A retaining wall 8m supports a cohesionless soil having a dry density of 1600 kg/m3, angle of shearing resistance is 32 and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine’s formula for active pressure of a cohensionless soil. 1. Determine the nearest value of the total earth thrust on the wall in kN/m if the soil is dry. a. 154.24 kN b. 162.4 kN c. 174.3 kN d. 175.72 kN 2. Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is clogged at 3.5 m below the ground surface. Use the dry unit weight of soil above the water surface. a. 235.440 kN b. 182.567 kN c. 135.881 kN d. 108.765 kN 3 Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is fully clogged for entire wall height. a. 594.453 kN b. 682.567 kN c. 435.881 kN d. 629.760 kN
A retaining wall 8m supports a cohesionless soil having a dry density of 1600 kg/m3, angle of shearing resistance is 32 and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine’s formula for active pressure of a cohensionless soil.
1. Determine the nearest value of the total earth thrust on the wall in kN/m if the soil is dry.
a. 154.24 kN
b. 162.4 kN
c. 174.3 kN
d. 175.72 kN
2. Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is clogged at 3.5 m below the ground surface. Use the dry unit weight of soil above the water surface.
a. 235.440 kN
b. 182.567 kN
c. 135.881 kN
d. 108.765 kN
3 Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is fully clogged for entire wall height.
a. 594.453 kN
b. 682.567 kN
c. 435.881 kN
d. 629.760 kN
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