A square footing has its bottom 2.5m below the ground surface. It has a dimension of 1.0m x 1.0m with φ = 30o, γ = 18.1k

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A square footing has its bottom 2.5m below the ground surface.
It has a dimension of 1.0m x 1.0m with φ = 30o, γ = 18.1kN/m3 and c
= 15.7kPa. The saturated unit weight is 19.3kN/m3.
(a)Compute the net allowable load that the footing could carry
if the ground water table is located 0.20m below the foundation
footing. (b)Compute the net allowable load that the footing could
carry if the ground water table is located 1.2m below the ground
surface.
Use: FS = 3.0 Nq = 18.40 Nc = 30.14 Ny = 15.67 qu = 1.3cNc + qNq
+ 0.40yBNy