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Material. Foundation <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 26 degrees <br />Water Surface: None <br />Material: Ph IV Geomembrane/Soil Liner <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 18 degrees <br />Water Surface: None <br />Global Minimums <br />Method: spencer <br />FS: 1.187510 <br />Center: 100.616, 2251.138 <br />Radius: 2059.434 <br />Left Slip Surface Endpoint: 463.597, 223.945 <br />Right Slip Surface Endpoint: 1530.431, 768.945 <br />Resisting Moment=1.08881e+010 lb-ft <br />Driving Moment=9.16881 a+009 lb-ft <br />Resisting Horizontal Force=4.67129e+006 lb <br />Driving Horizontal Force=3.93368e+006 lb <br />Valid / Invalid Surfaces <br />Method: spencer <br />Number of Valid Surfaces: 320 <br />Number of Invalid Surfaces: 4531 <br />Error Codes: <br />Error Code -101 reported for 7 surfaces <br />Error Code -109 reported for 2 surfaces <br />Error Code -111 reported for 1 surface <br />Error Code -1000 reported for 4521 surfaces <br />Error Codes <br />The following errors were encountered during the computation: <br />-101 = Only one (or zero) <br />surface / slope intersections. <br />-109 = Soiltype for slice base not <br />located. This error should occur very rarely, <br />if at all. It may occur if a very low number of <br />slices is combined with certain soil geometries, <br />such that the midpoint of a slice base is <br />actually outside the soil region,even though <br />the slip surface is wholly within the soil region. <br />-111 = safety factor equation did not converge <br />-1000 = No valid slip surfaces are generated <br />f.