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------------------------------------------------------------ <br /> USER SELECTED option to discard surfaces with effective <br /> normal stresses less than zero <br /> ------------------------------------------------------------ <br /> ERROR #48: NEGATIVE effective stress calculated for at least <br /> 1 slice(s) out of 16 slices for surface # 30 <br /> The trial failure surface in question is <br /> defined by the following 13 coordinate points <br /> Point x-surf y-surf <br /> No. (ft) (ft) <br /> 1 97.87 135.00 <br /> 2 98.10 134.79 <br /> 3 99.00 134.00 <br /> 4 150.00 109.00 <br /> 5 300.00 117.00 <br /> 6 390.88 116.77 <br /> 7 391.81 117.69 <br /> 8 415.15 141.03 <br /> 9 438.48 164.36 <br /> 10 461.82 187.70 <br /> 11 485.15 211.03 <br /> 12 508.48 234.37 <br /> 13 514.94 240.82 <br /> ERROR #48: NEGATIVE effective stress calculated for at least <br /> 1 slice(s) out of 16 slices' for surface # 36 <br /> The trial failure surface in question is <br /> defined by the following 13 coordinate points <br /> Point x-surf y-surf <br /> No. (ft) (ft) <br /> 1 97.87 135.00 <br /> 2 98.10 134.79 <br /> 3 99.00 134.00 <br /> 4 150.00 109.00 <br /> 5 300.00 117.00 <br /> 6 393.86 117.17 <br /> 7 394.37 117.69 <br /> 8 417.71 141.02 <br /> 9 441.04 164.35 <br /> 10 464.37 187.69 <br /> 11 487.71 211.02 <br /> 12 511.04 234.36 <br /> 13 518.02 241.34 <br />