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TRIAXIAL TEST ASTM: D 4767 <br />Project: Monument Dam - # 06/26-067 <br />Boring #: SB-02 Sample #: Type: 3T Depth (ft): 20 - 22 <br />Soil Type: Lean Clay w/Sand, & a Little Gravel (CL) <br />L - ~- <br />1.s <br />~ 1 <br />N <br />ayi <br />d 0.5 '- <br />d <br />o` <br />a 0 <br />-0.5 <br />9 - <br />3.5 <br />y 3 - <br />~2.5 <br />d <br />UJ 2 <br />0`1.5 <br />io <br />> 1 <br />m <br />X0.5 <br />0 <br />3.5 <br />0 3.0 <br />~ 2.5 <br />m i <br />d <br />N 2.0 <br />1.5 <br />1.0 <br />0 <br />5 10 15 20 25 30 <br />Axial Strain (~) <br />Job No. 5741 <br />Date: 8/10/06 <br />rauure Grrtenon: Max. Stress Katio <br />Angle of internal friction, ~' . 33.6 ° <br />Apparent Cohesion, c' = 0.00 (tst) <br />Test Date: 7/14/06 Liquid Limit: 32.2 <br />Test Type: CU w/pp Plastic Limit: 17.2 <br />~ Strain Rate (in/min): 0.00236 Plasticity Index: 15.0 <br />Strain Rate (%/min): 0.060 Spec. Gravity (Assumed): 2.68 <br />Before Consolidation A B C D E <br />Diameter (in) 1.93 1.94 1.44 <br />Height (in) 3.97 3.96 2.99 <br />Water Content (%) 19.1 18.9 18.5 <br />^ Dry Density (pcf) 106.4 106.5 107.2 <br />Void Ratio 0.57 0.57 0.56 <br />After Consolidation <br />Diameter (in) 1.93 1.93 1.43 <br />Height (in) 3.96 3.90 2.95 <br />Water Content (%) 20.8 19.9 19.1 <br />~ Dry Density (pcf) 107.4 109.1 110.6 <br />Void Ratio 0.56 0.53 0.51 <br />Back Pressure (tsf) 5.76 5.76 5.76 <br />Minor Principal Stress (tsf) 0.75 1.50 3.00 <br />Max. Deviator Stress (tsf) 1.91 1.76 3.49 <br />Ultimate Deviator Stress (tsf) 1.86 1.53 2.89 <br />-~ Deviator Stress at Failure (tsf) 1.36 1.67 3.38 <br />Max. Pore Pressure Buildup (tsf) 0.29 0.73 1.70 <br />Pore Pressure Parameter "B" 1.0 1.0 1.0 <br />Pct. Axial Strain at Failure 3.5 5.1 9.5 <br />"These test results are for informational purposes only and must be reviewed by a <br />qualified professional engineer to verify that the test parameters shown are <br />X appropriate for any particular design" <br />Remarks: Radial drainage strips applied to trimmed specimen; Saturated, backpressured <br />until "B" response was 1, over a period of 10 days; Consolidated 2-4 days; Drainage valves <br />4 <br />3 <br />N <br />~ 2 <br />N <br />tl! <br />f~ <br />d 1 <br />t <br />(A <br />0~ <br />0 <br />1 2 3 9 <br />Normal Stress (p') (tsf) <br />Rupture Envelope at Failure <br />a = 28.9 ° a = 0.0 (tsf) <br />Bryant Ave. South Suite #107 <br />1 <br />I <br />f -ir~- <br />.I <br />,'~ <br />.', 1 <br />1 '~\ ,~ <br />3 <br />2 <br />0 <br />5 0 1 2 3 9 5 6 <br />Normal Stress (tsf) <br />----------- Effective ~': 33.6 ° c'= 0.00 (tsf) <br />Total ~': 21.6 ° c= 0.00 (tsf) <br />OIL <br />NGINEERING Bloomington, Minnesota 55420-3436 <br />ESTiNG, INC. <br />7 8 <br />