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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> CLEAN GRAVEL GW 1\DCTUR QED GRAVEL,GRAVEL SAND <br /> GRAVEL WITH LESS THAN <br /> MORE THAN HALF S% FINES Gp f.r,f.� POORLY GRADED GRAVEL,GRAVEL-SAND <br /> r.r.r.r <br /> OF THE COARSE MIXTURE <br /> FRACTION IS LARGERGM SILTY GRAVEL,GRAVEL-SAND-SILT <br /> THAN No.4 GRAVEL WITH MIXTURE <br /> SIEVE SIZE OVER 12% FINES <br /> Z GC CLAYEY GRAVEL,GRAVEL-SAND-CLAY <br /> .., MIXTURE <br /> WELL GRADED SAND,GRAVELLY SAND <br /> C7 SAND CLEAN SAND SW •tirtirti:ti <br /> r.r.f. <br /> w <br /> WITH LESS THAN �~ '' � ~ POORLY GRADED SAND,GRAVELLY <br /> con MORE THAN HALF 5% FINES Sp <br /> QOF THE COARSE SAND <br /> FRACTION IS SMALLER SILTY SAND,GRAVEL-SAND-SILT <br /> U THAN No.4 SAND WITH . . . .ITH MIXTURE <br /> SIEVE SIZE OVER 12% FINES SC CLAYEY SAND,GRAVEL-SAND-CLAY <br /> MIXTURE <br /> ML INORGANIC SILT,ROCK FLOUR,SANDY OR <br /> w CLAYEY SILT WITH LOW PLASTICITY <br /> SILT AND CLAY INORGANIC CLAY OF LOW TO MEDIUM <br /> CL PLASTICITY,GRAVELLY,SANDY OR SILTY <br /> oN LIQUID LIMIT LESS THAN 50 CLAY(LEAN) <br /> 0 <br /> ORGANIC CLAY AND ORGANIC SILTY CLAY <br /> Q V OL i i i a i OF LOW PLASTICITY <br /> z � <br /> INORGANIC SILT,MICACEOUS OR <br /> CG MH DIATOMACEOUS FINE SANDY OR SILTY SOIL, <br /> ELASTIC SILT <br /> w CLAY AND <br /> Z � SILT INORGANIC CLAY OF HIGH PLASTICITY, <br /> p LIQUID LIMIT GREATER THAN 50 CH GRAVELLY,SANDY OR SILTY CLAY(FAT) <br /> OH ORGAMC CLAY OF MEDIUM TO HIGH <br /> PLASTICITY,ORGANIC SILT <br /> HIGHLY ORGANIC SOILS PTPEAT AND OTHER HIGHLY ORGANIC SOILS <br /> KEY TO TEST DATAShear Strength,psf <br /> F r Confining Pressure,psf <br /> EI -Expansion Index TxUU Unconsolidated Undrained Triaxial 320 (26100) <br /> Consol -Consolidation TxCU -Consolidated Undrained Triaxial 320 (2600) <br /> LL Liquid Limit(in%) DSCD Consolidated Drained Direct Shear 2750 (2000) <br /> PL Plastic Limit(in%) FVS Field Vane Shear 470 <br /> PI Plasticity Index LVS -Laboratory Vane Shear 700 <br /> UC Unconfined Compression 2000 ' <br /> SA Sieve Analysis UC(P) -Laboratory Penetrometer 700 ' <br /> Gs Specific Gravity <br /> N -"Undisturbed Sample" <br /> Q -Bulk Sample <br /> Notes:(1) All strength tests on 2.8"or 2.4"diameter samples unless otherwise indicated 'Compressive Strength <br /> Project: Weber Ranch PH7 Environmental Figure 7 <br />