A landfill cover slope has the following characteristics: slope angle = 4(H):1(V), slope%3Dlength L = 105 ft (32 m). A 2-foot-thick (0.6-m-thick) silt (%it = 110 lb/ft° or 17.3 kN/m³)and 6-inches (0.15 m) of topsoil (Kop = 90 lb/ft or 14 kN/m³) cover are placed over a 40-mil (1 mm) geomembrane. The geomembrane has an allowable tensile strength of 2,200Ib/in“ (15,000 kN/m²). The interface shear strength parameters of the geomembrane withthe upper soil are Cau = 0 and & = 14°, and with the lower soil are cal = 0 and & = 10°.%3D%3DCalculate the tension in the geomembrane and the resulting FS against geomembranefailure. If the factor of safety is less than 1.5, suggest an effective measure to increase thevalue of FS to 1.5 or more.

Solution:- Given data:- Slope angle = 4(H):1(V) Slope length = 105 ft (32m) Tensile strength = 2200…

4.3 A landfill cover slope has the following characteristics: slope angle = 4(H):1(V), slope length L = 105 ft (32 m). A 2-foot-thick (0.6-m-thick) silt (silt 110 lb/ft³ or 17.3 kN/m³) and 6-inches (0.15 m) of topsoil (op = 90 lb/ft³ or 14 kN/m³) cover are placed over a 40- mil (1 mm) geomembrane. The geomembrane has an allowable tensile strength of 2,200 lb/in² (15,000 kN/m²). The interface shear strength parameters of the geomembrane with the upper soil are cau = 0 and & = 14°, and with the lower soil are cal = = 0 and & = 10°. Calculate the tension in the geomembrane and the resulting FS against geomembrane failure. If the factor of safety is less than 1.5, suggest an effective measure to increase the value of FS to 1.5 or more.]

4.3 A landfill cover slope has the following characteristics: slope angle = 4(H):1(V), slope length L = 105 ft (32 m). A 2-foot-thick (0.6-m-thick) silt (silt 110 lb/ft³ or 17.3 kN/m³) and 6-inches (0.15 m) of topsoil (op = 90 lb/ft³ or 14 kN/m³) cover are placed over a 40- mil (1 mm) geomembrane. The geomembrane has an allowable tensile strength of 2,200 lb/in² (15,000 kN/m²). The interface shear strength parameters of the geomembrane with the upper soil are cau = 0 and & = 14°, and with the lower soil are cal = = 0 and & = 10°. Calculate the tension in the geomembrane and the resulting FS against geomembrane failure. If the factor of safety is less than 1.5, suggest an effective measure to increase the value of FS to 1.5 or more.]

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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