Laserfiche WebLink
DIRECT SHEAR TEST 2/17/2017 <br /> Date: 10/6/16 <br /> Client: NewFields <br /> Project: CC&V-Stage 2B Tailings Management Study <br /> NF#475-0106-009 <br /> Project No.: DV 108-00305/05 <br /> Location: Ore Blend 1 <br /> Description: poorly graded gravel with clay and sand <br /> Remarks: Failure chosen at 15%strain with C=O. Particles larger than 3/4" were removed and replaced <br /> with finer gravel prior to test. Test was inundated. Gap=0.4" <br /> Type of Sample: Tamped loose into box <br /> Assumed Specific Gravity=2.7 LL=34 PL=21 PI=13 <br /> Parameters for Specimen No. I <br /> Specimen Parameter Initial Consolidated Final <br /> Moisture content: Moist soil+tare, gms. 6943.600 8554.000 <br /> Moisture content: Dry soil+tare, gms. 6783.500 6834.300 <br /> Moisture content: Tare, gms. 0.000 0.000 <br /> Moisture, % 2.4 25.2 25.2 <br /> Moist specimen weight, gms. 6943.6 <br /> Side Length, in. 8.00 8.00 <br /> Area, in.' 64.00 64.00 <br /> Height, in. 4.50 4.02 <br /> Net decrease in height, in. 0.48 <br /> Wet density, pcf 91.8 125.6 <br /> Dry density, pcf 89.7 100.4 <br /> Void ratio 0.8785 0.6791 <br /> Saturation, % 7.3 100.0 <br /> Test Readings for Specimen No. 1 <br /> Normal stress = 2500 psf <br /> Strain rate, in./min.=0.13 <br /> Fail. Stress=3508 psf at reading no. 70 <br /> Horizontal Shear <br /> Def.Dial Load Load Strain Stress <br /> No. in. Dial lbs. % psf <br /> 0 0.0000 2.000 0.0 0.0 0 <br /> 1 0.0074 132.000 130.0 0.1 293 <br /> 2 0.0157 198.000 196.0 0.2 441 <br /> 3 0.0239 241.000 239.0 0.3 538 <br /> 4 0.0327 273.000 271.0 0.4 610 <br /> 5 0.0395 296.000 294.0 0.5 662 <br /> 6 0.0479 323.000 321.0 0.6 722 <br /> 7 0.0567 341.000 339.0 0.7 763 <br /> 8 0.0634 362.000 360.0 0.8 810 <br /> 9 0.0724 379.000 377.0 0.9 848 <br /> 10 0.0811 397.000 395.0 1.0 889 <br /> 11 0.0965 434.000 432.0 1.2 972 <br /> 12 0.1118 460.000 458.0 1.4 1031 <br /> 13 0.1271 491.000 489.0 1.6 1100 <br /> Knight Piesold Geotechnical Lab. <br />