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A retaining wall with a smooth vertical back retains silt backfill for a depth of 6 m. The backfill has a horizontal surface having following properties c'= 10 kPa, = 20° and y = 17 kN/m³. Calculate the percentage decrement in the magnitude of thrust on the wall when the wall is restrained against yielding to when the wall is free to yield (assume development of tension crack when wall yields). A 32.8% B 45.7% C 50.3% D 61.4%

A retaining wall with a smooth vertical back retains silt backfill for a depth of 6 m. The backfill has a horizontal surface having following properties c'= 10 kPa, = 20° and y = 17 kN/m³. Calculate the percentage decrement in the magnitude of thrust on the wall when the wall is restrained against yielding to when the wall is free to yield (assume development of tension crack when wall yields). A 32.8% B 45.7% C 50.3% D 61.4%

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A retaining wall with a smooth vertical back retains silt backfill for a depth of 6 m. The backfill has a horizontal surface having following properties c'= 10 kPa, = 20° and y = 17 kN/m³. Calculate the percentage decrement in the magnitude of thrust on the wall when the wall is restrained against yielding to when the wall is free to yield (assume development of tension crack when wall yields). A 32.8% B 45.7% C 50.3% D 61.4%
Transcribed Image Text:A retaining wall with a smooth vertical back retains silt backfill for a depth of 6 m. The backfill has a horizontal surface having following properties c'= 10 kPa, = 20° and y = 17 kN/m³. Calculate the percentage decrement in the magnitude of thrust on the wall when the wall is restrained against yielding to when the wall is free to yield (assume development of tension crack when wall yields). A 32.8% B 45.7% C 50.3% D 61.4%
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