With the SV, L, and ll determined in Problem 17 9, check the overall stability (i e , factor of safety against overturning, sliding, and bearing capacity failure) of the wall For the in situ soil, 2 16 8 kN m 3 , ' 2 20, and c ' 2 55 kN m 2 Problem 17 9 A retaining wall with geotextile reinforcement is 6 m high For the granular backfill, 1 15 9 kN m 3 and ' 1 30 For the geotextile, T all 16 kN m For the design of the wall, determine S V , L, and ll Use FS (B) FS (P) 1 5

Question: With the SV, L, and ll determined in Problem 17.9, check the overall stability (i.e., factor of safety against overturning, sliding, and bearing capacity failure)

With the SV, L, and ll determined in Problem 17.9, check the overall stability (i.e., factor of safety against overturning, sliding, and bearing capacity failure) of the wall. For the in situ soil, γ₂ = 16.8 kN/m³, ϕ'₂ = 20°, and c'₂ = 55 kN/m².

Problem 17.9

A retaining wall with geotextile reinforcement is 6 m high. For the granular backfill, γ₁ = 15.9 kN/m³ and ϕ'₁ = 30°. For the geotextile, T_all = 16 kN/m. For the design of the wall, determine S_V, L, and ll. Use FS_(B) = FS_(P) = 1.5.

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