HomeMy WebLinkAboutRS_Geotechnical_Study.pdfSITE
Environmental Earth Sciences
Terra
Associates, Inc.
Consultants in Geotechnical Engineering
Geology and Figure 1
VICINITY MAP
0 2000 4000
APPROXIMATE SCALE IN FEET
Proj.No. T-7677 Date: JULY 2017
RENTON, WASHINGTON
VANDERMAY
TP-1TP-2TP-3TP-4TP-5TP-6TP-7TP-8TP-9TP-10TP-11TP-12TP-13TP-14TP-15TP-16TP-17TP-18REFERENCE:REFERENCE ONLY AND SHOULD NOT BE USED FORDESIGN OR CONSTRUCTION PURPOSES.DIMENSIONS ARE APPROXIMATE. IT IS INTENDED FORNOTE:THIS SITE PLAN IS SCHEMATIC. ALL LOCATIONS ANDConsultants in Geotechnical EngineeringTerraAssociates, Inc.Geology andEnvironmental Earth SciencesEXPLORATION LOCATION PLANFigure 2LEGEND:0100200APPROXIMATE SCALE IN FEETSITE PLAN PROVIDED BY BARGHAUSEN CONSULTING ENGINEERS.APPROXIMATE TEST PIT LOCATIONProj.No. T-7677Date: JULY 2017RENTON, WASHINGTONVANDERMAY
Proj.No. T-7677 Date: JULY 2017
RENTON, WASHINGTON
VANDERMAY
Environmental Earth Sciences
Terra
Associates, Inc.
Consultants in Geotechnical Engineering
Geology and
TYPICAL SLOPE KEY AND BENCH DETAIL
Figure 3
NOT TO SCALE
6' (MIN.)
2
1
EXISTING
SLOPE TOE
NOTES:
1)STRUCTURAL FILL SHALL BE COMPACTED TO A MINIMUM OF 95%
OF ASTM D 698 MAXIMUM DRY DENSITY VALUE.
TOE OF NEW
FILL EMBANKMENT
KEYWAY
6' (MIN.)
2' (MIN.)
1
1
STRUCTURAL FILL
(SEE NOTE 1)
TYPICAL SLOPE BENCH
CLEARED AND STRIPPED
NATIVE GROUND
1
1
2)DRAINS SHALL CONSIST OF 6" DIA. PERFORATED PVC PIPE ENVELOPED
IN 1 cu ft OF 3/4" WASHED GRAVEL. DRAIN PIPE SHALL BE DIRECTED TO
KEYWAY DRAIN
(SEE NOTE 2)
THE STORM DRAIN SYSTEM OR APPROVED POINT OF DISCHARGE.
(SEE NOTE 3)
3)ADDITIONAL BENCHES AND BENCH DRAINS MAY BE REQUIRED
BASED ON FIELD EVALUATION BY THE GEOTECHNICAL ENGINEER.
12"
COMPACTED
STRUCTURAL FILL
EXCAVATED SLOPE
(SEE REPORT TEXT
FOR APPROPRIATE
INCLINATIONS)
SLOPE TO DRAIN
12" MINIMUM 3/4"
MINUS WASHED
GRAVEL
3" BELOW PIPE
12" OVER PIPE
4" DIAMETER PERFORATED PVC PIPE
SEE NOTE
6"(MIN.)
NOT TO SCALE
NOTE:
MIRADRAIN G100N PREFABRICATED DRAINAGE PANELS OR SIMILAR
PRODUCT CAN BE SUBSTITUTED FOR THE 12-INCH WIDE GRAVEL
DRAIN BEHIND WALL. DRAINAGE PANELS SHOULD EXTEND A MINIMUM
OF SIX INCHES INTO 12-INCH THICK DRAINAGE GRAVEL LAYER
OVER PERFORATED DRAIN PIPE.
Environmental Earth Sciences
Terra
Associates, Inc.
Consultants in Geotechnical Engineering
Geology and
TYPICAL WALL DRAINAGE DETAIL
Figure 4Proj.No. T-7677 Date: JULY 2017
RENTON, WASHINGTON
VANDERMAY
Environmental Earth Sciences
Terra
Associates, Inc.
Consultants in Geotechnical Engineering
Geology and
MAJOR DIVISIONS LETTER
SYMBOL TYPICAL DESCRIPTION
GRAVELS
More than 50%
of coarse fraction
is larger than No.
4 sieve
Clean
Gravels (less
than 5%
fines)
GW Well-graded gravels, gravel-sand mixtures, little or no fines.
GP Poorly-graded gravels, gravel-sand mixtures, little or no fines.
Gravels with
fines
GM Silty gravels, gravel-sand-silt mixtures, non-plastic fines.
GC Clayey gravels, gravel-sand-clay mixtures, plastic fines.
SANDS
More than 50%
of coarse fraction
is smaller than
No. 4 sieve
Clean Sands
(less than
5% fines)
SW Well-graded sands, sands with gravel, little or no fines.
SP Poorly-graded sands, sands with gravel, little or no fines.
Sands with
fines
SM Silty sands, sand-silt mixtures, non-plastic fines.
SC Clayey sands, sand-clay mixtures, plastic fines.
SILTS AND CLAYS
Liquid Limit is less than 50%
ML Inorganic silts, rock flour, clayey silts with slight plasticity.
CL Inorganic clays of low to medium plasticity. (Lean clay)
OL Organic silts and organic clays of low plasticity.
SILTS AND CLAYS
Liquid Limit is greater than 50%
MH Inorganic silts, elastic.
CH Inorganic clays of high plasticity. (Fat clay)
OH Organic clays of high plasticity.
HIGHLY ORGANIC SOILS PT Peat.COARSE GRAINED SOILSMore than 50% material largerthan No. 200 sieve sizeFINE GRAINED SOILSMore than 50% material smallerthan No. 200 sieve sizeDEFINITION OF TERMS AND SYMBOLS
COHESIONLESSCOHESIVE Standard Penetration
Density Resistance in Blows/Foot
Very Loose 0-4
Loose 4-10
Medium Dense 10-30
Dense 30-50
Very Dense >50
Standard Penetration
Consistancy Resistance in Blows/Foot
Very Soft 0-2
Soft 2-4
Medium Stiff 4-8
Stiff 8-16
Very Stiff 16-32
Hard >32
2" OUTSIDE DIAMETER SPILT SPOON SAMPLER
2.4" INSIDE DIAMETER RING SAMPLER OR
SHELBY TUBE SAMPLER
WATER LEVEL (Date)
Tr TORVANE READINGS, tsf
Pp PENETROMETER READING, tsf
DD DRY DENSITY, pounds per cubic foot
LL LIQUID LIMIT, percent
PI PLASTIC INDEX
N STANDARD PENETRATION, blows per foot
UNIFIED SOIL CLASSIFICATION SYSTEM
Figure A-1Proj.No. T-7677 Date: JULY 2017
RENTON, WASHINGTON
VANDERMAY