HomeMy WebLinkAboutCT 77-02; HOSP GROVE UNIT 5; ENGINEERING OBSERVATIONS OF GRADING AND TESTING; 1981-05-13. 3467 Kurtz Sireel
San Diego, California 92110
714-224-2911
Telex 697-841
WoodwarcAlyde Consultants
May 13, 1981
Project No. 592072-FC02
Broadmoor Homes, Inc.
3911 Sorrento Valley Boulevard
San Diego, California 92126
Attention: Mr. James Carter
FINAL REPORT OF
ENGINEERING OBSERVATION OF
GRADING AND TESTING OF
COMPACTED FILL
WOODRIDGE PHASE II
CARLSBAD TRACT 77-2, UNIT 5
LOTS 130 THROUGH 143
CARLSBAD, CALIFORNIA
Gentlemen:
In accordance with your request, and our proposal dated
January 22, 1981, we have provided engineering services in
conjunction with the grading of the subject site.
SCOPE OF WORK
Our services included:
Providing engineering observation of the qradina
operation, ^
Providing engineering and geologic observation of
alluvial removal and buttress construction.
Performing field density tests in the placed and
compacted fill.
Performing laboratory tests on representative
samples of the material used for fill, and
Providing professional opinions regarding the con-
tractor's general adherence to plans and specifications,
Consulting Engineers. Geologists
and Environmental Scientists
Ollices in Olher Principal Cities
•Broadmoor Homes,
May 13, 1981
Project No. 592072-FC02
Page 2
Wo^iward-Clyde Consultants
SUMMARY OF GENERAL EARTHWORK AND TESTING
Site preparation, compaction, and testing were done
between December 22, 1980 and April 30, 1981, In our
opinion, based on our observation and testing, the work
performed during that period was in general conformance with
the Specifications for Controlled Fill attached to our
report entitled "Soils and Geologic Investigation for the
Proposed Carlsbad Tract No. CT 77-2," dated July 19, 1979.
During the grading period, fill was placed, compacted,
and tested on Lots 13 0 through 143 along the western edge of
Monroe Street, and a private roadway parallelling Monroe
Street. A buttress fill was constructed at the rear of
Lots 136 through 141 in accordance with the recommendations
of the preliminary report. A 3 to 1 inclined fill slope was
constructed northward from Lot 130 in accordance with a
report dated April 22, 1981. The grading operation gener-
ally consisted of removing alluvial and loose fill soils,
installing subdrains under the buttress slope and on the
bottom of the draw along Monroe Street, scarifying, watering
and compacting areas to receive fill, and making cuts and
fills to design grade.
During the grading operation, compaction procedures
were observed, and field density tests were made to help
evaluate the relative compaction of the placed fill. Field
observations and results of field density tests indicate
that the fill has been generally compacted to 90 percent or
more of maximum laboratory dry density as determined in
accordance with ASTM Test Method No. D1557-70. For re-
ference, the approximate locations of field density tests
and the limits of compacted fill have been recorded on a
copy of the grading plan. The results of field density
tests, expressed as a percent of laboratory dry density
(relative compaction), are given on the attached forms.
[nc. Broadmoor Homes^jki
May 13, 1981 ^
Project No. 592072-FC02
Page 3
W^dward-Clyde Consultants
Laboratory tests were made on representative samples of
the materials used for fill. The tests were performed to
evaluate moisture density relationships, maximum dry density,
optimum moisture content, grain size distribution, plas-
ticity and swell characteristics. The results of laboratory
tests are attached.
SUMMARY OF FINISH GRADE SOIL CONDITIONS
Inspection and laboratory tests indicate that non-
expansive fill was placed within 2 feet of rough grade on
all lots noted herein. The soils at finish grade in our
opinion can be classed as SM soils. They meet the HUD
criteria for slab underlay in that they swell less than
2 percent under a surcharge load of 150 psf, have less than
35 percent passing the No. 200 sieve, and the plasticity
index is less than 15.
RECOMMENDATIONS
Foundations for Structures on Nonexpansive Soils
We recommend that foundations for single- or two-story,
multi-dwelling, residential structures placed on nonex-
pansive, properly compacted fill be designed for a bearing
pressure not exceeding 2,000 psf (dead plus live loads). We
recommend that footings be founded at least 12 inches below
finished grade and have a minimum width of 12 inches. In
our opinion, this bearing pressure can be increased by no
more than one-third for loads that include wind or seismic
forces.
Slopes
Fill Slopes at the site have inclinations varying from
approximately 3:1 to 2:1 (horizontal to vertical), and are
Broadmoor Homes ^Hnc.
May 13, 1981 W
Project No. 592072-FC02
Page 4
W^||piward-Clyde Consultants
approximately 80 feet high maximum. Fill slopes were
treated by overfilling, periodically backrolling with a
sheepsfoot compactor, track rolled and then trimmed back to
grade.
Additional Fill and Utility Trenches
This report discusses the fill placement observed by
personnel from our firm during the periods specified. We
recommend that any additional fill placed, as well as
backfill placed in utility trenches located within 5 feet of
a building and deeper than 12 inches, or backfill placed in
any trench located 5 feet or more from a building and deeper
than 5 feet, be compacted under our observation and tested
to verify compliance with the earthwork specifications for
the project. We should be contacted at least 24 hours prior
to backfilling operations.
Drainage
We recommend that positive measures be taken to prop-
erly finish grade each lot after structures and other improve-
ments are in place, so that drainage waters from the lot and
adjacent properties are directed off the lot and away from
foundations, floor slabs, and slope tops. Even when these
measures are taken, a shallow ground water or surface water
condition can and may develop in areas where no such water
condition existed prior to site development; this is partic-
ularly true where a substantial increase in surface water
infiltration results from landscape irrigation.
LIMITATIONS
The elevations of compaction tests shown as finished
grade (FG) tests on the attached forms correspond to the
Broadmoor Homes Jpnc.
May 13, 1981
Project No. 592072-FC02
Page 5
W4|llward-Clyde Consultants
elevations shown on the "Grading Plan for Carlsbad
Tract 77-2, Unit 5," dated March 4, 1980, revised April 10,
1981, prepared by Roy L. Klema Engineers, Inc. Elevations
and locations used in this report were based on field
surveys done by others.
The soil conditions described in this report are based
on observations and periodic testing. This office should be
notified of any indications that soil conditions are not as
described herein. We will inspect foundation excavations
for each lot if we are requested to do so.
For this report, rough lot grade is defined as that
grade set in the field by the grade checker from reference
stakes established by the surveyor, and represents rough
grade at the time we were inspecting the grading operation.
Likewise, the indicated depths of placement of nonexpansive
soil were based on the measurements made by and grades set
by the contractor's grade checker.
The conclusions and opinions drawn from the test
results and site inspections apply only to our work with
respect to grading, and represent conditions at the date of
our final inspection. We will accept no responsibility for
any subsequent changes made to this site by others, or by
uncontrolled action of water, or by failure of others to
properly repair damages by uncontrolled action of water.
If you have any questions, please give us a call.
Very truly yours.
WOODWARD-CLYDE CONSULTANTS
Richard P. While
R.E. 21992
RPW/DT/rs
Attachments
(4)
JOti NAME
JOB NUMBER
DATES COVEHEO
OMPACJION TEST RESULTS ^
WOODRIDGE PHASE II, UNIT #5
592072-FCO2 (BUTTRESS FILL-PREVIOUS LOT NUMBERS)
MARCH 10, 1981 THROUGH MARCH 26, 1981
-mar
NUMBCn
B-l
B-2
B-3
B-4
B-5
B-6
B-7
B-8
B-9
B-10
B-11
B-12
B-13
B-14
B-15
B-16
B-17
B-18
B-19
B-20
B-21
B-22
B-23
B-24
B-25
B-26
B-27
B-28
B-29
B-30
B-31
B-32
B-33
B-34
B-35
B-36
NKTCtT
or
LOCATION
B-12
LOT 139
LOT 136
WEST OF LOT 138
136
II It II 137
WEST OF LOT 135
138
136
WEST OF LOT 135
" " 137
136
136
" " 136
WEST OF LOT 134
•135
" " " 134
" " 134
WEST OF LOT 135
" " 133
' 133
" " 132
II II II X33
WEST OF LOT 134
136
" " 132
LOT 130
LOT 131
LOT 132
LOT 130
LOT 134
LOT 133
LOT 132
LOT 130
LOT 134
LOT 131
LOT 133
CLCVATION
Of TItT
94 i
98'
100'
104'
108'
86'
116'
120'
DATE REPORTED 5/14/81
PAGE B-l Or B-2
MOKTUm
CONTINT
% DKT WT.
11.7
14.3
11.7
13.6
13.0
13.6
11.7
13.0
PICUO
OCNtlTr
PCF
111.8
112.6
114. 3
115,4
116.0
115. 1
114.4
113.4
LAIOHATOMV KCLATIVI
DINIirV COMrACTIOM
PCP % or LAS. DIN*.
123.0
123.0
123.0
123.0
123.0
123.0
123.0
123.0
90
91
92
•93
94
93
93
92
124' 11.7 114.4 126.0 90
128' 13.0 117.3 128.5 91
132' 11.7 117.8 128.5 91
136' 13.6 108.2 126.0 85
136' 13.0 118.1 126.0 93
92' 12. 3 115. 1 123.0 93
128' 13.0 111.0 123.0 90
96' 13.6 112.2 123,0 91
102' 11.7 118.3 128.0 92
126' 12.3 118.3 128, 5 92
112' 12.3 120.6 128,5 93
118' 12.3 117.1 128.5 91
122' 11.7 119.8 128,5 93
130' 10. 5 123.1 128.5 95
136' 12.3 122. 3 128. 5 95
140' 11.7 122. 1 128.5 95
142' 11.7 118.3 128. 5 92
70* 11.1 112.6 123.0 91
74 • 10.5 118.5 126.0 94
78' 12. 3 115.0 126.0 91
82 ' 13.6 114.9 123.0 93
78* 13.0 112.0 123.0 91
84' 13.6 114.0 123.0 92
86' 13.0 116. 3 126.0 92
90' 12.3 118.3 126.0 93
94 • 11.7 118.0 121. 5 93
98' 13.6 115.4 126.5 93
102' 12. 3 117.1 126. 5 92
5/11/81
Woodward-Clyde Consultants
CONSULTi*>S CNGIHKCNt bCOLOCrSTft
»NO KM « <*ONMCNT*L ftClCNTlST*
PACTION TEST RESULTS
Joa NAME WOODRIDGE PHASE II, UNIT #5
JOB NUMBER 592072-FC02 (BUTTRESS FILL)
DATE*COVERED MARCH 10, 1981 THROUGH MARCH 26, 1981
DATE REPORTED 5/14/81
PAGE B-2 B-2
DAT! T««T
NUMBER
nlTCIT
or
LOCATION CLCVATION
or TC«T
HOIITUm
CONTINT
% OUT WT.
riCLO
DINalTY rcr
LASOHATOnT
OINIITT
rcr
• ILATIVI
COMrACTION
% or LA*. DKNI.
lAR 24 B-37 LOT 130 106' 13.0 116.7 126.5 92
B-38 LOT 132 108' 12. 3 117.3 126.5 92
B-39 LOT 131 112' 11.7 118.3 126.5 93
lAR 25 , B-40 SOUTH LOT 132 116' 13.0 120.4 126.5 94
B-41 II " 130 120' 13,6 122.0 126.5 96
B-42 11 " 131 124" 12.3 114,4 126.5 90
B-43 11 " 130 128' 12,3 117.8 126.5 93
lAR 26 B-44 SOUTH LOT 132 132' 13.6 119.7 126.0 95
B-45 II " 131 136' 11.7 116.8 126.0 92
B-46 II " 130 140' 12,3 117.1 126.0 92
It 5/11/81 Woodward-Clyde Consultants
LONSULtINC CNCINCLftS CCOLOCI»TS
Joa NAME WOODRIDGE PHASE W! UNIT 5
JOB NUMBER 592072-FC02
:.OMPACTION TEST RESULT ^
tINTT ^
DATE* COVERED DECEMBER 23, 1980 THROUGH APRIL 30, 1981
DEC 23
DEC 24
DEC 29
DEC 30
DEC 31
JAN 5
JAN 6
JAN 8
JAN 9
JAN 27
FEB 2
JAN 3
T«»T
NUMIcn
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
•CTIIT
or
LOT 130*
PRIVATE ST., OPP. L-133*
PRIVATE ST., OPP, L-131
L-134
L-137
PRIVATE ST,, OPP. L-132*
L-132
L-136
PRIVATE ST., OPP. L-131*
LOT 134*
PRIVATE ST., OPP. L-133
LOT 130*
PRIVATE ST., OPP. L-131
•L-133
PRIVATE ST., LOT 130*
LOT 130
LOT 136
16 LOT 130
LOT 130*
LOT 132*
LOT 134*
LOT 137
LOT 134
LOT 135
LOT 138
LOT 141
LOT 139
LOT 137
LOT 139
LOT 140
LOT 142
LOT 133*
LOT 130
LOT 133
CLCVATION
or TC»T
52*
60'
72'
76"
80'
64'
76'
82'
58'
66'
80'
DATE REPORTED 5/14/81
PAGE OF
MOIITUni
CONTINT
% OUT WT.
10.5
11.7
13.0
10.5
10. 5
11.7
12. 3
13.0
10.5
11.1
riiLO
DINIITT
rcr
119.5
114.4
115.2
119.9
116.3
115.9
113.8
119.9
113.4
119.3
112.6
LAaOIIATORT KCLATIVI
oiNiinr COMrACTION
% or LA*, DIM:
126,0
126.0
126.0
126.0
126.0
126.0
126.0
126.0
123.0
123,0
123.0
94
90
91
95
92
91
90
95
92
96
91
56' 13.0 124,9 126.0 99
64' 13,6 125,3 126.0 99 66' 13.0 124.2 126.0 98
62' 10,5 123,1 126.0 97
72' 6.0 109.2 123.0 88
76' 10,5 110.2 123.0 90
72' 11.7 110.8 123.0 90
66' 11.7 115.8 123,0 94
68' 11.7 114.8 123,0 93
70' 12.3 117.8 123,0 95
82' 11.7 114.6 123.0 93
80' 11.1 112,4 123.0 91
82' 13.6 120.8 126.0 95
86' 13.0 112.8 123. 5 91
88' 12.3 111.3 123.5 90
90' 11.7 111.9 123. 5 90
90' 13.0 113.3 123.5 91
92 • 13.6 112.2 119.5 93
94 ' 13.0 111.1 119.5 93
102' 13,0 113.4 119.5 94
72' 13.6 122.0 126.0 96 74 • 13.0 120.4 126.0 95 76 ' 12.3 115.6 126.0 91
PREVIOUS LOT NUMBERS
wt 5/8/81 Woodward-Clyde Consultants
CON&UITINC CNCINtEMl CCOLOCIftTi
**<D KNVinONMCNTAL tCICNTItTl
ATA
Joa NAME
JOB NUMBER
WOODRIDGE PHASE II, UNIT 5
MPACTION TEST RESULTS.
DATE REPORTED 5/14/81
592072-FCO2
DATE* COVERED DECEMBER 23, 1980 THROUGH APRIL 30, 1981 PACE 2 OF
DAT! T«»T
NUMSCK
nCTKT
or
LOCATION CLEVATtON
or TEST
HOIITUni
CONTINT
% 0«T WT.
riiLO
DCNaiTT rcr
LAIOKATORY OINIITT rcr
KCLATIVI
COMrACTION
% or LAC. DIM*.
FEB 25 35 LOT 140 96' 12.3 115.1 123.0 93
36 LOT 138 92' 11.7 118. 3 128.0 92
37 LOT 141 100' 14.3 112.6 123.0 91
38 LOT 139 94 ' 13.0 114.2 123.0 . 92
39 LOT 131 80' 12, 3 115.1 123.0 ' 93
MAR 10 40 LOT 132 82' 11.7 114.3 123.0 92
41 LOT 134 86' 12.3 115.1 123.0 93
42 LOT 136 90' 13.0 116.6 123.0 94
APR 17 43 LOT 130 84 • 13,0 112.8 123.0 91
44 LOT 132 86' 11,7 118.0 123.0 95
APR 20 45 LOT 135 88' 13.0 112.3 123.0 91
46 LOT 140 100' 12.3 116.1 123.0 94
APR 21 47 LOT 141 FG 101.3' 13.0 116,8 123.0 94
48 LOT 140 FG 101.3' 13.6 114.4 123.0 93
49 LOT 139 FG 96.3' 13.6 114.0 123.0 92
50 LOT 138 FG 96.3' 12. 3 115,9 123.0 94
APR 22 51 LOT 137, LOWER FG 92.0' 13.0 112.8 123.0 91
52 LOT 137, UPPER FG 101.0* 13.6 113,0 123.0 91
53 LOT 136, LOWER FG 92.0' 13.0 113.9 123.0 92
54 LOT 136, UPPER FG 101.0' 11.7 111.7 123.0 90
APR 27 55 LOT 135, LOWER FG 90.0' 12,3 119.0 128.5 92
56 LOT 135, UPPER FG 99.0* 13.6 120,5 128.5 93
57 LOT 134, UPPER FG 99.0' 13.6 124,2 128.5 96
58 LOT 134, LOWER FG 90.0' 13,0 119.2 128.5 92
APR 28 59 LOT 133, LOWER FG 88.0' 13.0 117.2 128.5 91
60 LOT 133, UPPER FG 97.0' 13.6 119. 3 128.5 92
61 LOT 132, UPPER FG 97.0' 14.3 117.1 128.5 91
62 LOT 132, LOWER FG 88.0' 13.0 112.9 128.5 87
APR 29 63 LOT 131, LOWER FG 85.0' 11.7 116.5 128.5 90
64 LOT 130, LOWER FG 85.0' 12. 3 118.5 128.5 92
65 62 LOT 132, LOVVER FG 88.0 • 13.0 117.1 128.5 91
APR 30 66 LOT 131, UPPER FG 94.0' 12. 3 118.9 128.5 92
67 LOT 130, UPPER FG 94.0-13.6 115.9 128.5 90
68 LOT 142 FG 105.0' 13,0 114.0 123.0 92
PREVIOUS LOT NUMBERS
wt 5/8/81
Woodward-Clyde Consultants
CONSULTING tNGIHCCNt btOLOCISTS
*MO CN Vt MONMLNT AL «CICNTI&T«
iCMPACTION TEST RESULTi
JOJ NAME WOODRIDGE PHASE II, UNIT 5
JOB NUMBER 592072-FCO2 (STREET)
DATE* COVERED DECEMBER 22, 1980 THROUGH APRIL 26, 1981
DATE REPORTED 5/14/81
PAGE S-1 S-1
TCIT
NUM*CII
RITCIT
or
CLCVATION
or TCST
MOISTURC
CONTINT
% DRY WT.
ricLO
DINIITT rcr
LABORATORY
DIN*ITT
rcr
RILATIVI
COMrACTION
% or LA*. OCN*.
DEC 22 S-1 MONROE ST.,OPP. L-130* 50' 10.5 116.6 126.0 92
S-2 tl It 11 L-131* 56' 11.7 118.9 126.0 94
DEC 24 S-3 MONROE ST.,OPP, L-130 70' 10.5 118.5 126.0 . 94
DEC 29 S-4 MONROE ST,, OPP . L-137 78* 12,3 115.8 126.0 91
DEC 31 S-5 MONROE ST,,OPP. L-133* 64* 10,5 114.1 126.0 90
JAN 5 S-6 MONROE ST.,OPP. L-133 76' 11,1 115.6 126.0 91
JAN 6 S-7 MONROE ST.,OPP. L-138 84' 12, 3 115,1 126,0 91
APp 26 S-8 PRIVATE ST,,OPP . L-140 95' 11,1 116. 3 128,5 90 APp
S-9 M II 11 L-137 88" 13.6 118,1 128.5 91
S-IO 11 II II L-132 82' 13.0 118.4 128.5 92
* PREVIOUS LOT NUMBER
Wt 5/11/81
Woodward-Clyde Consultants
CONSTINC CNCINEKnS CCOLOClKTft
• NO IN . IHONMENT AL »C(INTI4T»
PLASTICITY CHARACTERISTICS 1 2 3
Liquid Limit, % 32 22 24
Plasticity Index, % 16 3 12
Classification by Unified Soil
Classification System SC SM SC
150
ZERO AIR VOIDS CURVES
-2.80 SG
2.70 SG
2.60 SG
2.50 SG
130
120
110
100
COBBLES GRAVEL SANO SILT i CLAY COBBLES = 1 ' c| m f SILT i CLAY
100
'i 80
< 60
lii 40 o cc
20
3
1
2
\^ \
- -1
-J. 1. 1 _L,1, 1 1
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 1 2 3
Dry Density, pcf _
Initial Water Content, % ---
Final Water Content, % --—
Apparent Cohesion, psf -_
Apparent Friction Angle, degrees ---
SWELL TEST DATA 1 2 3
Initial Dry Density, pcf --118
Initial Water Content, % -_ 11
Final Dry Density, pel -— 116
Final Water Content, % --15
Load, psf --160
Swell, percent --1.5
SAMPLE LOCATION
1 LOT 130, CANYON ROTTnw
2 CUT LOTS 123-128
3 CUT LOTS 90-98
10 20 30
LABORATORY COMPACTION TEST
LABORATORY COMPACTION
TEST METHOD: ^STM 61S57 70 A
FILL SUITABILITY TESTS
WOODRIDGE PHASE II, UNIT 2
DRAWN BY: J CHECKED BY:jVX2f^ PROJECT NO: 592072-FC02 | DATE: 4/13/81 1 FIGURE NO: 1
WT 3/30/81 WOODWARD-CLYDE CONSULTANTS
PLASTICITY CHARACTERISTICS 4 5 6
Liquid Limit, % -44 34
Plasticity Index, % NP 27 18
Classification by Unified Soil
Classification System SM SC SC
150
140
130
120
110
100
ZERO AIR VOIDS CURVES
•2.80 SG
2.70 SG
2.60 SG
2.50 SG
COBBLES GRAVEL SAND SILT ( CLAY c f cl m 1 f SILT ( CLAY
100
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 4 5 6
Dry Density, pcf --
Initial Water Content, % ---
Final Water Content, % ---
Apparent Cohesion, psf ---
Apparent Friction Angle, degrees ---
SWELL TEST DATA 4 5 6
Initial Dry Density, pcf 109 111 114
Initial Water Content. % 11 11 10
Final Dry Density, pcf 109 108 112
Final Water Content, % 15 18 16
Load, psf 160 160 160
Swell, percent .01 3.1 1.5
SAMPLE LOCATION
4 CUT LOTS 36-39
5 LOTS 42 S 43
6 BUTTRESS CUT W. OF
10 20 30
LABORATORY COMPACTION TEST
LOTS 130-139
LABORATORY COMPACTION^
ASTM D 1557 70 A TEST METHOD:
FILL SUITABILITY TESTS
WOODRIDGE PHASE II, UNIT 2
DRAWNBY: ch | CHECK ED BY: ,\WlL} PROJECT NO: 592072-FCO2 DATE: 4/13/81 FIGURE NO: 2
WT 3/30/81 WOODWARD-CLYDE CONSULTANTS
PLASTICITY CHARACTERISTICS 7
Liquid Limit, % -
Plasticity Index, % NP
Classification by Unified Soil
Classification System SM
150
ZERO AIR VOIDS CURVES
-2.80 SG
2.70 SG
2.60 SG
2.50 SG
COBBLES GRAVEL SAND
c f c| m i f SILT k CLAY
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 7
Dry Density, pcf -
Initial Water Content, % -
Final Water Content, % -
Apparent Cohesion, psf -
Apparent Friction Angle, degrees -
SWELL TEST DATA
7
Initial Dry Density, pcf 115
Initial Water Content. % 9
Final Dry Density, pcf 115
Final Water Content, % 14
Load, psf 160
Swell, percent 0.4
SAMPLE LOCATION
7 BUTTRESS LOTS 130-139
10 20 30
LABORATORY COMPACTION TEST
LABORATORY COMPACTION
TEST METHOD: ASTM D 1557 70 A
FILL SUITABILITY TESTS
WOODRIDGE PHASE II, UNIT 2
DRAWN BY: 1 CHECKED BY: Vie£| PROJECT NO: 592072-FC02 DATE: 4/13/81 1 FIGURE NO: 3
WT 3/30/81 WOODWARD-CLYDE CONSULTANTS
PLASTICITY CHARACTERISTICS 1 2 3
Liquid Limit, % 27 33 28
Plasticity Index, % 6 15 10
Classification by Unified Soil
Classification System 3M-SC SC SC
150
140
ZERO AIR VOIDS CURVES
-2.80 SG
2.70 SG
2.60 SG
2.50 SG
130
120
110
100
COBBLES GRAVEL SAND
c 1 f c| m f SILT ( CLAY
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 1 2 3
Dry Density, pcf --—
Initial Water Content, % --—
Final Water Content, % --—
Apparent Cohesiori, psf ---
Apparent Friction Angle, degrees ---
SWELL TEST DATA 1 2 3
Initial Dry Density, pcf -107 114
Initial Water Content, % -12 10
Final Dry Density, pcf -100 113
Final Water Content, % -23 14
Load, psf -160 160
Swell, percent 6.9 0.3
SAMPLE LOCATION
X CUT SLOPE,S.W. COR. SITE
2 S.W. CORNER
3 BUTTRESS CUT, S.W. COR.
10 20 30
LABORATORY COMPACTION TEST
40 LABORATORY COMPACTION
TEST METHOD: ASTM D 1557 70 A
FILL SUITABILITY TESTS
PUEBLO DEL ORO
DRAWN BY: ch 1 CHECKED BYi^^gf^ PROJECT NO: 59331W-FC01 DATE: 5/14/fli 1 FIGURE NO:
Wt 5/13/81 WOODWARD-CLYDE CONSULTANTS
PLASTICITY CHARACTERISTICS 4 5 6
Liquid Limit, % 34 35 46
Plasticity Index, % 17 18 27
Clasiification by Unified Soil
Classification System SC CL CL
150
140
130
120
110
100
ZERO AIR VOIDS CURVES
-2.80 SG
2.70 SG
2.60 SG
2.50 SG
COBBLES GRAVEL SANO SILT t CLAY COBBLES c f c m i f SILT t CLAY
100 ING 80 ISS PA 60
1-
z UJ 40 o oc UJ 20 0. 20
0
c --A X
o —
A
—5 \
-L- 1. J.. , JUL-1 1 1 1
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 4 5 6
Dry Density, pcf -— _
Initial Water Content, % --
Final Water Content, % ---
Apparent Cohesion, psf ---
Apparent Friction Angle, degrees ---
SWELL TEST DATA
4 5 6
Initial Dry Density, pcf 114 111 102
Initial Water Content, % 10 13 16
Final Dry Density, pcf 111 106 94
Final Water Content, % 17 21 29
Load, psf 160 160 160
Swell, percent 2.7 4.8 9.2
SAMPLE LOCATION
4 HOSP. WAY BUTTRESS
5 NORTH SIDE. LOT 10
6 LOT 11
10 20 30
LABORATORY COMPACTION TEST
LABORATORY COMPACTION
TEST METHOD: A.qTM n 1557 70 A
FILL SUITABILITY TESTS
PUEBLO DEL ORO
DRAWN BY: ch 1 CHECKED BY:^t^c| PROJECT NO: 59331W-FC01 OATE: 5/14/81 1 FIGURE NO: 2
Wt 5/14/81 WOODWARD-CLYDE CONSULTANTS