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1 <br />t <br />t <br />1 ~i <br />1 <br />1 ~ <br />1 <br />1 <br />1 <br />1 <br />SLOPE ST.vBILITY SUI.4~tAkY SHEET <br />BEAR P1INE N0. 3 <br />Conditions Analyzed: _ <br />Colluvium - c = 210 psf, Q = 16° (Residual strength) <br />Bedrock (other than massive sandstone) - c = 4000 psf ~ = 33° (Typical overall triaxial <br />shear strength performance for interbedded siltstone, sandstone, and shale) <br />Seepage condition - 4 ft. thick seepage zone at bedrock/colluvium interface. <br /> itarginally Minimum Critical Pfode <br />Slooe Stable Stable Unstable F.S. Circular Plane <br /> <br />Section A: <br />Existing condition: <br />Above portal area X 0.605 X <br />Below bench area X 0.221 X <br />Future condition: <br />20 ft. bench - above portal X 0.528 X <br />40 ft. bench - above portal X 0.521 X <br />40 f.t. bench - below bench X 0.582 X <br />Section B: <br />Existing condition: <br />Above portal area X 1.453 X <br />Below bench area X 0.804 X <br />Future condition: <br />Above portal area X 2.138 X <br />Below bench area (reclaimed) X 0.780 X <br />Section C: <br />Existing condition: <br />Above portal area X 0,714 X <br />Below bench area X 0,812 X <br />Future condition: <br />Above portal area X 0.724 X <br />Below bench area (reclaimed) X 0.778 X <br />Section D: <br />Existing condition: <br />Above portal area X 0.806 X <br />Below bench area X 0.809 X <br />Future condition: <br />Above portal area X 0.833 X <br />Below bench area (reclaimed) X 0.801 X <br />Section E: <br />Existing condition: <br />Above haul road X 0.817 X <br />Below haul road X 0.815 X <br />Future condition: <br />Above haul road X 0.780 X <br />Below haul road X 0.779 X <br />