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'1 <br /> 7r 1 CONSULTANTS Eng;neers a Geologists <br /> UNIFIED SOIL CLASSIFICATION SUMMARY <br /> P + OH CH I MH OL I CL I ML SC I SM SP t SW GC I GM GP I Gµ,` <br /> Sands with fines Clean sands Gravels with fines Clean graver <br /> Highly Silts and Clays Sifts and clays > 12%tines < 5%tinea > 12%tines < 5%fines <br /> orgI., Liquid limit 50 or more Liquid limit less than 50 <br /> q � Sands-50%or more of coarse Grovels—more than 50%of coag <br /> $0413 traction is smaller than W4 sieve traction is larger than W4 sieve <br /> Fine grained soils Coarse grained soils <br /> (50%or more is smaller than W 200 sieve) (More than 50%is larger than IVs 200 sieve <br /> e0 LABORATORY CLASSIFICATION CRITERIA p <br /> a S0 �� GW and SW—Cu D.greater than 4 for GW&6 for SW:Cc- between i <br /> _r x pyo pia z Dw <br /> GP and SP—Clean gravel or sand not meeting requirements for GW and SW. <br /> r � <br /> GM and SM--Atterberg limits below"A"line or P.l.less than 4. <br /> 'r` I GC and SC--Atterberg limits above"K line with P.I.greater than 7. <br /> U iSa <br /> 0� MH or OH Fines(sill or clsy) +. r F_ r vim,_ <br /> a _ Siere sizes 200 40 10 < 3/4' 3- 10, <br /> ML or OL <br /> o Classification pf earth materials shown on lest boring togs is based on field <br /> p 1D1620 gp 4D 5p �p 8p gD 100 1 to inspection and should not be construed to imply laboratory analysis unless so state= <br /> LIQUID LIMIT(LL) — <br /> 4 <br /> MATERIAL SYMBOLS CONSISTENCY OF CLASSIFICATION ' <br /> FOR SOILS <br /> MOO <br /> Peat or <br /> a. o Gravel l�rlll organic matter .According to the Standard Penetration Test <br /> Sand FII materia! <br /> N2 of blows Granular Cohesive <br /> • • ® 0'5 Verb loose Very soft <br /> Silt Shale <br /> 6-10 Loose Soft <br /> SClay Sandstone 11.20 Semicompact Stiff <br /> I <br /> Sandy Clay or ®Limestone 21-35 Compact Very stiff <br /> - I clayey sand <br /> I 36-70 Dense Hard <br /> a Sandy sift or Metamorphic <br /> silty sand nxdc <br /> 70 Very dense Very hard <br /> Silty clay or <br /> clay ® igneous rack Where standard penetration test has not been <br /> t esitt <br /> performed consistencies shown on logs are estimated. I. <br /> LEGEND OF BORING LEGEND OF PENETRATION TEST <br /> 75 <br /> Bulk 24 r <br /> Sample 30 <br /> Conformable material change 35 G.W.S. <br /> t t, <br /> Drive <br /> Sample Approximate material change 27 <br /> MCLS ---- —_ 38 <br /> XW_ <br /> 4$ <br /> ICasing Unconformable material change 0 20 / 40 <br /> f set Blows per toot <br /> Bottom of baring (Using 140 tb1 10 B.P.F. <br /> hammer with <br /> 30"drop — 350 Graphic representation c. <br /> I tillb blow) driving rate <br /> ri <br /> i I <br />