Question: Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75 m, and the unit weight of the sand backfill is

Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75 m, and the unit weight of the sand backfill is 18.7 k N/m3. Using Coulomb's equation, calculate the active force, Pa, on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant.
a. Î´' = 14°
b. Î´' = 21°

Sand = 18.7 kN/m3 c' =0 H= 975 m 34 =12 8' (wall friction)

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