Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.18QPP
A 9 ft thick fill is to be placed on the soil shown in Figure 3.22. Once it is compacted, this fill will have a unit weight of
Figure 3.22 Soil profile for Problem 3.18.
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Students have asked these similar questions
Following are the data of gauge and discharge collected at a particular section of the river by stream gauging operation.
Gauge reading
Discharge
Gauge reading
Discharge
(m)
(cms)
(m)
(cms)
7.65
15
8.48
170
7.70
30
8.98
400
7.77
57
9.30
600
7.80
39
9.50
800
7.90
60
89
10.50
1500
7.91
100
11.10
2000
8.08
150
11.70
2400
1. Develop a rating curve for this stream at this section for use in estimating the discharge for a known gauge reading and fit a
linear regression equation for use in estimation of stage for a known value of discharge. Use a value of 7.50 as the gauge
reading corresponding to zero discharge. (20 pts) Equation 1 arith
2. What is the coefficient of correlation of the derived relationship? (10 pts) R2² arith
Equation 2 log
R2 log
3. Determine the stage for a discharge of 3500 cms (5 pts)
4. Determine the discharge for a stage of 15 m (5 pts)
NB Do both arithmetic and logarithmic plots
Q2/ A (2m x 4 m) rectangular flexible foundation is placed above the ground
surface (G.S) for two layers of clay, each layer 10 m thick. The modulus of
Elasticity (E.) of the upper layer is 13 MN/m² and that of the lower layer is
15 MN/m². The Poisson ratio is (u, = 0.6) for the two layers. The pressure (stress) of
100 kN/m²is distributed along the surface of foundation. Determine the rigid
immediate settlement at the corner of the foundation using Elastic theory method?
Q1/ Find the maximum allowable load for a square foundation (3 m x 3 m) placed
vertically in cohesive soil? (Use Terzaghi equation)
Note:
Yt=Yeat=18 kN/m³
Depth of foundation = 1.5 m
Depth of water table below the ground surface = 0.8 m
Factor of safety 3
C=20
Yw = 10 kN/m³
=
No vertical or inclined loads
Chapter 3 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 3 - Explain the difference between moisture content...Ch. 3 - A certain saturated sand has a moisture content...Ch. 3 - Consider a soil that is being placed as a fill and...Ch. 3 - A sample of soil has a volume of and a weight of...Ch. 3 - A site is underlain by a soil that has a unit...Ch. 3 - The sub-surface profile at a certain site is shown...Ch. 3 - A vertical load of 300 kN is applied to a area at...Ch. 3 - A vertical load of 20 k is applied to a area at...Ch. 3 - 3m3m footing is to be built on the surface of a 15...Ch. 3 - A 3 ft square footing carries a sustained load of...
Ch. 3 - A 2m thick fill is to be placed on the soil shown...Ch. 3 - Estimate the effective friction angle of the...Ch. 3 - Explain the difference between the drained...Ch. 3 - A soil has c=5 kPa and =32. The effective stress...Ch. 3 - A footing with an embedment of 2 m is embedded in...Ch. 3 - Prob. 3.16QPPCh. 3 - Prob. 3.17QPPCh. 3 - A 9 ft thick fill is to be placed on the soil...
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