Question: The figure below represents a backfill behind a smooth vertical retaining wall. Estimate the magnitude and line of action of the lateral active force

The figure below represents a backfill behind a smooth vertical retaining wall.

The figure below represents a backfill behind a smooth vertical retaining wall. Estimate the magnitude and line of action of the lateral active force per meter length of the wall. What would be the reduction in the lateral force if drainage facility is provided to lower the water table to the base of the wall? 4.5 m 0.9 m q= 25 kN/m Saturated clay Ysat 20.2 kN/m, =0 Unconfined comp, strength = 25 kPa Saturated sand Ysat 19.8 kN/m, = 30 c=0

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