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A retaining wall with a smooth vertical back retains silt backfill for a depth of 6m. The backfill has a horizontal surface having following properties c = 10kPa, = 20° and N y = 17k. Calculate the percentage decrement in the magnitude of thrust on the m 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 6m. The backfill has a horizontal surface having following properties c = 10kPa, = 20° and N y = 17k. Calculate the percentage decrement in the magnitude of thrust on the m 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 6m. The backfill has a horizontal surface having following properties c = 10kPa, = 20° and N y = 17k. Calculate the percentage decrement in the magnitude of thrust on the m 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 6m. The backfill has a horizontal surface having following properties c = 10kPa, = 20° and N y = 17k. Calculate the percentage decrement in the magnitude of thrust on the m 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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