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Direct Shear Test Job No.: 5741 <br /> ASTM: D3080 <br />Project: Monument Dam - #06/26-067 <br />Boring No.: SB-02 Sample No. Depth: 25-26.7 & 27.5-29.5 Test Date: 8/6/2006 <br />Location: Sample Type: SB Date Re orted: 8/11/2006 <br />Soil Type: Lean Clay w/Sand Shear Rate <br /> 0.00078 (in/min) <br />Remarks: Specimen Prepared to a liquidity index of approximately 1.4 <br /> Liquid Limit: 39.3 <br /> Plastic Limit: 21.1 <br /> Plasticity Index: 18.2 <br /> (') =Assumed Specific Gravity Specific Gravity (`): 2.68 <br />0 0.1 0.2 0.3 0.4 <br /> Failure Criterion: <br />5 <br /> Max Shear Stress A B C D <br /> Initial ~ Q X <br />0 <br />Diameter (In.l 2.50 2.50 2.50 <br /> Thickness (In.) 0.83 0.83 0.83 <br />r 5 Water Content (%1 47.2 47.2 47.2 <br />U <br />5 <br />Drv Density (acf) 73.5 73.5 73.5 <br />c -10 Before Shear <br /> <br /> Thickness (In.l 0.67 0.65 0.61 <br />-15 Water Content (%) 31.4 28.9 25.3 <br />Y Drv Densitv (ocf) 90.9 94.2 99.7 <br />t -20 <br />F- <br />c Normal Stress 0.75 1.50 3.00 <br />rn -25 Shear Stress 0.61 1.07 1.83 <br />t "These tests are for informational purposes only and must be reviewed by a <br />V _30 qualified professional engineer to verify that the test parameters shown are <br /> appropriate for any particular design." <br />-35 Peak Conditions At Given Shear Disp. Of: 0.3 <br /> Friction Angle: ~ 28.1 deg. Friction Angle: ~ 27.5 deg. <br />-40 Apparent Apparent <br />0.233 TSF 0.224 TSF <br /> Cohesion Cohesion <br />2 <br /> 3 <br />1.8 <br />1.6 2.5 <br />1.4 <br /> ti 2 <br />N 1.2 t <br />C/ ~ <br />H <br />m 1 ~y.. <br />N 1.5 <br />N N <br />~ <br />d 0.8 t <br />m <br />z <br />N <br /> 1 <br />0.6 <br />0.4 <br /> 0.5 <br />0.2 <br />0 0 <br />0 0.1 0.2 0.3 0.~ 0 0.5 1 1.5 2 2.5 3 <br /> Shear Displacement (inch) Normal Stress (TSF) <br />OIL <br />9301 Bryant Ave. South, Suite 107 NGINEERING Bloomington, Minnesota 55420-3436 <br />ESTING, INC. <br />