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° �� � Stork Twin City Testing Corporation <br /> Materials Technology <br /> SYMBOLS AND TERMINOLOGY ON TEST BORING LOGS <br /> SYMBOLS <br /> Drilling and Sampling Laboratory Testing <br /> Symbol Description Svmbol Description <br /> HSA 3-1/4"I.D.hollow stem auger W Water content,%(ASTM:D2216)'* <br /> FA 4",6°or 10"diameter flight auger D Dry density,pcf <br /> HA 2",4"or 6"hand auger LL Liquid limit(ASTM:D4318) <br /> DC 2-1/2",4",5"or 6"steel drive casing PL Plastic limit(ASTM:D4318) <br /> RC Size A, B or N rotary casing <br /> PD Pipe drill or cleanout tube ---Inserts in Last Column(Qu or RQD)--- <br /> CS Continuous split barrel sampling <br /> DM Drilling mud Qu Unconfined compressive strength,psf(ASTM:D2166) <br /> JW Jetting water Pq Penetrometer reading,tsf(ASTM:D1558) <br /> SB 2"O.D.split barrel sampling Ts Torvane reading,tsf <br /> L 2-1/2"or 3-1/2"O.D.SB liner sample G Specific gravity(ASTM:D854) <br /> T 2°or 3"thin walled tube sample SL Shrinkage limits(ASTM:D427) <br /> 3TP 3"thin walled tube using pitcher sampler OC Organic content—Combustion method(ASTM:D2974) <br /> TO 2"or 3"thin walled tube suing Osterberg sampler SP Swell pressure,tsf(ASTM:D4546) <br /> W Wash sample PS Percent swell under pressure(ASTM:D4546) <br /> B Bag sample FS Free swell,%(ASTM:D4546) <br /> P Test pit sample SS Shrink swell,%(ASTM:D4546) <br /> Q BQ,NQ,or PQ wireline system pH Hydrogen ion content—Meter Method(ASTM:D4972) <br /> X AX, BX,or NX double tube barrel SC Sulfate content,parts/million or mg/I <br /> N Standard penetration test,blows per foot CC Chloride content,parts/million,or mg/I <br /> CR Core recovery,percent C* One dimensional consolidation(ASTM:D2435) <br /> WL Water level Qc* Triaxial compression(ASTM:D2850 and D4767) <br /> � Water level D.S.' Direct shear(ASTM:D3080) <br /> NMR No measurement recorded,primarily due to the K* Coefficient of permeability,cm/sec(ASTM:D2434) <br /> presence of drilling or coring fluid P* Pinhole test(ASTM:D4647) <br /> DH' Double hydrometer(ASTM:D4221) <br /> MA' Particle size analysis(ASTM:D422) <br /> R Laboratory electrical resistivity,ohm-cm(ASTM:G57) <br /> E* Pressuremeter deformation modulus,tsf(ASTM:D4719) <br /> PM* Pressuremeter test(ASTM:D4719) <br /> VS* Field vane shear(ASTM:D2573) <br /> IR' Infiltrometer test(ASTM:D3385) <br /> RQD Rock quality designation,percent <br /> * Results shown on attached data sheet or graph <br /> " ASTM designates American Society for Testing and Materials <br /> TERMINOLOGY <br /> Particle Sizes Soil Layering and Moisture <br /> Tvpe Size Ranqe Term Visual Observation <br /> Boulders > 12" Lamination Up to 1/4"thick stratum <br /> Cobbles 3"—12" Varved Alternating laminations of any combination of <br /> Coarse gravel 3/4"—3" clay,silt,fine sand,or colors <br /> Fine gravel #4 sieve—3/4" Lenses Small pockets of different soils in a soil mass <br /> Coarse sand #4-#10 sieve Stratified Alternating layers of varying materials or colors <br /> Medium sand #10-#40 sieve Layer 1/4"to 12"thick stratum <br /> Fine sand #40-#200 sieve Dry Powdery,no noticeable water <br /> Silt 100%passing#200 sieve and>0.005 mm Moist Damp,below saturation <br /> Clay 100%passing#200 sieve and<0.005 mm Waterbearing Pervious soil below water <br /> Wet Saturated,above liquid limit <br /> Gravel Content Standard Penetration Resistance <br /> Coarse-Grained Soils <br /> Fine-Grained Soils Cohesionless Soils Cohesive Soils <br /> %Gravel Description %Gravel Description N-Value Relative Density N-Value Consistencv <br /> 2—15 A little gravel <5 Trace of gravel 0—4 Very loose 0—4 Very soft <br /> 16—49 With gravel 5—15 A little gravel 5—10 Loose 5—8 Soft <br /> 16—30 With gravel 11—30 Medium dense 9—15 Firm <br /> 31—49 Gravelly 31—50 Dense 16—30 Hard <br /> >50 Ve dense >30 Ve hard <br /> Stork Twin City Testing Corporation is an operating united of Stork Materials Technology B.V., <br /> tw�n c�tv test�nq <br /> �ao„M,o„ Amsterdam,The Netherlands,which is a member of the Stork group <br />