Principles of Foundation Engineering, SI Edition
9th Edition
ISBN: 9781337672085
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3.4P
Refer to Figure P3.3. Use Eqs. (3.10) and (3.11) to determine the variation of OCR and preconsolidation pressure
FIGURE P3.3
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Students have asked these similar questions
9.30 A laminar boundary layer velocity profile is approximated
by the two straight-line segments indicated in Fig. P9.30. Use the
momentum integral equation to determine the boundary layer
thickness, 88(x), and wall shear stress, 7, 7(x). Compare
these results with those in Table 9.2.
8/2
2U U
3
FIGURE P9.30
Question: A Blasius Exact Solution
Equation For A Laminar Flat-Plate
Boundary Layer Problem Which...
A Blasius exact solution equation for a laminar flat-plate boundary layer problem
which derived from Navier-Stoke equations, could be written as,
ff"-2f"'=0
where f = f(n), =d'fm),
dn?
d'f(n).
df (N) =-
,and f'=-
dn'
dn
U is mainstream fluid velocity and u is fluid velocity in boundary layer.
With suitable boundary conditions, the above equation had been solved by 4th-order
Runge-Kutta numerical integration and the result is tabulated in Table Qla.
TABLE Qla
f'=w/U
f"
7 = y,
VX
0.000
0.000
0.332
0.323
0.267
1
0.166
0.330
0.630
0.846
0.956
0.992
0.998
0.650
1.397
2.310
3.283
0.161
0.064
3
4
0.016
0.002
6
7
4.280
0.001
5.279
6.280
0.999
1.000
0.000
Show that :
CoRe , = 1.27
%3D
1. The following figure shows the stress-displacement results of four direct shear tests
under different vertical stresses.
70
60
o'v=10 psi
50
- o'v=20 psi
40
Δσ'ν-40 psi
o'v=80 psi
30
20
10
0.05
0.1
0.15
0.2
0.25
0.3
shear displ. [in]
Based on the results above, develop the Mohr-Coulomb failure envelope. Indicate the
cohesion (c') and calculate the drained friction angle (o').
shear stress [psi]
Chapter 3 Solutions
Principles of Foundation Engineering, SI Edition
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Refer to Figure P3.3. Use Eqs. (3.10) and (3.11)...Ch. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - Prob. 3.25PCh. 3 - Prob. 3.26PCh. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30PCh. 3 - Prob. 3.31P
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