72 a) The ground water table is below the base of the wall, and the backfill soil is dry. Calculate the factor of safety of the wall against overturning and sliding. b) Assuming the water table rises up to the ground surface of the backfill during a rainstorm, recalculate the factor of safety of the wall against overturning and sliding.

72 a) The ground water table is below the base of the wall, and the backfill soil is dry. Calculate the factor of safety of the wall against overturning and sliding. b) Assuming the water table rises up to the ground surface of the backfill during a rainstorm, recalculate the factor of safety of the wall against overturning and sliding.

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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Question

100%

A long heel wall (i.e., no need to check out 24 kN/m³
the heel length) is shown. It can be
assumed that Rankine state exists at the
vertical face at the heel of the wall.
Wall dimensions:
H=6 m, D=0,
x₁=0.5m, x2=0.5m, x3=1m,
X4-3.5m, x5-0.5m.
14
8-0
Soil properties:
Y₁-18 kN/m³, 1¹-36°, c₁' = 0
72-20 kN/m³, 02-20°, c₂= 30 kN/m²
a) The ground water table is below the base of the wall, and the backfill soil is dry.
Calculate the factor of safety of the wall against overturning and sliding.
b) Assuming the water table rises up to the ground surface of the backfill during a
recalculate the factor of safety of the wall against overturning and sliding.
-0
rainstorm
-1
D
c₂-2/3c₂
8,-2/342

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