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UNIFIED SOIL CLASSIFICATION (ASTM D-2487-98) <br />MATERIAL <br />TYPES CRITERIA FOR ASSIGNING SOIL GROUP NAMES GROUP SOIL GROUP NAMES & LEGEND <br /> SYMBOL <br /> <br />GRAVELS <br />CLEAN GRAVELS Cu>4 AND 1<Cc<3 GW WELL-GRADED GRAVEL <br />.' <br /> <5% FINES <br />J >50% OF COARSE Cu>4 AND 1>CC>3 GP POORLY-GRADED GRAVEL o Qo e <br />p z FRACTION RETAINED <br />v]O <br />p p ~ ON N04. SIEVE <br />GRAVELS WITH FINES FINES CLAS8IFY AS ML OR CL GM SILTY GRAVEL <br />o o <br />0 <br />w W w <br />a Q N >12%FINES <br />FINES CLASSIFY AS LL OR CH <br />GCi <br />CLAYEY GRAVEL <br />o <br />r <br />w ¢ ~ SANDS CLEAN SANDS Cu>6 AND 1<Cc<3 SW WELL-GRADED SAND <br />z <br />~ ~ <br />° <5% FINES Cu>6 AND 1>Cc>3 SP POORLY-GRADED SAND <br />p n >50 <br />h OF COARSE <br />O FRACTION PASSES <br />ON N04. SIEVE <br />SANDS AND FINES FINES CLASSIFY AS MLOR CL SM SILTY SAND <br /> >12%FINES <br /> <br />FINES CUSSIFY AS CL OR CH SC CLAYEY SAND <br /> SILTS AND CLAYS PbT AND PLOTS>'A'LINE CL LEAN CLAY <br />~ INORGANIC <br /> <br />Q(q <br />Nw~ LIQUID LIMIT<50 PIN AND PLOTSCA•UNE ML SILT <br />p N W <br />Qrn <br />ORGANIC <br />LL(°ven meayLL (nol arktlkD]s <br />OL <br />ORGANIC CLAY OR SILT - - <br />-_ <br />Z - - <br />ag <br />4 <br />0_ > ~ <br />O <br />° <br />O SILTS AND CLAYS PI PLOTS >'A•LINE CH FAT CLAY <br />1 <br />n <br />Znz <br />LIQUID LIMIT>50 INORGANIC <br />PI PLOTS <-A'LINE <br />MH <br />ELASTIC SILT <br /> <br /> ORGANIC LL (oven aneayu (n°L aa:°).a.>s OH ORGANIC CLAY OR SILT <br />HIGHLY ORGANIC SOILS PRIMARILY ORGANIC MATTER, DARK IN COLOR.ANDORGANIC ODOR PT PEAT -- <br /> SAMPLER TYPES <br />OTHER MATERIAL SYMBOLS <br /> ~' Poady-Gratled Sand +' Sentl ® SPT , Shelby Tube <br /> with Clay <br />Clayey Sand ~~ <br />Silt <br />8 <br />Modified Cal'rfomia (2.5' I <br />.D.) ~ No Recovery <br /> <br /> Santly Silt Well Graded Gravelly Sand ~ Rock Cofe <br /> ANficial/Undocumentetl FIII Gravely Silt ADDITIONAL TESTS <br /> <br />' CA - CHEMICAL ANALYSIS (GORROBNI TY) PI PIA8RLITY INDEX <br />tr~ <br />~. Poony-Gratletl Gravelly Sand ASpheR CD - CONSOLIDATED ORNNED TRIP%U1 SW SWELL TEST <br /> CN - CONSOLIDATION TC - CYCUL TRIA%W. <br />=. <br />~ TGP301 BOUItlBrS and Cobble CU - CONSOLIDATED UNDRAINED TRIA%IAL Ty - TORVANE SHEAR <br />r~' <br />al DS - MRECT SHEAR UC - UNCONFINED COMPRES810N <br /> Well-Gratletl Gnvel PP - POCKET PENETROMETER (TSF) (1.5) - LWITH SHEAR STRENGTH <br /> VAIN CaY (3.0) - (WITH SHEAR STRENGTH IN KSFI IN K8F) <br /> Well-Graded Gravel RV - R-VALUE UU UNCONSOLIDATED <br /> Wth St 8A - SIEVE ANALYSIS:%PASSING UNDRNNED TRIgXW. <br /> M200 SIEVE <br />~ <br />PLASTICfTV CHART - WATER LEVEL <br />ao <br />]0 <br />.- SO <br />X <br />w 50 <br />0 <br />z <br />~ 40 <br />r_1V <br />n ~ <br />10 <br />0 <br /> PENETRATION RESISTANCE <br />(RECORDED AS BLOWS/FOOT) <br />SANG 6 GRAVEL SILT 3 CLAY <br />RELATNE DENSITY BLOWSIFOOT• CONSISTENCY BLOWS/FOOT' STRENGTX'•0(SF) <br />VERY LOOSE 0-4 VERY SOFT 0-2 0-0.5 <br />LOOSE 1.10 SOFT 2-I 0.5-1.0 <br />MEDIUM DENSE 10-30 MEDIUM GTIFF 4-8 1.0.2.0 <br />DENSE b-50 STIFf 8-15 2.06.0 <br />VERY DENSE OVER 50 VERY STIFF 18.30 4.08.0 <br /> HMD OVER 90 OVER 8.0 <br />' NUMBER OF BLOWS OF 140 LE HAMMER FALLING 301NLHES TOORIVEA2INCH O.D. <br />(13R INCH I.D.1 BPUT-BARREL SAMPLER THE LAST 121NCNE80F AN 1&INCM DRIVE <br />(ASTM-15SS STANDAND PENETRATION TE$T). <br />D 111 20 30 40 50 SO ]0 80 BO 100 110 120 •• UNDRAINED SHEAR 8TRENGTH IN KIP350. FT. AS DETERMINED SY LABORATORY <br />LIpUlO LIMIT (X) TESTING OR A-PRO%IMATED BV THE STANWRO PENETRATION TEST, POCKET <br />PENETROMETER, TORVANE, OR VISUAL OBSERVATION. <br />C CORNERSTONE LEGEND TO SOIL Flyure Nt,rr,beF <br />EARTH GROUP DESCRIPTIONS A-~ <br />