(5) A cantilever retaining wall of 7 m height shown in figure retains sand. The properties...

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(5) A cantilever retaining wall of 7 m height shown in figure retains sand. The properties of the sand are: e = 0.5, Ø = 30° and G₁ = 2.7. using Rankine's theory determine the active earth pressure at the base when the backfill is; (a) Dry (b) Saturated (c) Submerged and also the resultant active force in each case. In addition determine the total water pressure under the submerged condition. (20 Marks) 7m e = 0.5 G₁ = 2.7 p = 30° Sand A (5) A cantilever retaining wall of 7 m height shown in figure retains sand. The properties of the sand are: e = 0.5, Ø = 30° and G₁ = 2.7. using Rankine's theory determine the active earth pressure at the base when the backfill is; (a) Dry (b) Saturated (c) Submerged and also the resultant active force in each case. In addition determine the total water pressure under the submerged condition. (20 Marks) 7m e = 0.5 G₁ = 2.7 p = 30° Sand A

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