A retaining wall with vertical walls 8.00 m high supports the thrust of a sand with a volumetric weight in its natural stratum of 1800 kg/m3 and an angle of internal friction of 35°. The ground surface is horizontal. Determine the thrust on the wall per metre of depth and mark the forces acting on the wall; neglect the passive thrust

7.17 A soil profile consists of a clay layer underlain by a sand layer, as shown in Figure P7.17 If a tube is inserted into the bottom sand layer and the water level rises to 1 m above the ground surface, determine the vertical effec- tive stresses and porewater pressures at A, B, and C. If K, is 0.5, determine the lateral effective and lateral total stresses at A, B, and C. What is the value of the pore- water pressure at A to cause the vertical effective stress there to be zero? GWL |1 m Y- 18.5 kN/m Clay 2m Yu- 19.0 kN/m 1.5 m Yur=17.0 kN/m Sand 2m E

A retaining wall 9 m high supports a cohesionless sandy soil with its face vertical as shown in figure below. find active earth pressure on the wall , Take Yw = 9.81kN / (m ^ 3)

A structure is attached to the ocean floor as shown in the figure below. A 2-m-diameter circular gate/hatch is set at a 30-degree incline on the structure. (Part a) Determine the magnitude (in kN) of the hydrostatic force of the seawater (specific weight = 10.1 kN/m3) on the circular hatch. (Part b) Determine the location of the force as an inclined distance from the free surface, ?? (report the location to three decimal places).