HomeMy WebLinkAbout3821; LAKE CALAVERA IMPROVEMENTS - CIP 3821; GEOTECHNICAL EVALUATION - DAM IMPROVEMENTS; 2002-11-19CIP 3821 - Soils Report
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I ,• I' !eotechnical and Environmental Sciences Consultants
GEOTECHNICAL DESIGN EVALUATION
LAKE CALAVERA IMPROVEMENTS
CARLSBAD, CALIFORNIA
PREPARED FOR:
CGvL Engineers
6 Hughes, Suite 100
Irvine, California 92618
PREPARED BY:
Ninyo & Moore Geotechnical and Environmental Sciences Consultants
5710 Ruffin Road
San Diego, California 92123
November 19, 2002
Project No. 104468001
571 0 Ruffin Road • San Diego. California 92123 • Phone (858) 576-1000 • Fax (858) 576-9600
San Diego • INine • Ontario • Los Angeles • Oakland • Las Vegas • Salt Lake City • Phoenix
(/J ! w DATE DRILLED · . BORING NO. SYMBOL SAMPLES ..J a. ii:' ...
:. 0 z
Z' < .... ~ le:. 0 GROUND ELEVATION SHEET I OF I ., (/J 0 ~ en 0 ~ ..J ,lg. >-~ w 0 i 0: CD Q ti ! ;,: ::, (/J :. u. . METHOD OF DRILLING ... ... z >--(/J a. (/J w (/J • w -" iii 0 5 0 (/J (/J ::, .
0 ~-~ ..J :'.'i DRIVE WEIGHT DROP CD :. ~ 0 0 0 SAMPLED BY LOGGED BY REVIEWED BY
DESCRIPTION/INTERPRETATION
0
•,
Solid _line d,enotes unit change.
· .. ' ' --Dashed line denotes material change. !
I '
i -Modified split-barrel drive sampler. --No recovery with modified split-barrel drive sampler.
' ---
5---~ Seepage .
. .. ..,:._ ¥ Groundwater encountered during drilling.
' ~ Groundwater measured after drilling.
·>-
Sample retained by others.
+--
. ·-
Standard Penetration Test (SP1). --
IO-f--
I No recovery with a SPT. -
f--
·f-Shelby tnbe sample. Distance pushed in inches/length ofsample recovered X:M/XX in inches.
·f--
\ No recovery with Shelby tnbe sampler. --f--
•'
15-1-Bulle sample.
--
-
' Continuous Push Sample.
--
The total depth line is a solid line that is drawn at the bottom of the
boring.
'"
I
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BORING LOG
EXPLANATION OF BORING LOG SYMBOLS
PROJECT NO. I DATE I FIGURE
SYMSAMP Rev. 10/01 A-1
' I
EXPANSION INDEX TEST RESULTS
SAMPLE SAMPLE INITIAL COMPACTED FINAL
LOCATION DEPTH MOISTURE DRY DENSITY MOISTURE
!FTl {%1 !PCFl {%1
8-1 1.5-5.0 8.2 115.3 15.2
PERFQRMED IN GENERAL ACCORDANCE WITH UBC STANDARD 18-2
PERFORMED IN GENERAL ACCORDANCE WITH D 4829-95
VOLUMETRIC
SWELL
IINl
0.0041
EXPANSION EXPANSION
INDEX POTENTIAL
4 Very Low
.....
EXPANSION INDEX TEST RESULTS
_JYln9o&}(loore_ Lake Calavera
Dam Improvements
Carlsbad, California
j PROJECT NO. DATE ~ I 104468001 11/02 3
EIB1@1,S-5.xts
CGvL Engineers
Lake. Calavera Improvements, Carlsbad
TABLE OF CONTENTS
November 19, 2002
Project No. 104468001
Page
1. GENERAL ......................... ; ...................................................................................................... l
2. OBLIGATIONS OF PARTIES ......... , ...................................................................................... 2
3. · SITE PREPARATION ............................................................................................................. 3
4. REMOVALS AND EXCAVATIONS .......................................................... : ......................... .4
5. COMP ACTED FILL ............................................................................................................... .4
6. OVERSIZED MATERIAL ...................................................................................................... 7
7. SLOPES .................................................................................................................................... 8
:s. · TRENCH BACKFILL ............................................................................................................ 11
9. DRAINAGE ............... : .......................................................................................................... ,12
10. SITEPROTECTION .......................................................... : ................................................... 13
11. DEFINITIONS OF TERMS ................................................................................................... 16
Figures
Figure A -Fill Slope Over Natural Ground or Cut
Figure B -Transition and Undercut Lot Details
Figure C -Canyon Subdrain Detail
Figure D -Oversized Rock Placement Detail
Figure E -Slope Drainage Detail
Figure F -Shear Key Detail
Figure G -'-Drain Detail
4468001 TI'PICAL EARTHWORK GUIDELINES.doc
l(ln90&/(toore.
Rev. 5/02
I -
CGvL Engineers
Lake Calavera Improvements, Carlsbad
November 19, 2002
Project No. 104468001
SOIL:
STABILIZATION FILL:
SUBDRAIN:
. TAILINGS:
TERRACE:
TOPSOIL:
WINDROW:
4468001 TYPICAL EARTHWORK GUIDELINES.doc
Naturally occurring deposits of sand, silt, clay, etc., or com-
binations thereof.
A fill mass, the configuration of which is typically related to
slope height and is specified by the standards of practice for
enhancing the stability of locally adverse conditions. A
minimum stabilization fill is normally specified byminimurn
. key width and depth and by maximum backcut angle. A sta-
bilization fill may or may not have a back drainage system
specified.
Generally a pipe-and-gravel or similar drainage system
placed beneath a fill along the aligrunent of buried canyons
or former drainage channels .
Non-engineered fill which accumulates on or adjacent to
equipment haul roads.
A relatively level bench constructed on the face of a graded
slope surface for drainage control and maintenance purposes.
The upper zone of soil or bedrock materials, which is usually
dark in color, loose, and contains organic materials.
A row of large rocks buried within engineered fill in accor-
dance with guidelines set forth by the geotechnical consultant.
19
l(ln90&1(\oo~e
Rev. ~/02