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1.63 <br /> 40 Configuration: <br /> Bench Height above El. 7000: 40 ft <br /> 7,700 Bench Width above El. 7000: 40 ft <br /> Bench Height below El. 7000: 70 ft <br /> Bench Width below El. 7000: 30 ft <br /> 7,500 Bench Face Angle: 90° <br /> Intermediate Bench Width: 50 ft <br /> 7,300 Material Properties: <br /> y : y = 164 pcf <br /> c' = 332.9 psi = 47940 psf <br /> 7,100 <br /> cp` = 7.7° <br /> 00 <br /> 00 <br /> 0 <br /> Q - <br /> Z <br /> 6,700 <br /> 0 . <br /> 6,500 <br /> > <br /> N <br /> W 6,300 <br /> 6,100 <br /> 5,900 II' <br /> 5,700 -- -- — - -- - -- -- - --- <br /> -1,200 -700 -200 300 800 1,300 1,800 2,300 <br /> Horizontal Distance (ft) <br /> Notes: Morrison Quarry Case 3-2 <br /> 1. The Factor of Safety(FS)value shown is for the 1 <br /> South Quarry <br /> critical failure surface. Jefferson County, COnt11 <br /> y, C Proposed Benching <br /> G `I Consultants Sensitivity Analysis Results <br /> Aggregate Industries June 2017 Figure B-20 <br />