Principles Of Geotechnical Engineering, Si Edition
9th Edition
ISBN: 9781305970953
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 9, Problem 9.8P
To determine
Find the factor of safety against heaving at point A.
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2. A site is underlain by a 5m-thick layer of clay. Below the layer of clay lies a 7m-thick layer of sand. The water table is
located 2m below the ground surface. Draw the profile. Then, calculate the vertical effective stress at a point located 6m
below the ground surface. Show your work and circle the answer.
***The answer includes:
1. The correct dimension of variables is: F: MLT^-2, v: LT^-1, μ:ML^-1T^-1, ρ: ML^-3, w: L
2. Choice of repeating variables: (w,v,ρ). Choice does NOT include F. Stick with choice throughout.
3. # pi terms = # variables- # dimensions = 5-3=2.
4. π1= F/w^2v^2ρ
5. π2= μ/wvp
These are the correct answers for the problem, I just need the work involved in solving it
The cross-section shown is used to support the loads on
the beam below. The moment of inertia of the section is |=
1384 in4 and distance of the centroid of the section from
the bottom is y = 5.8 in.
[MA=4800 lb-ft, w=600 lb/ft, P=1400 lb, a=5ft,b=7ft,c=
2 ft,d=5ft]
Ma
b
ཅ་
d
15 in
1.5 in
1.5 in.
2 in.
k11 in.
Cross section of the beam
a) Construct the complete shear-force and
bending-moment diagrams for the beam and
determine the maximum positive bending
moment in the beam.
b) determine the maximum negative bending
moment in the beam.
c) Determine the maximum tension bending
stress at any location along the beam.
d) Determine the maximum compression
bending stress at any location along the beam.
Chapter 9 Solutions
Principles Of Geotechnical Engineering, Si Edition
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