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Water Surface: None <br />Material: Ph II Geomembrane/Soil Liner <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1600 psf <br />Friction Angle: 15 degrees <br />Water Surface: None <br />Material: Structural Fill <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 38 degrees <br />Water Surface: None <br />Global Minimums <br />Method: spencer <br />FS: 1.660850 <br />Center: 992.035, 1876.134 <br />Radius: 1787.554 <br />Left Slip Surface Endpoint: 370.792, 200.006 <br />Right Slip Surface Endpoint: 2625.460, 1150.000 <br />Resisting Moment=8.31524e+010 lb-ft <br />Driving Moment=5.00663e+010 lb-ft <br />Resisting Horizontal Force=4.02122e+007 lb <br />Driving Horizontal Force=2.42119e+007 lb <br />Valid / Invalid Surfaces <br />Method: spencer <br />Number of Valid Surfaces: 1104 <br />Number of Invalid Surfaces: 3747 <br />Error Codes: <br />Error Code -100 reported for 1 surface <br />Error Code -101 reported for 30 surfaces <br />Error Code -103 reported for 350 surfaces <br />Error Code -1000 reported for 3366 surfaces <br />Error Codes <br />The following errors were encountered during the computation: <br />-100 = Both surface / slope intersections <br />are on the same horizontal surface. In general, this <br />will give a very high or infinite factor of safety (zero <br />driving force), if calculated. <br />-101 = Only one (or zero) <br />surface / slope intersections. <br />-103 = Two surface / slope intersections, <br />but one or more surface / nonslope external polygon <br />intersections lie between them. This usually occurs <br />when the slip surface extends past the bottom of the