Refer to Figure 15.22. Given: = 0, = 0 ,H = 5m, =

Refer to Figure 15.22. Given: θ = 0, α = 0^ο ,H = 5m, γ = 15 kN/m³ ,ϕ' = 30^ο ,and  δ' = 15^ο. Estimate the passive force, P_p, per unit length of the wall using the K_p values given by Shields and Tolunay’s (1973) method of slices (Table 15.1).

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$' (deg) 0 20 2.04 2.46 3.00 25 30 35 40 45 8' (deg) 5 10 15 20 2.27 2.47 2.64 2.87 2.78 3.08 3.34 3.61 3.44 3.86 4.28 4.68 3.69 4.31 4.91 5.53 4.69 5.46 6.36 7.30 5.83 7.09 8.43 9.89 25 30 35 4.01 5.12 5.81 6.17 6.85 7.61 8.85 8.30 11.49 13.28 40 45 9.39 10.60 12.00 14.40 15.31 17.65 20.36 25.46