Refer to the retaining wall in Problem 15.1. Estimate the passive force, P_p, per unit length of the wall using Sokolowskiı˘ (1965) solution by the method of characteristics (Table 15.3).

Data From Problem 15.1

A retaining wall has a vertical back face with a horizontal granular backfill. Given: H =  6 m, γ = 18.5 kN/m³, ϕ' = 40^ο, and δ' = 1/2 ϕ'. Estimate the passive force, P_p, per unit length of the wall using Terzaghi and Peck’s (1967) wedge theory (Figure 15.4).

Transcribed Image Text:

o' (deg) 20 30 40 8' (deg) 10 20 15 30 20 40 K₂ 2.55 3.04 4.62 6.55 9.68 18.27