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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: 40 ft <br /> 7,300 - Material Properties: <br /> y = 164 pcf <br /> 77 <br /> c' = 337.6 psi = 48620 psf <br /> 7,100 <br /> cp` = 7.8° <br /> 00 <br /> 00 `- <br /> 6,900 - <br /> 6,700 <br /> O ' <br /> M <br /> 6,500 <br /> > <br /> N <br /> W 6,300 '— <br /> 6,100 �- <br /> 5,900 <br /> i <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 5-2 <br /> 1. The Factor of Safety(FS)value shown is for the <br /> critical failure surface. South Quarry County, <br /> CO11 <br /> Jefferson County, C Proposed Benching <br /> Sensitivity Analysis Results <br /> GEI LCe;ntsons <br /> Aggregate Industries June 2017 Figure B-22 <br />