Question: A 5 m wide braced excavation is made in a saturated clay, as shown in Figure P19.1, with the following properties: c = 20 kN/m

A 5 m wide braced excavation is made in a saturated clay, as shown in Figure P19.1, with the following properties: c = 20 kN/m², ϕ = 0, and γ = 18.5 kN/m³. The struts are spaced at 5 m center to center in plan.

a. Determine the strut forces.

b. Determine the section modulus of the sheet pile required, assuming σ_all = 170 MN/m².

c. Determine the maximum moment for the wales at levels B and C.

Figure P19.1

5 m [1m A 3 m В 2 m C 1 m

5 m [1m A 3 m 2 m C 1 m

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