engineering recuitment GATE CE 2023-24 Test Series Soil Mechanics and Foundation Engineering Earth Pressure
A retaining wall (acted upon by active thrust) 20 m high having smooth vertical back retains a soil having c’ = 25 kN/m2 and ϕ’ = 20. To increase the critical depth of unsupported cut by 10%, the ϕ’ required will be _____ (degrees).Take γ of soil = 18 kN/m3
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