EBK PRINCIPLES OF FOUNDATION ENGINEERIN
8th Edition
ISBN: 9780100547056
Author: Das
Publisher: YUZU
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Chapter 2, Problem 2.26P
To determine
Find the pore water pressure at failure
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For the design of a shallow foundation, given the following:
Soil: ' = 20°
c' = 52 kN/m²
Unit weight, y = 15 kN/m³
Modulus of elasticity, E, = 1400 kN/m²
Poisson's ratio, μs = 0.35
Foundation: L=2m
B=1m
Df = 1 m
Calculate the ultimate bearing capacity. Use the equation:
1
-
qu = c' NcFcs Fcd Fcc +qNqFqsFqdFqc + ½√BN√Fãs F√dƑxc
2
For '=20°, Nc = 14.83, N₁ = 6.4, and N₁ = 5.39.
(Enter your answer to three significant figures.)
qu =
kN/m²
A 2.0 m wide strip foundation carries a wall load of 350 kN/m in a clayey soil where
y = 15 kN/m³, c' = 5.0 kN/m² and ' = 23°. The foundation depth is 1.5 m. For ' = 23°:
Nc = 18.05; N₁ = 8.66; Ny
=
=
= 8.20.
Determine the factor of safety using the equation below.
qu= c' NcFcs FcdFci+qNqFqsFq
1
F
+
gd.
'qi
2
·BN√·
FF
γί
Ysyd F
(Enter your answer to three significant figures.)
FS
=
2P
-1.8 m-
-1.8 m-
-B
Wo
P
-1.8 m-
C
Chapter 2 Solutions
EBK PRINCIPLES OF FOUNDATION ENGINEERIN
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - For a normally consolidated soil, the following is...Ch. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27P
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