ul E 3 I- (0 5 2 I- Z Ui (-z o o z Ui o H O < < -> E Ul 2 "= O CJ CL I I 2 ,1 ,1 ,1 ,1 f IT n l: 111 I*' I*' 1: BROWN SILTY CLAY (TOPSOIL) MOIST STIFF SC YELLOW BROWN & GREEN BROWN CLAYEY SAND MOIST MEDIUM DENSE SM& ML INTERBEDED BUFF WITH GREEN TINT SILTY SAND & SANDY SILT (SANTIAGO FORMATION) MOIST DENSE CK CL& ML GREEN BROWN SILTY CLAY & SANDY SILT MOIST HARD CK SM& ML LIGHT GREEN BROWN SILTY SAND & SANDY SILT MOIST DENSE TRENCH ENDED AT 11 SOUTHERN CALIFORNIA SOIL A TESTING.INC. SUBSURFACE EXPLORATION LOG CRB DATE LOGGED: 7-1R-R^ JOB NUMBER: 3^21055 PlatP Nn 47 I I I I I li j i I ll ll sove-rr.ber 5 . 1976 I I I I ll I 10 12 14 16 18 20 22 24 26 28 1/A/) BORING NO, 13 TOPSOIL. broken Clayey S.-iND, mediun: dense, coisc SANTIAGO n-:. , brown CLAYSTONE hard, dans 13-1 Light-brcn'n Silty. nediur srained SA^ID, dense, dat:: 18OOi? hammer ight-grey, medimn-grained SAND, dense. dasD Green CLAYSTONE, hard, dam?, massively bedded, minor slips N25W 6°SW ia 20.5' 118.2 •Seeenes'^c erna ting Sandv CLAY and CLAY SLIP SURFACES observed in cuttings '2:'25 feet " SHEAR ZONE - 1/2" thick Strike N70E, Dip 6°SE **CON'T. «EXT PAGE** 12.9 SCS&T 9021055 Plate No. 48 GEOCON I i - BORING NO^i:L.^££.llL' ll • •\--'\ Grev-brown. cemented. Silty, ned'iiiir.-grained £ANDST02sE. very dense, damp - Log of Test Boring No. 13 (Con't.) SCS&T 9021055 Plate No. 49 I I Jl ll I I I ll ll r I i f t \ \ \ o sg o o o o o r- 5?..... «1 • 10 N - o _ .I....I....I. I I J U oooooooooooo Oa0r>winvn<Q — — CO UJ ISI UJ -J u cr < a. u c o to Ul a OB o s CM e UJ N m Ui > Ui CO a IT 2 < 6 a cn CO 3* n CM I o (30 o a. I 0) •—' CX SOUTHERN CALIFORNIA son. & TESTING, INC. CALAVERA HEIGHTS-VILLAGE "H" I BY GRAIN SIZE DISTRIBUTION KAR JOB NO. 9021055 DATE 6-04-90 Plate No. 50 li MAXIMUy DENSITY ft OPTIMUM MOISTURE CONTENT 1, ASTM D1557-78 METHOD A 1 SAMPLE DESCRIPTION Maximum Density (pet) Optimum Moisture Cont(v.) •lri-7 (a 8'-9' * BUFF WHITE, SILTY SAND 114.0 14.0 i •1 1 1 EXPANSION TEST RESULTS lj SAMPLE TI-5 0 6'* L CONDITION Remolded P INITIAL M.C.C/.) 11.3 fe INITIAL DENSITY (PCF 116.8 1 FINAL M.C. CM ij. 23.5 I| NORMAL STRESS(PSn 150 1 EXPANSION % 14.3 * Report No. 14112 SOUTHERN CALIFORNIA SOIL A TBSTING,INC. CALAVERA HEIGHTS-VILLAGE "H" BV: KAR OATE: 1-11-83 JOB NUMBER: 9021055 Plate No. 51 I i i i U. CO 0) tu cc H CC < LU z DIRECT SHEAR SUMMARY TI-7 ? 6' TI-5 0 5.5' TH-4 (a 9' 1 2 2M L 2L NORMAL STRESS, KSF ANQLE OF INTERNAL COHESION INTERCEPT SAMPLE DESCRIPTION FRICTION (•) (psf) i i ilyV SOUTHBRN CALIFORNIA SOIL A TBSTING, INC. TH-4 @ 9' TI-5 @ 5.5' * TI-7 § 6' * Remolded to Natural Undisturbed Undistubed •Report No. 14112 9 750 25 300 33 200 CALAVERA HEIGHTS-VILLAGE "H" IIY* KAR DATE: 6-04-90 JOB NUMBER: 9021055 Plate No. 52 I i I i' i' i' I I U. (0 ^ Cf) CO UJ flC (0 ec < UJ z (0 DIRECT SHEAR SUMMARY TI-7 0 8'-9' TI-69 (3 8' TH-75 @ 6' 2M L 2L NORMAL STRESS, KSF SAMPLE DESCRIPTION ANQLE OF INTERNAL FRICTION (•) COHESION INTERCEPT (PBf) TI-7 9 8'-9'* TI-69 @ 8' * TH-75 0 6'* Remolded to 90% Remolded to Natural Remolded to Natural 31 30 13 300 200 800 •Report No. 14112 |y\ SOUTHBRN CALIFORNIA CALAVERA HEIGHTS-VILLAGE "H" \^ '^'^ ^ TESTINQ, INC. BY: XAR OATE: 6-04-90 \^ '^'^ ^ TESTINQ, INC. JOB NUMBER: 9021055 Plate No. 53 I u. CO ^ CO CO UJ flC CO cc < UJ z CO DIRECT SHEAR SUMMARY ? B2 0 40' 1 —t— 1 1 1 1 1 -ri 1 1 ! ! 1 1 1 j T' ' • 1 1 A 1 i i IT- n 1 1 1 t L, 1 1 I' V 1 : / 1 i 1 i -1 i 1 -i : 1 •rl 1 1 ' 1 T 1 1 1 r 1 ir\ i 1 1 4 1 k r- 1 1 1 1 \X 1 1 1 1 1 fin ' 1 1 ^ ! 1 1 1 I I I 1 1 1 4 5 B2 0 42' B2 0 31' 2M L 2L NORMAL STRESS. KSF SAMPLE DESCRIPTION ANQLE OF INTERNAL FRICTION (•) COHESION INTERCEPT (PBf) 32 0 31'* Undisturbed, Slow Shear B2 0 40'* Undisturbed 32 0 42'* Undisurbed, Slow Shear •Report No. 14112 20 38 28 200 150 250 CALAVERA HEIGHTS-VILLAGE "H" BY: [3BA OATE: 10-20-83 JOB NUMBER: 9021055 Plate No. 55 SOUTHERN CALIFORNIA SOIL A TESTING,INC. I i i i i u. CO ^ CO CO UJ OCI Hi (01 cc < UJ z CO DIRECT SHEAR SUMMARY 2 2M L 2L NORMAL STRESS. KSF — -t-f " 1. J 1 -L. _ ^ j j _ r 1 1 J _l_ ] _i- ,l,.„ •A— -L. -L, ft • i I 1 . i-A, ' r L A ' A' A t 1 1 L •i 1 . ,.4 '] j . i I Bl 0 16' B2 0 17' B2 0 22'-24' SAMPLE DESCRIPTION ANQLE OF INTERNAL FRICTION (•) COHESION INTERCEPT (PBf) Bl 0 16'* Undisturbed, Slow Shear B2 0 17'^ Undisturbed, Slow Shear B2 0 22'^ Remolded to 90%, Slow Shear •Report No. 14112 27 400 28 250 20 200 CALAVERA HEIGHl rS-VILLAGE "H" BY: DATE: 10-20-83 JOB NUMBER: 9021055 Plate No. 54 SOUTHBRN CALIFORNIA SOIL A TESTING, INC. NATURAL GROUND BENCHINQ REMOVE UNBUITABLE MATERIAL SUBDRAIN TRENCH: SEE DETAIL ABB )ETAIL A FILTER MATERIAL CUBIC FEET/FOOT FILTER MATERIAL SHALL BE CLASS 2 PERMEABLE MATERIAL PER STATE OF CALIFORNIA STANDARD SPECIFICATIONS, AND APPROVED ALTERNATE. CLASS 2 FILTER MATERIAL SHOULO COMPLY WITH THE FOLLOWINQ LIMITS PERFORATED PIPE 4 0 MINIMUM PERFORATED PIPE SURROUNDED WITH FILTER MATERIAL DETAIL A-2 SIEVE SIZE 1 3/4 3/8 Ne. 4 No. 8 No. 30 No. 50 No. 200 % PASSING 100 90-100 40-100 26-40 1B-33 5-1S 0-7 0-3 6'MIN OVERLAP FILTER FABRIC (MIRAFI 140 OR APPROVED EOUIVALENT) 1 1/2"MAX QRAVEL OR APPROVEO EOUIVALENT 6 CUBIC FEET/FOOT 1 1/2"QRAVEL WRAPPED IN FILTER FABRIC DETAIL OF CANYON SUBDRAIN TERMINAL DESIQN FINISH GRADE 20MIN- NON PERFORATED 4'MIN PIPE PERFORATED 4'MIN If UBDRAIN INSTALLATION'-SUBDRAIN PIPE SHALL BE INSTALLED WITH f 1 PERFORATIONS DOWN ISUBDRAIN PIPE:6UBDRAIN PIPE SHALL BE PVC OR ABS, TYPE SDR 35 FOR FILLS m UP TO 35 FEET DEEP, OR, TYPE SDR 21 POR FILLS UP TO 100 FEET DEEP SOUTHERN CALIFORNIA SOIL A TESTINQ, INC. CALAVERA HEIGHTS-VILLAGE "H" BY: DBA DATE: 6-21-90 JOB NUMBER: 9021055 Plate No. 56 1 I I I I I SLOPE STABILITY CALCULATIONS Janbu's Simplified Slope Stability Method Assume Homogeneous Strength Parameters throughout the slope Fill Slope |t Slope Fil I 1 I JS f) C(DSf) W.(pcf) Inch H (ft) FS 30 350 117 2:1 90 1.6 13 800 140 2:1 45 1.5 ll I I; I Where: Z • Angle of Internal Friction C ' Cohesion (psf) «s « Unit weight of Soil (pcf) H = Height of Slope (ft) FS • Factor of Safety /V SOUTHBRN CALIFORNIA CALAVERA HEIGHTS-VILLAGE "H" SOIL ATBSTINQJNC. BY: DBA OATE: 6-21-90 JOB NUMBER: 9021055 Plate No. 57 I 'l 'l I I I il I 1 I I li ii 1 I LONGITUDINAL TRANSVERSE JOINTS ^^^^ 1 TRANSVERSE CONTROL JOMTS t LONGITUDINAL CONTROL JOMT ! W (ft) TRANSVERSE CONTROL-JOMTS w/2 I I W (ft) - JOMT 3' SPACMG W/2 W/2 SLAB ON GRADE 10 FEET OR GREATER IN WIDTH SLAB ON GRADE 5 FEET TO 10 FEET IN WIDTH NOTE: 1. -W SHOULD NOT EXCEED 15 FEET. 2. JOMT PATTERN SHOULD BE NEARLY SQUARE. -TOOLED OR SAWED JOINT / »T/2 'T/4 / REINFORCEMENT -PER REPORT (2* MM. COVER) \ *T » TMCKNESS PER REPORT CONTROL JOINT DETAIL NO SCALE PROJECT: CALAVERA HEIGHTS-VILLAGE "H" QY* KAR DATE: 6-04-90 JOB NUMBER: ^021055 Plate No. 58 SOUTHERN CALIFORNIA SOIL & TESTING, INC. I 1 WATERPROOF BACK OF WALL PER ARCHITECT'S SPECIFICATIONS 3/4 INCH CRUSHED ROCK OR MIRADRAIN 6000 OR EQUIVALENT GEOFABRIC BETWEEN ROCK AND SOIL 4 INCH DIAMETER PERFORATED PIPE SLAB-ON-GRADE RETAINING WALL SUBDRAIN DETAIL NO SCALE SOUTHBRN CALIFORNIA SOiL ATBSTINQ,INC. CALAVERA HEIGHTS-VILLAGE "H' BY: KAR JOB NUMBER: 9021055 DATE; 6-04-90 Plate No. 59 I I l! I I APPENDIX A I I l| I 1 I I I SOUTHERN CALIFORNIA SOIL & TESTING, INC. Il I I 1 I i I ll I I ll I I I ll ll I CALAVERA HEICJflS VILLflGE H, EUI AVENUE AND VICTORIA AVENUE, CARLSBAD RBCCMMENLED OWDING SPBCIFICaTIONS - GENERAL PROVISICNS (2NERAL INIENT The intent of these specifications is to establish procedures for clearing, conpacting nattiral ground, preparing areas to be filled, and placing and conpacting fill soils to the lines and grades shown on the accepted plans. M The recomtEndations contained in the preliminary geotechnical investigation I report and/or the attached Special Provisions are a part of the Reconmended Grading Specifications and shall supersede the provisions contained hereinafter in the case of conflict. These specifications shall only be ft used in conjunction with the geotechnical report for which they are a part. ' No deviation from these specifications will be allowed, except where specified in the geotechnical report or in other written communication signed by the Geotechnical Engineer. GBSERVKTIGN AND TESTIHG Southern California Soil and Testing, Inc., shall be retained as the Geotechnical Engineer to observe and test the earthwork in accordance with these specifications. It will be necessary that the Geotechnical Engineer or his representative provide adequate observation so that he may provide his opinion as to v^iether or not the vork was acconplished as specified. It shall be the responsibility of the contractor to assist the Geotechnical Engineer and to keep him appraised of work schedules, changes and new information and data so that he may provide these opinions. In the event that any unusual conditions not covered by the special provisions or preliminary geotechnical report are encountered during the grading operations, the Geotechnical Engineer shall be contacted for further recomnendations. (R-9/89) I I SCS&T 9021055 june 21 IQQfl June 21, 1930 Appendix, Page 2 If, in the opinion of the Geotechnical Engineer, substandard conditions are 1^ encountered, such as questionable or unsuitable soil, unacceptable moisture content, inadequate compaction, adverse veather, etc.; construction should I be stopped until the conditions are remedied or corrected or he shall reconmend rejection of this work. I I Tests used to determine the degree of conpaction should be perfomed in I accordance with the following American Society for lasting and Materials i test methods: J Maximum Density & Optimum Moisture Content - ASTO D-1557-78. Density of Soil In-Place - ASTM [D-1556-64 or ASTM D-2922. All densities shall be expressed in terms of Relative Compaction as determined by the foregoing ASIM testing procedures. PREPARATICN QF AREAS TD RECEIVE FILL I I Ml v^ation, brush and debris derived fr™ clearing operations shall I be re^, and legally disposed o£. Ml areas disturbed by site grading • Should be left in a neat and finished appearance, free fro™ unsightly _ debris. ^ I After clearing or benching the natural ground, the areas to be filled shall be scarified to a depth of 6 i^hes, brought to the proper noisture content, conpacted and tested for the specified minimum degree of conpaction. All I loose soils in excess of 6 inches thick should be rem:n^ to firm natural ground which is defined as natural soils which possesses an in-situ density || of at least 90% of its maximum dry density. I II (R-9/89) I I I I I 1 I I I I I I I I I I I I I 1 SCS&T 9021055 June 21, 1990 Appendix, Page 4 FHiL MATERIAL Materials to be placed in the fill shall be approved by the Geotechnical Engineer and shall be free of vegetable matter and other deleterious substances. Granular soil shall contain sufficient fine material to fill the voids. The definition and disposition of oversized rocks and expansive or detrinental soils are covered in the geotechnical report or Special Provisions. E^^jansive soils, soils of poor gradation, or soils with low strength characteristics may be thoroughly mixed with other soils to provide satisfactory fill material, but only with the explicit consent of the Geotechnical Engineer. Any import material shall be approved by the Geotechnical Engineer before being brought to the site. PLACING AND CCMPACTIC3N OF FILL /proved fill material shall be placed in areas prepared to receive fill in layers not to exceed 6 inches in conpacted thickness. Each layer shall have a uniform maisture content in the range that will allow the conpaction effort to be efficiently applied to achieve the specified degree of compaction. Each layer shall be uniformly compacted to the specified minimum degree of conpaction with equipment of adequate size to economically conpact the layer. Coipaction equipment should either be specifically designed for soil conpaction or of proven reliability. The minimum degree of conpaction to achieved is specified in either the Special Provisions or the reconmendations contained in the preliminary geotechnical investigation report. When the structural fill material includes rocks, no rocks will be allovged to nest and all voids must be carefully filled with soil such that the minimum degree of conpaction recommended in the Special Provisions is achieved. The maxinum size and spacing of rock permitted in structural fills and in non-structural fills is discussed in the geotechnical report, vhen applicable. (R-9/89) I i SCS&T 9021055 June 21, 1990 Appendix, Page 5 Field observation and conpaction tests to estimate the degree of compaction of the fill will be taken by the Geotechnical Engineer or his representative. The location and frequency of the tests shall be at the Geotechnical Engineer's discretion. When the conpaction test indicates that a particular layer is at less than the required degree of conpaction, the layer shall be revrorked to the satisfaction of the Geotechnical Engineer and until the desired relative conpaction has been obtained. Fill slopes shall be conpacted by means of sheepsfoot rollers or other suitable equipinent. Conpaction by sheepsfoot rollers shall be at vertical intervals of not greater than four feet. In addition, fill slopes at a ratio of tvro horizontal to one vertical or flatter, should be trackroUed. Steeper fill slopes shall be over-built and cut-back to finish contours after the slope has been constructed. Slope conpaction operations shall result in all fill naterial six or more inches inward from the finished face of the slope having a relative conpaction of at least 90% of naximum dry density or the degree of conpaction specified in the Special Provisions section of this specification. The conpaction operation on the slopes shall be continued until the Geotechnical Engineer is of the opinion that the slopes will be stable surficially stable. Density tests in the slopes will be made by the Geotechnical Engineer during construction of the slopes to determine if the required conpaction is being achieved. Where failing tests occur or other field problems arise, the Contractor will be notified that day of such conditions by written comnunication from the Geotechnical Engineer or liis representative in the form of a daily field report. If the method of achieving the required slope conpaction selected by the Contractor fails to produce the necessary results, the Contractor shall revork or rebuild such slopes until the required degree of conpaction is obtained, at no cost to the Owner or (jeotechnical Engineer. (R-9/89) I SCS&T 9021055 June 21, 1990 Appendix, Page 6 COT SLOPES The Engineering Geologist shall inspect cut slopes excavated in rock or lithified fomational material during the grading operations at intervals determined at his discretion. If any conditions not anticipated in the preliminary report such as perched water, seepage, lenticular or confined strata of a potentially adverse nature, unfavorably inclined bedding, joints or fault planes are encountered during grading, these conditions shall be analyzed by the Engineering Geologist and Soil Engineer to determine if mitigating measures are necessary. Unless otherwise specified in the geotechnical report, no cut slopes shall be excavated higher or steeper than that allowed by the ordinances of the controlling govemmental agency. EllGINEERING OBSERVKnGN Field observation by the Geotechnical Engineer or his representative shall be made during the filling and conpacting operations so that he can express his opinion regarding the confoinnance of the grading with acceptable standards of practice. Neither the presence of the Geotechnical Engineer or his representative or the observation and testing shall not release the Grading Contractor from his duty to compact all fill material to the specified degree of conpaction. SEASCN Lnms Fill shall not be placed during unfavorable weather conditions. When vrork is interrupted by heavy rain, filling operations shall not be resimied until the proper moisture content and density of the fill materials can be achieved. Damaged site conditions resulting from weather or acts of God shall be repaired before acceptance of vrork. {R-9/89) SCS&T 9021055 June 21, 1990 .^^ndix, Page 7 RBC3QMMENEED GRADING SPBCIFTCATTONS - SPECIAL PPOVTSTONS RELATIVE CCMPACnON: The minimum ciegree of conpaction to be obtained in conpacted natural ground, conpacted fill, and conpacted backfill shall be at least ?0 percent. For street and parking lot subgrade, the upper six inches should be conpacted to at least 95% relative conpaction. EXPANSIVE SOILS: Detrimentally expansive soil is defined as clayey soil which has an ejqpansion index of 50 or greater when tested in accordance with the Uniform Building Code Standard 29-C. OVERSIZED MZOERIAL: Oversized fill material is generally defined herein as rocks or lunps of soil over 6 inches in diameter. Oversize materials should not be placed in fill unless reconmendations of placement of such naterial is provided by the geotechnical enqineer. At least 40 percent of the fill soils shall pass through a No. 4 U.S. Standard Sieve. •nWNSrnCW mrS: where transitions between cut and fill occur within the proposed building pad, the cut portion should be undercut a minimum of one foot below the base of the proposed footings and reconpacted as structural backfill. In certain cases that would be addressed in the geotechnical report, special footing reinforcement or a combination of special footing reinforcement and undercutting may 1>9 required. (R-9/89) I I APPENDIX B SOUTHERN CALIFORNIA SOIL & TESTING, INC. ***************************^^^^^^^^^^^^^^^^^^ * * * SLOPE STABILITY ANALYSIS * * * ************** S T A B R G ***************** * ^ * PORTIONS (C) COPYRIGHT 1985, 1986 * * * * GEOSOFT * * * * ALL RIGHTS RESERVED * * * ************1fk**i,-k*-k-k*-k*1,*ic-k********it*i,i,i,i,i,i,^, vera Hills Village I, 9021055, Section BB, Cut Toe Failure, fn=CHVIBA NTHROL DATA I • NUMBER OF SPECIFIED CENTERS NUMBER OF DEPTH LIMITING TANGENTS NUMBER OF VERTICAL SECTIONS NUMBER OF SOIL LAYER BOUNDARIES NUMBER OF PORE PRESSURE LINES 0 0 11 4 0 (NUMBER OF POINTS DEFINING COHESION PROFILE 0 IC COEFFICIENT S1,S2 = .00 .00 I 'tH STARTS AT CENTER ( 200 . 0 ,-315 . 0) , WITH FINAL GRID OF 1.0 •CIRCLES PASS THROUGH THE POINT ( 213.0,-260.0) '^0 HA 50.0 100.0 116.0 142.0 177.0 180.0 213.0 240.0 258.0 27 ^CKS -300.0-300.0-292.0-290.0-279.0-277.0-260.0-260 0-260 0-?^ N CRACK-300.0-300.0-292.0-290.0-279.0-277.0-260 0-260 0-2lS*0-25 J|ARY 1-300.0-300.0-292.0-290.0-279.0-277.0-260.0-260 0-26S'o-25 :|ARY 2-277.0-277.0-277.0-277.0-277.0-277.0-260 0-260 0-2lo'Sl2l S^J • • • • °-277. 0-277 . O-2I0 0-2S0 ' 0-254 * tll •-JARY 4-180.0-180.0-180.0-180.0-180.0-180.0-180.0-180.0-180 0-18 4.0 400.0 T 0.0-214 0.0-214 0.0-214 0.0-214, 0.0-214, 0 0 0 0 0 0.0-180.0 r. PROPERTIES J I I COHESION FRICTION ANGLE 250.0 150.0 200.0 TANGENT RADIUS -258.5 56.5 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 (X) CENTER (Y) CENTER FS(BISHOP) FS(OMS) 200.0 -315.0 1.570 1.496 I z I I 9 I 1^ I -258.9 56. 1 202 . 0 -315.0 1.570 1.506 -258.4 54. 6 200. 0 -313.0 1.571 1.494 -258.0 57 . 0 198.0 -315.0 1.576 1.491 -258.5 58. 5 200.0 -317.0 1.570 1.498 -258.8 58. 2 201.0 -317.0 1.570 1.502 -258. 9 58. 1 202.0 -317.0 1.570 1.507 -258.7 57.3 201. 0 -316.0 1.569 1.501 -258.9 57. 1 202. 0 -316.0 1.570 1.506 -258.7 56.3 201. 0 -315.0 1.569 1.500 -258.9 56.1 202 . 0 -315.0 1.570 1.506 -258.7 55.3 201. 0 -314.0 1.570 1.499 -258.5 56.5 200. 0 -315.0 1.570 1.496 -258.9 55.1 202.0 -314.0 1.571 1.505 -258.5 55. 5 200.0 -314.0 1.570 1.495 -258.5 57.5 200. 0 -316.0 1. 570 1.497 -258.9 57.1 202. 0 -316.0 1.570 1.506 NIMUM= 1.569 FOR THE CIRCLE OF CENTER ( 201.0,-315.0) I I ll li I I I ll I I lj I ****************** * STABRG * ****************** LAYER COHESION 1 2 3 250.0 150.0 200.0 FRICTION ANGLE 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 FACTOR OF SAFEFr' 2.03 -370.0 •320.0 _ < Q a: 8-270.0 o >- -220.0. -170.0 50.0 150.0 250.0 X COORDINATE 350.0 450.0 LAYER COHESION FRICTION DENSITY ANGLE 1 2 3 250.0 150.0 200.0 28.0 30.0 20.0 12b.O 125.0 120.0 FACTOR OF SAFEPi- 1.57 -370.0 -320.0 _ Q 8 -270.0 CJ >- -220.0 _ -170.0 50.0 150.0 I 250.0 X COORDINATE 350.0 I 450.0 I 1 I I I 11 1 % 1 I I I I il i I I ll I ll I -249.5 15. 5 270. 0 -265.0 2.055 1.937 -249.9 15. 1 272.0 -265.0 2.279 2. 184 -249.4 13. 6 270. 0 -263.0 2.110 1. 979 -248.8 16.2 268.0 -265.0 2. 062 1.930 -249.5 17.5 270.0 -267.0 2. 039 1.935 -249.7 17.3 271. 0 -267.0 2.079 1. 979 -249.5 16.5 270.0 -266.0 2.044 1.932 -249.3 17.7 269. 0 -267.0 2.036 1.928 -249.2 16. 8 269. 0 -266.0 2.033 1.917 -249.5 16.5 270. 0 -266.0 2. 044 1.932 -249.2 15. 8 269. 0 -265.0 2.036 1. 912 -248.9 17. 1 268. 0 -266.0 2.064 1.941 -249.5 15. 5 270.0 -265.0 2.055 1.937 -248.8 16.2 268.0 -265.0 2. 062 1.930 -249. 0 18. 0 268. 0 -267.0 2.072 1. 956 -249.5 17.5 270. 0 -267.0 2.039 1.935 MINIMUM= 2.033 FOR THE CIRCLE OF CENTER ( 2 69.0,-266.0) ****************** * STABRG * ****************** *******************************************^^ * * * SLOPE STABILITY ANALYSIS * * * ************** STABRG ***************** * PORTIONS (C) COPYRIGHT 1985, 1986 * GEOSOFT ALL RIGHTS RESERVED * * * * * *****************************************^^^^ ara Hills Village I, 9021055, Section BB, Fill Toe Failure, fn=CHVIBB DL DATA I I NUMBER OF SPECIFIED CENTERS DUMBER OF DEPTH LIMITING TANGENTS NUMBER OF VERTICAL SECTIONS NUMBER OF SOIL LAYER BOUNDARIES 'lUMBER OF PORE PRESSURE LINES II^IUMBER OF POINTS DEFINING COHESION PROFILE 0 0 11 4 0 riC COEFFICIENT S1,S2 .00 .00 I [H STARTS AT CENTER ( 270.0,-265.0),WITH FINAL GRID OF 1.0 CIRCLES PASS THROUGH THE POINT ( 274.0,-250.0) ili: I 50.0 100.0 116.0 142.0 177.0 180.0 213.0 240.0 258.0 274.0 400.0 I^CKS -300.0-3 00.0-292.0-290.0-279.0-277.0-260.0-2 60.0-260.0-250 pRACK-300.0-3 00.0-292.0-290.0-279.0-277.0-260.0-260.0-260 . 0-250 JJIY 1-300.0-300.0-292.0-290.0-279.0-277.0-260.0-260.0-260.0-250 IDARY 2-277.0-277.0-277.0-277.0-277.0-277.0-260.0-260.0-260.0-250 IjiRY 3-277 . 0-277 . 0-277 . 0-277 . 0-277 . 0-277 . 0-260. 0-260 . 0-254 . 0-250 jiRY 4-180.0-180.0-180.0-180.0-180.0-180.0-180.0-180.0-180.0-180 .0-214 .0-214. .0-214, .0-214, .0-214, .0-180.0 I I l| I l-ROPERTIES COHESION FRICTION ANGLE 250.0 150.0 200.0 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 TANGENT RADIUS (X) CENTER (Y) CENTER FS(BISHOP) FS(OMS) I I I I I I I I 1 ***************************************^.^^^^^ * * * SLOPE STABILITY ANALYSIS * * * ************** STABRG ***************** * * * PORTIONS (C) COPYRIGHT 1985, 1986 * * * * GEOSOFT * * * * ALL RIGHTS RESERVED * * * ***************************************^^^^^^ era Hills Village I, 9021055, Section BB, Cut Toe Failure, fn=CHVIBA OL DATA NUMBER OF SPECIFIED CENTERS 0 [NUMBER OF DEPTH LIMITING TANGENTS 0 ^NUMBER OF VERTICAL SECTIONS 11 NUMBER OF SOIL LAYER BOUNDARIES 4 NUMBER OF PORE PRESSURE LINES 0 NUMBER OF POINTS DEFINING COHESION PROFILE 0 .00 |IC COEFFICIENT S1,S2 = .00 .00 FjH STARTS AT CENTER ( 300.0,-300.0),WITH FINAL GRID OF 1.0 CIRCLES PASS THROUGH THE POINT ( 320.0,-237.0) k )ffiTRY bNS I ID/ I 50. 0 100. 0 116. 0 142. 0 177. 0 180. 0 213 . 0 240. 0 258. 0 274 . 0 400. 0 300. 0-300. 0-•292. 0-290. 0-279. 0 -277. 0-260. 0-260. 0-260. 0-250. 0-•214. 0 300. 0-300. 0-292. 0-290. 0-279. 0 -277. 0-260. 0-260. 0-260. 0-250. 0-214. 0 300. 0-300. 0-292. 0-290. 0-279. 0 -277. 0-260. 0-260. 0-260. 0-250. 0-214. 0 277. 0-277. 0-277. 0-277. 0-277. 0 -277. 0-260. 0-260. 0-260. 0-250. 0-214. 0 277. 0-277. 0-277. 0-277. 0-277. 0 -277. 0-260. 0-260. 0-254. 0-250. 0-214. 0 180. 0-180. 0-180. 0-180. 0-180. 0--180. 0-180. 0-180. 0-180. 0-180. 0-180. 0 IfROPERTIES JR COHESION I I T 250.0 150.0 200.0 FRICTION ANGLE 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 TANGENT RADIUS (X) CENTER (Y) CENTER FS(BISHOP) FS(OMS) -233.9 66.1 300. 0 -300.0 1.933 1.828 -234.5 65.5 302. 0 -300.0 1. 980 1.881 -233.8 64.2 300. 0 -298.0 1. 939 1.831 -233 . 3 66.7 298. 0 -300.0 1.917 1.807 -233 . 6 66.4 299.0 -300.0 1.922 1.815 -233.2 65.8 298. 0 -299.0 1.918 1.805 -232.9 67.1 297. 0 -300.0 1.919 1.805 -233 . 3 67.7 298. 0 -301.0 1. 917 1.809 -233 . 6 67. 4 299.0 -301.0 1.921 1.816 -233 . 0 68.0 297. 0 -301.0 1.919 1.808 -233 . 4 68. 6 298. 0 -302.0 1.918 1.812 -233 . 6 66.4 299. 0 -300.0 1.922 1.815 -232.9 67.1 297. 0 -300.0 1.919 1.805 -233 . 1 68.9 297. 0 -302.0 1.920 1.812 -233 . 7 68.3 299. 0 -302.0 1.920 1.817 NIMUM= 1.917 FOR THE CIRCLE OF CENTER ( 298.0,-301.0) I ****************** * STABRG * ****************** LAYER COHESION 1 2 3 250.0 150.0 200.0 FRICTION ANGLE 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 FACTOR OF SAFEH 1.92 -370.0 _ -320.0 J UJ a: 8 -270.0 o -220.0 _ 170.0 50.0 150.0 I 250.0 X COORDINATE 350.0 I 450.0 I I I I I ********************************************* a^ra Hills Village I, 9021055, Section BB, Bottom Failure, fn=CHVIBD ********************************************* * * * SLOPE STABILITY ANALYSIS * * * ************** STABRG ***************** * * * PORTIONS (C) COPYRIGHT 1985, 1986 * * * * * * GEOSOFT ALL RIGHTS RESERVED * * * * * bL DATA NUMBER OF SPECIFIED CENTERS lUMBER OF DEPTH LIMITING TANGENTS .DUMBER OF VERTICAL SECTIONS ! NUMBER OF SOIL LAYER BOUNDARIES WUMBER OF PORE PRESSURE LINES T I I 0 0 11 4 0 DUMBER OF POINTS DEFINING COHESION PROFILE 0 TC COEFFICIENT S1,S2 = .00 .00 STARTS AT CENTER ( 340.0,-360.0),WITH FINAL GRID OF 1.0 IIRCLES PASS THROUGH THE POINT ( 380.0,-220.0) lETRY NS 50. 0 100. 0 116. 0 142. 0 177. 0 180. 0 213. 0 240. 0 258. 0 274. 0 400. 0 CKS -300. 0-300. 0 -292. 0-290. 0 -279. 0 -277. 0-260. 0 -260. 0 -260. 0 -250. 0 -214. 0 RACK -300. 0-300. 0 -292. 0-290. 0 -279. 0 -277. 0-260. 0 -260. 0 -260. 0 -250. 0 -214. 0 RY 1 -300. 0-300. 0 -292. 0-290. 0 -279. 0 -277. 0-260. 0 -260. 0 -260. 0 -250. 0 -214. 0 RY 2 -277. 0-277. 0 -277. 0-277. 0 -277. 0 -277. 0-260. 0 -260. 0 -260. 0 -250. 0 -214. 0 RY 3 -277. 0-277. 0 -277. 0-277. 0 -277. 0 -277. 0-260. 0 -260. 0 -254. 0 -250. 0 -214. 0 RY 4 -180. 0-180. 0 -180. 0-180. 0 -180. 0 -180. 0-180. 0 -180. 0 -180. 0 -180. 0 -180. 0 I ll I f fROPERTIES COHESION 250.0 150.0 200.0 FRICTION ANGLE 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 TANGENT RADIUS (X) CENTER (Y) CENTER FS(BISHOP) FS(OMS) -214.4 145. 6 340.0 -360.0 1.811 1.721 -214.9 145.1 342. 0 -360.0 1.807 1.721 -215.2 144.8 343.0 -360.0 1.808 1. 723 -214.9 144.1 342. 0 -359.0 1.807 1.721 -215.2 143.8 343.0 -359.0 1.808 1.723 -214.9 143.1 342.0 -358.0 1.807 1.720 -214.6 144.4 341.0 -359.0 1.808 1.720 -215.1 142.9 343.0 -358.0 1.808 1.722 -214.6 143.4 341.0 -358.0 1.808 1.719 -214.7 145.3 341. 0 -360.0 1.809 1.721 -215.2 144.8 343.0 -360.0 1.808 1.723 NIMUM= 1.807 FOR THE CIRCLE OF CENTER ( 342.0,-359.0) ****************** * STABRG * ****************** I I I I I I I I LAYER COHESION 1 2 3 250.0 150.0 200.0 FRICTION ANGLE 28.0 30.0 20.0 DENSITY 125.0 125.0 120.0 FACTOR OF SAFEFi- 1.81 -370.0 _ -170.0 50.0 150.0 250.0 350.0 450.0 X COORDINATE I I I I I I ********************************************* * * * SLOPE STABILITY ANALYSIS * * * ************** STABRG ***************** * * * PORTIONS (C) COPYRIGHT 1985, 1986 * * * * GEOSOFT * * * * ALL RIGHTS RESERVED * * * ********************************************* Vera Hills Village I, 9021055, Section CC, Clay Toe Failure, fn=CHVICA " I I I OL DATA NUMBER OF SPECIFIED CENTERS 0 NUMBER OF DEPTH LIMITING TANGENTS 0 NUMBER OF VERTICAL SECTIONS 12 NUMBER OF SOIL LAYER BOUNDARIES 5 NUMBER OF PORE PRESSURE LINES 0 NUMBER OF POINTS DEFINING COHESION PROFILE 0 IC COEFFICIENT S1,S2 = .00 .00 1 H STARTS AT CENTER ( 340.0,-310.0),WITH FINAL GRID OF 1.0 I ill' CIRCLES PASS THROUGH THE POINT ( 340.0,-2 63.0) TRY ONS 50. 0 100. 0 133 . 0 175. 0 205. 0 235. 0 248. 0 310. 0 335. 0 340. 0 360.0 500 315. 0 -315. 0 -297. 0 -297. 0-283. 0 -280. 0 -277. 0 -277. 0-268. 0-267. 0 -260.0 -260 315. 0 -315. 0 -297. 0 -297. 0-283. 0 -280. 0 -277. 0 -277. 0-268. 0-267. 0 -260.0 -260 315. 0 -315. 0 -297. 0 -297. 0-283. 0 -280. 0 -277. 0 -277. 0-268. 0-267. 0 -260.0 -260 315. 0 -315. 0 -297. 0 -297. 0-283. 0 -280. 0 -277. 0 -267. 0-264. 0-263. 0 -260.0 -260 264. 0 -264. 0 -264. 0 -264. 0-264. 0 -264. 0 -264. 0 -264. 0-264. 0-263. 0 -260.0 -260 263. 0 -263. 0 -263. 0 -263. 0-263. 0 -263. 0 -263. 0 -263. 0-263. 0-263. 0 -260.0 -260 150. 0 -150. 0 -150. 0 -150. 0-150. 0 -150.0 -150. 0 -150. 0-150. 0-150. 0 -150.0 -150 fACKS iCRAC )ARY NDARY I^Y NuARY I COHESION FRICTION ANGLE DENSITY 150.0 30.0 125.0 200.0 20.0 120.0 100.0 10.0 110.0 200.0 20.0 120.0 I I I IBER I 2 i 6 I 9 I "X I 6 i I I I I I ll 1 I I I I TANGENT RADIUS (X) CENTER (Y) CENTER FS(BISHOP) FS(OM -263 . 0 47. 0 340. 0 -310.0 2.517 2.432 -263.0 47. 0 342.0 -310.0 2.665 2.584 -263.0 45.0 340. 0 -308.0 2.530 2.441 -263.0 47.0 338.0 -310.0 2.518 2.421 -263.0 49.0 340. 0 -312.0 2.511 2.428 -263.0 49.0 341.0 -312.0 2.571 2.491 -263.0 48. 0 340. 0 -311.0 2.513 2.429 -263.0 49.0 339.0 -312.0 2.515 2.427 -263.0 50. 0 340. 0 -313.0 2.509 2.429 -263.0 50. 0 341.0 -313.0 2.566 2.487 -263.0 50.0 339. 0 -313.0 2.516 2.430 -263.0 51. 0 340.0 -314.0 2.509 2.430 -263.0 51.0 341.0 -314.0 2.563 2.485 -263.0 51.0 339.0 -314.0 2.517 2.433 -263.0 52.0 340.0 -315.0 2.509 2.432 -263.0 50. 0 341.0 -313.0 2.566 2.487 -263.0 50. 0 339. 0 -313.0 2.516 2.430 -263.0 52.0 339. 0 -315.0 2.520 2.437 -263.0 52. 0 341. 0 -315.0 2.560 2.484 MINIMUM= 2.509 FOR THE CIRCLE OF CENTER ( 340.0,-314.0) ****************** * STABRG * ****************** LAYER COHESION FRICTION DENSITf ANGLE 1 150.0 30.0 125.0 2 200.0 20.0 120.0 3 100.0 10.0 110.0 4 200.0 20.0 120.0 FACTOR OF SAFETY 2.51 -380.0 ^ -320.0 _ OC 8 -260.0 o -200.0 _ 140.0 50.0 170.0 I 290.0 X COORDINATE 410.0 I 530.0 ********************************************* * * * SLOPE STABILITY ANALYSIS * ^ * ************** STABRG ***************** * * * PORTIONS (C) COPYRIGHT 1985, 1986 * * * * GEOSOFT * * * * ALL RIGHTS RESERVED * * ********************************************* ra Hills Village I, 9021055, Section CC, Fill Toe Failure, fn=CHVICB " L DATA I I I I I I I 'B JIUMBER OF SPECIFIED CENTERS 0 •UMBER OF DEPTH LIMITING TANGENTS 0 •iuMBER OF VERTICAL SECTIONS 12 NUMBER OF SOIL LAYER BOUNDARIES 5 SUMBER OF PORE PRESSURE LINES 0 rUMBER OF POINTS DEFINING COHESION PROFILE 0 I'-e COEFFICIENT S1,S2 = .00 .00 I il STARTS AT CENTER ( 340.0,-305.0),WITH FINAL GRID OF 1.0 CIRCLES PASS THROUGH THE POINT ( 360.0,-260.0) I ilrRY l|bNS 50.0 100.0 133.0 175.0 205.0 235.0 248.0 310.0 335.0 340.0 360.0 500 -RACKS -315 0-315.0-297.0-297.0-283.0-280.0-277.0-277.0-268.0-267.0-260.0-260 I'^ScK-sis 0-3 li 0-297 . 0-297 . 0-283 . 0-280.0-277 . 0-277 . 0-268 . 0-267 . 0-260. 0-260 tS ^si^. S-30-297 . 0-297 . 0-283 . 0-280. 0-277 . 0-277 . 0-268 .0-267 . 0-26^ ^D^Y 2-315 0-315.0-297.0-297.0-283.0-280.0-277.0-267.0-264.0-263.0-260.0-260 3-264 * 0-26^ 0-264. 0-264 . 0-264 . 0-264 . 0-264 . 0-264 . 0-264 . 0-263 . 0-260. 0-260 I I I PROPERTIES COHESION FRICTION ANGLE DENSITY 150.0 30.0 125.0 200.0 20.0 120.0 100.0 10.0 110.0 200.0 20.0 120.0 LAYER COHESION FRICTION DENSITY ANGLE 1 150.0 30.0 125.0 2 200.0 20.0 120.0 3 100.0 10.0 110.0 4 200.0 20.0 120.0 FACTOR OF SAFETY 2.23 -380.0 _ -320.0 z o oc 8 -260.0 o -200.0- -140.0 50.0 170.0 290.0 X COORDINATE 410.0 I 530.0