2013-02-01_REVISION - M1982131 - Laserfiche WebLink

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***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** -- WARNING -- WARNING -- WARNING -- WARNING -- (# 48) ***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Negative effective stresses were calculated at the base of a slice. This warning is usually reported for cases where slices have low self weight and a relatively high "c" shear strength parameter. In such cases, this effect can only be eliminated by reducing the "c" value. ***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** USER SELECTED option to maintain strength greater than zero Factors of safety have been calculated by the : SIMPLIFIED BISHOP METHOD The most critical circular failure surface is specified by 12 coordinate points Point x -surf y -surf No. (ft) (ft) 1 138.95 13.95 2 143.07 16.78 3 147.10 19.73 4 151.05 22.81 5 154.90 26.00 6 158.65 29.30 7 162.30 32.72 8 165.84 36.24 9 169.28 39.87 10 172.61 43.61 11 175.83 47.44 12 177.90 50.06 * * ** Simplified BISHOP FOS = 1.087 * * ** The following is a summary of the TEN most critical surfaces Problem Description : Bucklen Pit mining condition FOS Circle Center Radius Initial Terminal Resisting (BISHOP) x -coord y -coord x -coord x -coord Moment (ft) (ft) (ft) (ft) (ft) (ft -lb) 1. 1.087 46.85 152.42 166.30 138.95 177.90 2.029E +06 2. 1.102 129.23 61.04 51.77 120.53 179.79 2.247E +06 3. 1.113 129.63 57.49 48.35 120.53 177.34 1.939E +06 4. 1.119 - 112.70 335.04 408.62 135.26 180.18 5.727E+06 5. 1.130 130.21 47.99 35.14 138.95 164.12 3.884E+05 6. 1.132 130.30 51.45 42.20 122.37 172.30 1.326E +06 7. 1.133 134.33 59.80 47.77 137.11 181.05 2.066E +06 8. 1.145 127.54 46.92 37.97 118.68 164.76 6.769E+05 9. 1.146 137.32 55.03 44.82 135.26 181.80 2.391E +06 10. 1.150 - 311.27 641.31 773.05 135.26 186.97 1.854E +07 * * * END OF FILE * * * Page 5 of 15