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Br:nR "il*:E vu. s <br />Af;L 1. l?f' JL~ 'f. .`~1:~i11 !.!i~. ~LiA L:,i]o r. L, LI.i~ <br />Conditions Analyzed: -' _ - - _ <br />Colluvium - c = 360 psf, ~ = 23° (Peak strength) <br />Bedrock (other than massive sandstone) - c = 1150 psf ~ = 200 (Sdorst possible shear <br />strength condition for failure parallel to bedding planes in highly weathered <br />clay shale) <br />Seepage condition - 4 ft. thick seepage zone at bedrock/colluvium interface. <br />X Coord. Y Coord. <br />Slope (f t.) (f C.) R (ft.) F SFI(° <br />Section A: <br />Existing Condition: <br />Above portal area - S1 320 6316 161 0.949 30.64 <br /> W1 0.933 30.25 <br />Below bench area S2 540 6246 239 0.903 31.77 <br /> W2 0.803 34.36 <br />Future condition: <br />20 ft. bench with S3 320 6316 161 0.832 34.01 <br />1:1 backslope [J3 0.818 32.74 <br />40 ft. bench with S4 358 6330 196 0.973 37.03 <br />1:1 backslope W4 0.826 34.95 <br />40 ft, bench with <br />1:1 backslope- <br />below bench WS 0.895 31.47 <br />Section B: <br />Existing condition: <br />Above portal area S1 314 6502 326 1.057 29.97 <br /> S2 358 6496 366 1.033 29.95 <br /> W1 2.417 45.01 <br /> W2 1.736 10.00 <br />Below bench area S3 550 6588 576 0.891 27.77 <br /> W3 1.446 23.35 <br />Future condition: <br />Above portal area S4 322 6512 336 1.042 30.80 <br /> SS 454 6652 512 1.118 31.82 <br /> W4 2.094 30.00 <br />Below bench area S6 440 6536 456 0.925 29.16 <br />(reclaimed) S7 546 6582 571 0.893 27.70 <br />Section C: <br />Existing condition: <br />Above portal area S1 352 6484 364 1.134 27.53 <br /> W1 1.132 27.38 <br />Below bench area S2 450 6220 127.19 1.264 25.04 <br /> L~'2 1.429 26.23 <br /> 53 580 6288 256 1.311 23.61 <br /> W3 1.338 23.28 <br /> W4 1.765 17.59 <br />Future condition: <br />Above portal area S4 352 6484 364 1.137 27.47 <br /> ~,~5 1.145 27.39 <br />Below bench area SS 396 6496 408 1.070 26.41 <br />(reclaimed) W6 1.321 27.45 <br /> S6 578 6282 250 1.312 23.57 <br /> W7 1.328 23.36 <br /> lJ8 1.756 17.71 <br />