Refer to Figure 14.24. Given: H = 7.5 m, u = 10, = 5, =

Refer to Figure 14.24. Given: H = 7.5 m, u = 10°, α = 5°, γ = 17.9 kN/m³, ϕ' = 28^ο, δ' = 1/2 ϕ' k_h = 0.3, and k_v = 0.
Determine the active force, Pae, per unit length of the retaining wall. Also find the location of the resultant line of action of P_ae.

Data From  Problem 14.24

Consider the retaining wall shown in Figure 14.37. The height of the wall is 5 m, and the unit weight of the sand backfill is 18 kN/m³. Using Coulomb’s equation, calculate the active force, P_a, on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant. Consider the following two cases of wall friction.

Transcribed Image Text:

H = 5 m FIGURE 14.37 Sand = 18 kN/m³ Y c' = 0 $' = 30° 0 = 10⁰ 8' (wall friction)