Solved Problem on Soil Mechanics

GATE 2013 : Civil Engineering

Q. Two different soil types (Soil 1 and Soil 2) are used as backfill behind a retaining wall as shown in the figure, where γ_t is total unit weight, and c' and φ' are effective cohesion and effective angle of shearing resistance. The resultant active earth forceper unit length (in kN/m) acting on the wall is:

Options: (A) 31.7 (B) 35.2 (C) 51.8 (D) 57.0

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