MindTap Engineering for Das/Sobhan's Principles of Geotechnical Engineering, SI Edition, 9th Edition, [Instant Access], 1 term (6 months)
9th Edition
ISBN: 9781305971226
Author: Braja M. Das; Khaled Sobhan
Publisher: Cengage Learning US
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Chapter 9, Problem 9.10P
To determine
Find the required height (h) of water inside the cut in order to ensure a factor of safety of 1.5.
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b- Mark the following statement with True or False:
1. The protection works are now designed in respect to the scour depth.
2. Bligh's creep coefficient "C" depends upon the bed material.
3. The flow through a culvert can an open channel flow exist only.
4. Any hydraulic structure should be checked and designed for surface flow and
subsurface flow.
5. The depth before the jump is called the sequent depth and that after the jump is
called the initial depth.
EXAMPLE 9.2
A cut is made in a stiff saturated clay that is underlain by a layer of sand under arte-
sian pressure (Figure 9.6).
21 ft
a. Assume h = 0, and calculate the maximum depth of cut H that can be made
in the clay.
b. Assume H = 15 ft and h = 0. What should the magnitude of the height of
water h be so that stability is not lost?
H
6 ft
FIGURE 9.6
Saturated clay
Sand
Ysat = 120 lb/ft³
13.5 ft
Ysat = 114 lb/ft³
i need the answer quickly
Chapter 9 Solutions
MindTap Engineering for Das/Sobhan's Principles of Geotechnical Engineering, SI Edition, 9th Edition, [Instant Access], 1 term (6 months)
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