In Problem 17.1, if there is a possibility that the soil in front of the wall will be removed sometime later, neglect the passive resistance and compute the factors of safety.

Problem 17.1

Figure P17.1 shows a gravity retaining wall retaining a granular (c' = 0) backfill. The same soil is present at the bottom of the wall and on the left. The unit weight and the friction angle of the backfill are 18.5 kN/m³ and 35°, respectively. The unit weight of the concrete is 24.0 kN/m³ and δ' = 2/3 ϕ'. Determine the factors of safety with respect to overturning, sliding, and bearing capacity failure.

Figure P17.1

Transcribed Image Text:

15° 5.0 m 1.0 m 0.5 m K1.5 m > 2.0 m