4815 EVERGREEN WAY 2016-01-01 MF Import

, - r�� GENERAL (VOTES SAMPLE IDENTIFICATION The Unified Soil Classification System (USCS),AASHTO 1988 tind ASTM designations D2487 and D-2488 are used to identify the encountered materials unless otherwise noted. Goarse-grained soiis are defined as having more than 50% of their dry weight retained on a#200 sieve(0.075mrn);they are described as: boulders, cobbles, gravel or sand. Fine-grained soils have less than 50°/a of their dry weight retained on a#200 sieve; they are defined as siits or clay depending on their Atterberg Limit attributes. Major constituents may be added as modifiers and minor constituents may be added according to the relative proportions based on grain size. DRILLING AND SAMPLING SYMBOLS SFA: Solid F!ight Auger-typically 4"diameter ilights, SS: Split-Spoon - 1 3/8" I.D., 2"O.D., except where except where noted. noted. HSA: Hollow Stem Auger-typically 3Y,"or 4Y, I.D. ST: Shelby Tube-3"O.D., except where noted. openings, except where noted. BS: Bulk Sample M.R.: Mud Rotary- Uses a rotary head with Bentonite PM: Pressuremeter or Polymer Slurry CPT-U: Cone Penetrometer Testing with Pore-Pressure R.C.: Diamond Bit Core Sampler Readings H.A.: Hand Auger P.A.: Power Auger- Handheld motorized auger SOIL PROPERTY SYMBOLS N: Standard "N" penetration: Blows per foot of a 1n0 pound hammer falling 30 inches on a 2-inch O.D. Split-Spoon. N�o: A"N" penetration value corrected to an equivalent 60% hammer energy transfer efficiency(ETR) Q�: Unconfined compressive strength,TSF Q�: Pocket penetrometer value, unconfined compressive strength, TSF w%: Moisturelwater content, % LL: Liquid Limit, % PL: Plastic Limit, % PI: Plasticity Index= (LL-PL),% DD: Dry unit weight, pcf �,�,� Apparent groundwater level at time noted RELATIVE I'IENSITY OF COARSE-GRAINED SOILS ANGULARITY OF COARSE-GRAINED PARTICLES Relalive Densitv N-Blows/(ool Description Criteria Very Loose 0-4 Angular. Partides have sharp edges and relatively plane Loose q_ �p sides with unpolished suRaces Medium Dense 10-30 Subangular: Particles are similar to angular description, but have rounded edges Dense 30-50 Subrounded: Particles have neariy plane s�des,but have Very Dense 50-80 well•rounded corners and edges Exlremely Dense 80+ Rounded: Particles have smoothly curved sides and no edges GRAIN•SIZE TERMINOLOGY PARTICLE SHAPE Comoonent Size Ranqe Descriotion Criteria Boulders: Over 3�0 mm(>12 in.) Flat: Parlicles wilh width/thickness ratio>3 Cobbles: 75 mm to 300 mm(3 in.to 12 in.) Elongated: Parlicles with length/width ratio>3 Coarse-Grained Gravel: 19 mm to 75 mm('/.in.l0 3 in.) Flal 8 Elongated: Particles meet criteria for bolh flat and Fine-Grained Gravel: 4.75 mm to 19 mm(No.4 lo'/.in.) elongated Coarse-Grained Sand: 2 mm to 4.75 mm(No.10 to No.4) RELATIVE PROF'ORTIONS OF FINES Medium-Grained Sand: 0.42 mm to 2 mm(No.40lo No.10) Fine-G�ained Sand: 0.075 mm to 0.42 mm(No.20010 Vo.401 Descriptive Term% Drv Weight Sill: O.OUS mm l0 0.075 mm Trace: <�°'� Clay: <0.005 mm With: 5%to 1�% Modifier: >12% Page t o12 �