Q-1: Figure-1 shows a 4.5-m-high retaining wall. The wall is restrained from yielding. Then find, the following conditions: A) Completely dry soil (no ground water) B) Completely saturated soil system

When movement of a wall under the earth pressures from the backfill was prevented the coefficient of earth pressure was recorded as 0.5. The ratio of the coefficient of passive and active earth pressure of the backfill is

A long heel wall (i.e., no need to check out 24 kN/m³ the heel length) is shown. It can be assumed that Rankine state exists at the vertical face at the heel of the wall. Wall dimensions: H=6 m, D=0, x₁=0.5m, x2=0.5m, x3=1m, X4-3.5m, x5-0.5m. 14 8-0 Soil properties: Y₁-18 kN/m³, 1¹-36°, c₁' = 0 72-20 kN/m³, 02-20°, c₂= 30 kN/m² a) The ground water table is below the base of the wall, and the backfill soil is dry. Calculate the factor of safety of the wall against overturning and sliding. b) Assuming the water table rises up to the ground surface of the backfill during a recalculate the factor of safety of the wall against overturning and sliding. -0 rainstorm -1 D c₂-2/3c₂ 8,-2/342

Find the active lateral force/unit of width and the point of application for a verticalretaining wall with the following data: γ = 110 pcf, Φ= 36° , C = 0 psf, H = 18 ft; Using theCoulomb equation with δ = 20° and (a) horizontal backfill, (b) backfill slope 10° , and (c)backfill slope -10°