The slopes of the piles of loose granular material are stabilize by constructing the retaining walls adjoining them and the walls suffered the pressure exerted by this retained material. A retaining wall 7.5 m high with its vertical face supported dry cohesion less backfill. Water table encountered at the bottom one-third (1/3rd) portion of the backfill. The backfill has a total unit weight of 18.1 kN/m3 and the angle of internal resistance equal to 28o. Angle of internal resistance remains unchanged due to submergence. The natural ground surface is horizontal and level with the top of the wall having uniformly distributed load of 32 kN/m2. Assuming the saturated unit weight of soil 21.9 kN/m3, answer the following: i. Calculate resultant of the active earth pressure and its line of action on the wall. ii. Draw Earth Pressure Diagrams (EPD) to show your results.
The slopes of the piles of loose granular material are stabilize by constructing the retaining walls adjoining them and the walls suffered the pressure exerted by this retained material. A retaining wall 7.5 m high with its vertical face supported dry cohesion less backfill. Water table encountered at the bottom one-third (1/3rd) portion of the backfill. The backfill has a total unit weight of 18.1 kN/m3 and the angle of internal resistance equal to 28o. Angle of internal resistance remains unchanged due to submergence. The natural ground surface is horizontal and level with the top of the wall having uniformly distributed load of 32 kN/m2. Assuming the saturated unit weight of soil 21.9 kN/m3, answer the following:
i. Calculate resultant of the active earth pressure and its line of action on the wall.
ii. Draw Earth Pressure Diagrams (EPD) to show your results.
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