A footing 3 m square carries a gross pressureof 350 kN/m2 at a depth of 1.2 m in sand. Thesaturated unit weight of sand is20kN/m3 and the unit weight above the watertable is 17KN/m3. The shear strengthparameters are c' = 0 and o = 30°. (ForO' = 30°, N = 22 and N. = 20 ). Determinethe factor of safety with respect of shear failurefor the following cases:%3Db.%3D%3D(a) water table is 5m below ground level.(b) water table is at 1.2 m below ground level.

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A footing 3 m square carries a gross pressure of 350 kN/m2 at a depth of 1.2 m in sand. The saturated unit weight of sand is 20KN/m3 and the unit weight above the water table is 17kN/m3. The shear strength parameters are c' = 0 and = 30°. (For O' = 30°, N = 22 and N. = 20 ). Determine the factor of safety with respect of shear failure for the following cases: %3D (a) water table is 5m below ground level. (b) water table is at 1.2 m below ground level.

A footing 3 m square carries a gross pressure of 350 kN/m2 at a depth of 1.2 m in sand. The saturated unit weight of sand is 20KN/m3 and the unit weight above the water table is 17kN/m3. The shear strength parameters are c' = 0 and = 30°. (For O' = 30°, N = 22 and N. = 20 ). Determine the factor of safety with respect of shear failure for the following cases: %3D (a) water table is 5m below ground level. (b) water table is at 1.2 m below ground level.

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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