Question

1. A wide fill will apply a uniform pressure of 100 kN/m² to the surface of a soil profile consisting of 3 m of weathered clay (γ = 17.6 kN/m³, e_o = 1.2, C_c = 0.5, σ_p’/σ’_zo = 5, C_r/C_c = 0.2) over 7 m of marine clay (γ = 16.0 kN/m³, e_o = 1.8, C_c = 1.5, σ’_p/σ’_zo = 1.8, C_r/C_c = 0.1) over 5 m of lacustrine clay (γ = 16.3 kN/m³, e_o = 1.7, C_c = 1.2, σ_p’/σ’_zo = 1.0, C_a/C_c = 0.05) over granular till. The water table is 3 m below the ground surface. Compute settlement resulting from primary consolidation of: (a) weathered clay, (b) marine clay, and (c) compute settlement resulting from consolidation of the lacustrine clay after 50 years assuming that primary consolidation is completed in 14 years. ?

Answer 1