A slope is to be constructed at an angle of 30° to the horizontal from a soil having the properties, C = 15 kN/m2, ϕ = 22.5°, γ = 19 kN/m3. Taylor’s stability number is 0.046. If a factor of safety (with respect to cohesion) is 1.5, then the safe height of the slope will be _______
1
25.8 m
2
19.1 m
3
17.2 m
4
11.5 m
5
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