Redo Problem 12.30 assuming that the water table coincides with the top of the fill and that satsfilld = 19.8 kN/m 3 . If

Redo Problem 12.30 assuming that the water table coincides with the top of the fill and that γ_satsfilld = 19.8 kN/m³. If the other quantities remain the same, what would be the downward drag force on the pile? Assume δ' = 0.5ϕ'_fill.

Figure 12.49

Problem 12.30

Figure 12.49a shows a pile. Let L = 15 m, D (pile diameter) = 305 mm, H_f = 3 m, γ_fill = 17.5 kN/m³, and ϕ'_fill = 25°.

Determine the total downward drag force on the pile. Assume that the fill is located above the water table and that δ' = 0.5ϕ'_fill.

Clay H Sand H fill fill L On Neutral Sand plane Clay (b)