A retaining wall 5 m high was designed to stabilize a slope of 15°. The back of the wall is inclined 10° to the vertical and may be assumed to be rough, with ? = 20°. The soil parameters are ϕci = 30° and  γsat =17.5 kN/m3.After a flood, the groundwater level, which is usually below the base of the wall, rose to the surface. Calculate the lateral force on the wall. Neglect seepage effects. please solve this

The following figure shows a section of an anchored retaining wall embedded into a saturated stiff clay layer. The sand has a unit weight of = 18 kN/m³, c' = 0 kPa and o' = 34º. The clay has a unit weight of = 20 kN/m³, c₁ = 80 kPa and = 0°. A uniform pressure of 40 kPa is applied on the soil surface. The short term stability of the wall is considered in an undrained analysis. Use the Rankin's theory of lateral earth pressure to determine the active and passive horizontal stresses. You should apply the requirements of AS 4678 and the partial factors of safety method in estimation of soil pressures. Assume the soil is in-situ and use a structural classification factor of ₁ = 1. 3m 1m Water table 1.5m 40 kPa Not to Scale Sand Clay Ta

(Solve the following exercise, showing and explaining step by step to its resolution). An 8.50 m high retaining wall is built to support a sandy silt with a volumetric weight of 1850 kg/m3 and an angle of internal friction of 28°. The silt also has a cohesion of 1300 kg/m2. The ground surface is horizontal. The effect of the friction of the wall is neglected. Determine the pressure at the base of the screen.

d=15

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

a. For the vertical wall shown (no GWT, no interface friction), determine and plot the Ko, active, and passive lateral stress distributions acting on the wall b.Suppose the groundwater table in Problem 1 rises to a depth of 4m below the surface (on both sides or the wall) and assume the wall Is under active loading conditions. Assume that soil above the groundwater table Is dry, and that Y sat = 20 kN/m° • Determine and plot the water pressure and at-rest lateral earth pressure acting on the wall. Show the pressure distributions separately (not combined into one distribution). wall.