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INTERNATIONAL TECHNOLOGY CORPORATION VISUAL CLASSIFICATION OF SOILS PROJECT NUMBER ' BORING NUMBER ELEVATION ENGINEER/GEOLOGIST DRILLING METHODS DEPTH 1 ' ' V O a! * S Ul 5 > BLOWS ON 1 SAMPLER PER 1 1 RECOVERY 1 ( ) PROJECT NAME COORDINATES: GWL: Depth Date/Time Depth Date/Time DESCRIPTION USCS SYMBOL DATE DATE STARTED DATE COMPLETED PAGE OF MEASURED 1 CONSISTENCY (TSFI REMARKS - AU7Y.V m FIGURE 2 402-11-86 TUT OO6 O474 *64605* 64605 CONSISTENCY OF COHESIVE SOILS DENSITY OF GRANULAR SOILS CONSISTENCY VERY SOFT SOFT MEDIUM STIFF STIFF VERY STIFF HARD UNCONFINED COMPRESSIVE STRENGTHENS PER SQUARE FOOT) LESS THAN 0.25 0.25 TOO 50 0.50 TO 1.0 1.0 TO 2.0 2.0 TO 4.0 MORE THAN 4.0 DENSITY VERY LOOSE LOOSE MEDIUM DENSE DENSE VERY DENSE STANDARD PENETRATION RESISTANCE1" 0-4 5-10 11-30 31-50 OVER 50 (1) STANDARD PENETRATION RESISTANCE IS THE NUMBER OF BLOWS REQUIRED TO DRIVE A 2-INCH O.O. SPLIT BARREL SAMPLER 12 INCHES USING A 140-POUND HAMMER FALLING FREELY THROUGH 30 INCHES. THE SAMPLER 15 DRIVEN 18 INCHES AND THE NUMBER OF BLOWS RECORDED FOR EACH 8-INCH INTERVAL. THE SUMMATION OF THE FINAL TWO INTERVALS IS THE STANDARD PENETRATION RESISTANCE. CLEAR SIEVE OPENINGS U. S. STANDARD SIEVE NUMBERS off 1 1 1 1 1 1 1 ——— 1 coco GRAIN SIZE IN MM ts G.AVE. C<M"DI >.NI bin: C.->.P5P MCO ,« 1 • mf Sil ' AMD Cl A T U S C S CLASSIFICATION FOR SOILS COARSE-GRAINED SOILS FINE-GRAINED/HIGHLY ORGANIC SOILS CLEAN GRAVELS (LITTLE OR NO FINES) GRAVELS WITH FINES I APPRECIABLE AMOUNT OF FINES) CLEAN SANDS (LITTLE OR NO FINES) SANDS WITH FINES (APPRECIABLE AMOUNT OF FINES) GW GP GM GC SW SP SM SC WELL-GRADED GRAVELS, GRAVEL-SAND MIXTURES, LITTLE OR NO FINES POORLY-GRADED GRAVELS, GRAVEL-SAND MIXTURES, LITTLE OR NO FINES SILTY GRAVELS, GRAVEL- SAND- SILT MIXTURES CLAYEY GRAVELS GRAVEL-SAND-CLAY MIXTURES WELL-GRADED SANDS, GRAVELLY SANDS, LITTLE OR NO FINES POORLY-GRADED SANDS, GRAVELLY SANDS, LITTLE OR NO FINES ~ SILTY SANDS, SAND-SLT MIXTURES CLAYEY SANDS, SAND-CLAY MIXTURES SILTS AND CLAYS LIQUID LIMIT (LESS THAN 50) SILTS AND CLAYS LIQUID LIMIT (GREATER THAN 50) HIGHLY ORGANIC SOILS ML CL OL MH CH OH PT INORGANIC SILTS . AMD VERY FINE SANDS, ROCK FLOUR. SILTY OR CLAYEY FINE SANDS OR CLAYEY SILTS WITH SLIGHT PLASTICITY INORGANIC CLAYS OF LOW TO MEDIUM PLASTCITY, GRAVELLY CLAYS, SANDY CLAYS. SILTY CLAYS, LEAN CLAYS ORGANIC SILTS AND ORGANIC SILTY CLAYS OF LOW PLASTICITY INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS FINE SANDY OR SILTY SOILS INORGANIC CLAYS OF HIGH PLASTICITY, FAT CLAYS ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGANIC SILTS PEAT. HUMUS, SWAMP SOILS WITH HIGH ORGANIC CONTENTS FIGURE 3 TUT OO6 O475