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NewFields <br /> Calculation: Geomembrane Tensile Failure and Anchor Pull-out due to self-weight. <br /> Project: CC&V(300ft high, 2:1 slopes, trench is 3ft deep, 2ft wide; <br /> Date: 11/12/2019 <br /> By: Julie Pfeiffer <br /> inputs <br /> Input Parameters <br /> Height of Slope (ft) 300 ft <br /> Slope (Z:1) 2 <br /> FML Thickness (mil) 80 mil <br /> FML Yield Stress (psi) 2200 psi <br /> FML Yield Stress (ppi) 176 ppi <br /> FML Specific Gravity 0.935 <br /> Soil Friction Angle 30 degrees <br /> Liner-Soil Interface Friction Angle (degrees) 15 degrees <br /> Anchor Trench Depth (ft) 3 ft <br /> Anchor Trench Width (ft) 2 ft <br /> Anchor Set-Back (ft) 2 ft <br /> Soil Depth over Setback 2 ft <br /> Cover Soil Unit Weight (pcf) 110 pcf <br /> Anchor Trench Soil Unit Weight (pcf) 110 pcf <br /> TENSILE FAILURE OF LINER FROM SELF-WT CALC'S <br /> FML Density 58.34 pcf <br /> Slope Length 670.82 ft <br /> Slope Angle 26.57 degrees <br /> Liner Total Wt./ Unit ft. 260.92 Ibs/ft <br /> Max. Tensile Force From Self-Wt. 116.69 Ibs/ft <br /> Frictional Resistance 62.53 Ibs/ft <br /> Tensile Stress (neg. frictional resistance) 121.55 psi <br /> Tensile Stress (w/frictional resistance) 56.41 psi <br /> FOS Tensile failure (MIN) 18 PASS <br /> FOS Tensile failure(MAX) 39 PASS <br /> Max. Heat/Cool Force: 179.22 Ibs/ft <br /> Max. Tensile Stress Developed 248.92 psi <br /> FOS Tensile Failure 9 PASS <br /> LINER ANCHOR CALC'S <br /> At Rest Coeff. 0.50 <br /> Active Pressure Coeff. 0.33 <br /> Passive Pressure Coeff. 3.00 <br /> Allowable Liner Force 2112.00 Ibs/ft <br /> Shear Force Above Membrane Due to Soil Cover (Crest) 0.00 Ibs/ft <br /> Shear Force Below Liner Due to Soil Cover(Crest) 0.00 Ibs/ft <br /> Shear Force Above Membrane Due to Anchor fill (Anchor) 176.85 Ibs/ft <br /> Shear Force Below Liner Due to Anchor fill (Anchor) 176.85 Ibs/ft <br /> Shear Force Below Liner Due to Liner Pull-Down 253.08 Ibs/ft <br /> Active Pressure Anchor Backfill Side 385.00 Ibs/ft <br /> Passive Pressure Anchor InSitu Side 3465.00 Ibs/ft <br /> Sum of Forces 3686.77 Ibs/ft <br /> FOS Pull-out 14 PASS <br /> Based on methods presented in "Designing With Geosynthetics"4th edition <br /> Robert M. Koerner, 1998 Prentice-Hall <br /> P1Projects\0106.033 VLF2 Phase 3 Detailed Design\H-CALCULATIONS\Geomembrane Calcs\Liner Pull Out Calc 2tol.xlsm Liner PullOut <br />