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�r <br /> lam. <br /> i <br /> FO <br /> MAJOR DIVISIONS <br /> TYPICAL NAMES <br /> GW WELL-GRADEO GRAVELS,GRAVEL•SAND <br /> CLEAN GRAVELS WITH •'• +': MIXTURES <br /> ' GRAVELS LITTLE OR NO FINES <br /> GP ;'' POORLY GRADED GRAVELS,GRAVEL-SAND <br /> ',•j:7�. MIXTURES <br /> MORE THAN HALF <br /> I p i COARSE FRACTION <br /> (,r) Is LARGER THAN GM SILTY GRAVELS,POORLY GRADED GRAVEL- <br /> 0 No,4 SIEVE S!ZE GRAVELS WITH OVER SAND-SILT MIXTURES <br /> Lu 12%FINES <br /> N^ "' GC CLAYEY GRAY XTURRLY GRADED GRAVEL- <br /> a <br /> SW :.�• WELL-GRADED SANDS,GRAVELLY SANDS <br /> r.. LU <br /> CLEAN SANDS WITH • <br /> th SANDS LITTLE OR NO FINES • <br /> t I Q SP ' ••' POORLY GRADED SANDS,GRAVELLY SANDS <br /> MORE THAN HALF <br /> O COARSE FRACTION SILTY SANDS.POORLY GRADED <br /> V° 15 SMALLER THAN SM <br /> o N0.4 STEVE SIZE •• SAND-SILT MIXTURES <br /> SANDS WITH OVER <br /> 12%FINES <br /> SC CLAYEY SANDS,POORLY GRADED <br /> SAND-CLAY MIXTURES <br /> T ML INORGANIC SII TS AND VERY FINE SANOS. <br /> ROCK FLOUR.SILTY OR CLAYEY FINE SANDS, <br /> Err Vj¢ OR CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> h a J SILTS AND CLAYS INORGANIC CLAYS OF LOW TO MEDIUM <br /> it CL PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> yr_ <br /> r (nw LIQUID OMIT 50%OR LESS SILTY CLAYS,LEAN CLAYS <br /> L ' L11 u� OL j ) f ORGANIC CLAYS AND ORGANIC SILTY CLAYS . <br /> Z47 i 1 1 I OF LOW PLAS11CIiY { <br /> r ic=O0 <br /> m" zINORGANIC SILTS.MICACEOUS OR <br /> !- <br /> t t 0F a MH DIATOMACEOUS FINE SANDY OR SILTY <br /> )..rte LLI ~ SILTS AND CLAYS SOILS,ELASTIC;SILTS <br /> P Z CH INORGANIC CLAYS OF HIGH PLASTICITY,FAT <br /> LIQUID LIMIT GREATER THAN 50% CLAYS <br /> j OH �� ORGANIC CLAYS OF MEDIUM TO HIGH <br /> PLASTICITY,ORGANIC SILTS <br /> HIGHLY ORGANIC SOILS Pt PEAT AND OTHER HIGHLY ORGANIC SOILS <br /> UNIFIED SOIL CLASSfFICATlON SYSTEM <br /> ;. <br /> I ) <br /> ..» Perm PGrmeablilty Shear Strength[Pst <br /> )"). Confining Pressure <br /> Consol Consolidation TXIJU 32000 (2600) —..Unconsolidated Undrained Triaxial Shear <br /> L4_._ Liquid.Limit(%)_.._. . {FM)or(S). r <br /> _(field moisture or saturated) <br /> PI - Plastic Index(%) TxCU 3200 (2600) Consolidated Undrained Triaxial Shear <br /> G$ Specific Gravity (P) (with or without pore pressure measurement) <br /> MA Particle Size Analysis TxCD 3200 (2600) — Consolidated Drained Triaxial Shear <br /> }_! SSCU. 3200 (2600) — .Simple Shear Consolidated U} <br /> ® "Undisturbed"Sample rdrained(P) [with or without { <br /> _ pore pressure measurement) ! <br /> ® Bulk or Classification Sample SSCD 3200 (2600) — Simple Shea.Consolidated i]rained <br /> DSCO 2700 (2000) - Consolidated Drained Direct Shear <br /> UC 470 =— Unconfined Compression <br /> LVS 700 — Laboratory Vane Shear <br /> KEY TO TEST DATA <br /> Harding Lawson Assaolatca UNIFIED SOIL .CLASSIFICATION SYSTEM <br /> F"ATS <br /> I <br /> Engineers.cgists <br /> Geoph Southland Corporation <br /> & ists <br /> k; Tracy, California <br /> ` I DRAWN JOBNUME9ER AP FAMED - DATE r7EV15E(J DATE - <br /> r" <br /> � r <br />