Question: In a sandy soil (' = 35; = 18.0 kN/m 3 , and sat = 20.0 kN/m 3 ), the water table is

In a sandy soil (ϕ' = 35°; γ = 18.0 kN/m3, and γsat = 20.0 kN/m3), the water table is located at a depth of 6 m below the ground level. How deep would you drive a sheet pile to carry out an excavation to 4.0 m depth? Use the simplified approach discussed in Section 18.8, with a factor of safety of 1.5 on passive resistance (i.e., use Kp/1.5).

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