Question
A square footing is 2x2m in plan. The soil supporting the foundation has a friction angle ϕ′=25∘,c′=20kN/m2,the unit weight of soil γ=16.5kN/m3. Determine the allowable gross load on the foundation using terzaghi bearing capacity equations with a factor safety of 3. Assume that the depth of the foundation (Df)=1.5m and the general shear failure occurs in the soil.
Solution