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<br /> <br /> <br />1 <br />1 <br />1 <br />1 <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br />! 104.83 <br />2 108.29 <br />3 115.82 <br />4 122.33 <br />5 136.51 <br />6 190.00 <br />7 287.50 <br />8 389.71 <br />9 434.60 <br />10 43 <br />3872.4 <br />I1 441.36 <br />l2 453.61 <br />13 466.49 <br />14 479.17 <br />15 491.85 <br />16 504.53 <br />17 517.20 <br />18 529.88 <br />19 542.56 <br />20 533.45 <br />21 559.79 <br />22 567.92 <br />23 580.30 <br />216.6 <br />640.6 <br />2521.4 <br />5784.5 <br />5774.5 <br />11478.6 <br />16179.8 <br />25059.8 <br />14621.6 <br />1.02 <. <br />9259.5 <br />8524.0 <br />7774.3 <br />7025.0 <br />6275.3 <br />5526.0 <br />4773.6 <br />4026.7 <br />3277.1 <br />2634.3 <br />2216.1 <br />1537.3 <br />504.2 <br /> <br />85.6 <br />255.6 <br />1009.4 <br />1781.7 <br />3337.4 <br />6465.0 <br />16175.9 <br />23145.6 <br />26061.9 <br />642.9 <br />24990.7 <br />23005.0 <br />20982.4 <br />18959.5 <br />16936.6 <br />14913.8 <br />12890.7 <br />10867.5 <br />8844.6 <br />7107.8 <br />5979.5 <br />4149.0 <br />1360.8 <br />.0 87.3 <br />6.1 255.6 <br />33.0 1002.5 <br />0 1512.4 <br />0 1511.1 <br />0 2244.9 <br />0 3107.1 <br />.0 3992.2 <br />0 2619.3 <br />!6004.7 31.2 <br />0 3730.5 <br />0 3434.1 <br />.0 3132.1 <br />0 2830.2 <br />o zsz6.z <br />0 2226.3 <br />0 1923.2 <br />0 1622.3 <br />0 1320.3 <br />0 1061.3 <br />0 892.8 <br />0 619.3 <br />0 203.1 <br />SPENCER'S (1973) - Magruwde & Location of <br />Interstice Forces <br />Slice Right Force Interstice Force Bourdary <br />Height <br />R x-coord Angle Force Height Height <br />Ratio <br />(fi) (degrees) (Ib) (h) (h) <br />1 106.58 25.62 730. 1.65 1.63 <br />1.014 <br />2 110.00 25.62 2835. 2.46 3.23 <br />.763 <br />3 121.65 25.62 30980. 6.24 15.94 <br />.391 <br />4 123.01 23.62 39933. 6.34 17.83 <br />.356 <br />5 150.00 25.62 154326. 16.58 45.50 <br />.364 <br />6 230.00 25.62 608097. 40.76 115.50 <br />.353 <br />7 345.00 25.62 1103168. 69.04 192.38 <br />.359 <br />8 434.41 25.62 1501020. 88.04 248.26 <br />.355 <br />9 434.79 25.62 1494029. 88.13 247.99 <br />.355 <br />10 435.26 25.62 1485337. 87.87 247.29 <br />.355 <br />I1 447.47 25.62 1266920. 80.93 228.73 <br />.354 <br />12 460.15 25.62 1058185. 73.69 209.46 <br />.352 <br />13 472.83 25.62 867798. 66.43 190.20 <br />.349 <br />14 485.51 25.62 695770. 59.13 170.93 <br />.346 <br />IS 498.19 25.62 542093. 51.79 151.67 <br />.341 <br /> <br /> 16 510.87 25.62 406773. 44.40 132.40 <br />.335 <br /> 17 523.54 25.62 289851. 36.93 113.13 <br />.326 <br /> IB 536.22 25.62 191245. 29.41 93.87 <br />.313 <br /> 19 548.90 25.62 110992. 21.93 74.60 <br />.299 <br /> 20 556.00 25.62 61717. 17.06 60.78 <br />.281 <br /> 21 561.58 25.62 49402. 15.47 53.11 <br />.291 <br /> 22 574.26 25.62 11755. 10.06 25.92 <br />.388 <br /> 23 586.34 . 00 -I5. 3.91 .00 .000 <br />AVERAGE VALUES ALONG FAQ.URE SURFACE <br />Total Normal Stress = 10513.91 (psf) <br />Pore Water Pressure = .69 (psfl <br />Shear Stress = 2436.87 (psi) <br />Total Length of failure surface = 697.48 feet <br />For the single specified surface and [he assumed angle <br />of the interstice forces, the SPENCER'S (1973) <br />procedure gives a <br />FACTOR OF SAFETY = 2.083 <br />Total shear strength available <br />along specified failure surface = 353.96E+04 Ib <br />wrr»rrrrrr»s»»r+»r+»++++r++++»wrra»»rr+rr+++++++»» <br />»»+f»Rt+»+f1 <br />For the specified surface, the analysis computed the <br />fo8owirtg: <br />Negative (tensile) Normal Effective Foru = 0 slices <br />Negative (tensile) Interstice Force = 0 slices <br />Unreasonable Location of Interstice Force = 1 slices <br />In view of these errors, the computed FOS may be <br />UNREASONABLE! <br />•ars+wt++wr»»»»»»»+r»»+++»w»»r»rr»»»r»ur»+»++++»» <br />+»rr»r»r»+r» <br /> <br />