a) Design a Shallow Foundation to support a dead load of 500 kN/m and an imposed load of 300 kN/m in a silty sand. Characteristic values of shear strength parameters are c|= 10 kN/m2 and ø| = 40°. The saturated unit weight of the soil is 20 kN/m3 and the unit weight above the water table is 17 kN/m3 . (a) determine the required size, shape and depth of the footing if a lumped factor of safety of 3.0 against shear failure is specified and assuming that the water table (i) is well below the foundation level (ii) may rise to foundation level (iii) may rise to the surface
(a) Design a Shallow Foundation to support a dead load of 500 kN/m and an imposed load of 300 kN/m in a silty sand. Characteristic values of shear strength parameters are c|= 10 kN/m2 and ø| = 40°.
The saturated unit weight of the soil is 20 kN/m3 and the unit weight above the water table is 17 kN/m3 .
(a) determine the required size, shape and depth of the footing if a lumped factor of safety of 3.0 against shear failure is specified and assuming that the water table
(i) is well below the foundation level
(ii) may rise to foundation level
(iii) may rise to the surface
(b) determine if a foundation of that size, shape and depth would satisfy the bearing resistance limit state?
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