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0 <br />10 <br />DESCRIPTIVE TERMINOLOGY & SOIL CLASSIFICATION <br />LABORATORY/FIELD TESTING DEFINITIONS FOR <br />CONSISTENCY OF COHESIVE SOILS <br />EXPLORATION LOGS <br />CONSISTENCY <br />STP (BPF) �PP (TSF) <br />DD = <br />DRY DENSITY (PCF) <br />VERY SOFT <br />0-1 LESS THAN 0.25 <br />SOFT <br />2-4 025 05 <br />WD = <br />WET DENSITY (PCF) <br />------ <br />MEDIUM STIFF <br />5 - 8 0 5 - 1.0 <br />MC = <br />MOISTURE CONTENT (%) <br />? , STIFF j <br />9 - 15 1 0 - 2.0 j <br />PL = <br />PLASTIC LIMIT (%) <br />VERY STIFF <br />16. 30 2 0 4 0 <br />HARD <br />30+ OVER 4.0 <br />LL = <br />LIQUID LIMIT (%) <br />-__ _ ..._._ _- - <br />. __._.-_ - -� <br />PI = <br />PLASTICITY INDEX <br />RELATIVE DENSITY OF COHESIONLESS SOILS <br />OC = <br />ORGANIC CONTENT (%) <br />DENSITY <br />-- <br />SPT (BPF) <br />S = <br />SATURATION PERCENT (%) <br />VERY LOOSE <br />_ <br />0-4 <br />LOOSE <br />5 -10 <br />SG = <br />SPECIFIC GRAVITY__._ <br />MEDIUM DENSE <br />11 -30 <br />C = <br />COHESION <br />DENSE <br />_. ..... <br />31 - 50 <br />( = <br />ANGLE OF INTERNAL FRICTION <br />VERY DENSE <br />-� -� <br />50+ <br />QU = <br />UNCONFINED COMPRESSION <br />STRENGTH <br />PARTICLE SIZE IDENTIFICATION <br />#200 = <br />PERCENT PASSING THE #200 SIEVE <br />--- -- - , <br />NAME <br />DIAMETER SIEVE NO. <br />CBR = <br />CALIFORNIA BEARING RATIO <br />(INCHES) <br />VS = <br />VANE SHEAR <br />ROCK BLOCK ! <br />_.. <br />>120 <br />_BOULDER <br />PP = <br />POCKET PENETROMETER---- <br />-------- - <br />COBBLE <br />3-12 <br />DP = <br />DRIVE PROBE <br />GRAVEL <br />___..__ ____ <br />SPT = <br />STANDARD PENETRATION TEST <br />-- - ------------ <br />COURSE <br />- . _ . <br />3/4 3 <br />FINE <br />1/4-3/4 NO. 4 <br />BPF = <br />BLOWS PER FOOT (N VALUE) <br />� <br />SAND <br />SH = <br />SHELBY TUBE SAMPLE <br />COARSE <br />4.75 MM NO. NO. 10 <br />GW = <br />GROUND WATER <br />2.OMM _.._. _ N0.40 <br />FINE <br />.425 MM NO 200 <br />RQD = <br />ROCK QUALITY DESIDNATION <br />- <br />_ _ ...._ <br />SILT <br />.075 MM <br />TP = <br />TEST PIT <br />B = <br />BORING <br />GRAIN SIZE <br />HA = <br />HAND AUGER <br />FINE <0.04 INCH FEW GRAINS ARE <br />GRAINED <br />DISTINGUISHABLE IN THE <br />0 <br />FIELD OR WITH HAND LENS. <br />GROUNDWATER LEVEUSEEPAGE <br />" "�" " �" <br />MEDIUM 0 04-0.2 INCH <br />��"" " -"" " - <br />GRAINS ARE <br />ENCOUNTERED <br />DURING EXPLORATION <br />GRAINED <br />'DISTINGUISHABLE WITH THE <br />AID OF A HAND LENS. <br />COARSE 0.04 0.2 INCH <br />MOST GRAINS ARE <br />GRAINED <br />DISTINGUISHABLE WITH THE <br />NAKED EYE. <br />STATIC GROUNDWATER LEVEL WITH <br />DATE MEASURED <br />