Figure Q3 shows a section through a long concrete dam and the associated flow net. The dam is founded in isotropic sand with k = 2.5 x 10 m/s and Ysat =20 kN/m³. a) What is the role of the sheet pile cutoff wall at the heel of the dam? b) Calculate the steady state seepage loss beneath the dam. c) Calculate the uplift thrust on the base of the dam. 6.34mm S X 3 i < lor stable i sig im 1000mm TASUT d) Determine the exit hydraulic gradient. 1.00 m 0,80 m T quicksand 1/2 Datum 13 4 10 Fig. Q3 7 F годи 1.40 m 5.00 m 1 20 m h₂-hi
Figure Q3 shows a section through a long concrete dam and the associated flow net. The dam is founded in isotropic sand with k = 2.5 x 10 m/s and Ysat =20 kN/m³. a) What is the role of the sheet pile cutoff wall at the heel of the dam? b) Calculate the steady state seepage loss beneath the dam. c) Calculate the uplift thrust on the base of the dam. 6.34mm S X 3 i < lor stable i sig im 1000mm TASUT d) Determine the exit hydraulic gradient. 1.00 m 0,80 m T quicksand 1/2 Datum 13 4 10 Fig. Q3 7 F годи 1.40 m 5.00 m 1 20 m h₂-hi
Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN:9781305081550
Author:Braja M. Das
Publisher:Braja M. Das
Chapter15: Braced Cuts
Section: Chapter Questions
Problem 15.6P
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Question
![Figure Q3 shows a section through a long concrete dam and the associated flow net. The
dam is founded in isotropic sand with k=2.5 x 105 m/s and Ysat =20 kN/m³.
a) What is the role of the sheet pile cutoff wall at the heel of the dam?
b) Calculate the steady state seepage loss beneath the dam.
c) Calculate the uplift thrust on the base of the dam.
6.34mm
S
14
X
3
i < lor stable
ision
im
1000mm
d) Determine the exit hydraulic gradient.
1.00 m
0,80 m
quick sand
T 1/2
Datum
13
4
10
Fig. Q3
7
i= Ah
1.40 m
15
5.00 m
1
20 m
h₂-hi](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feca17466-0fa9-473e-8f81-4433d02c1fd7%2Fd5dd0c54-fd87-4f3b-afbd-c9aef17d7ffc%2Flfabj6f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Figure Q3 shows a section through a long concrete dam and the associated flow net. The
dam is founded in isotropic sand with k=2.5 x 105 m/s and Ysat =20 kN/m³.
a) What is the role of the sheet pile cutoff wall at the heel of the dam?
b) Calculate the steady state seepage loss beneath the dam.
c) Calculate the uplift thrust on the base of the dam.
6.34mm
S
14
X
3
i < lor stable
ision
im
1000mm
d) Determine the exit hydraulic gradient.
1.00 m
0,80 m
quick sand
T 1/2
Datum
13
4
10
Fig. Q3
7
i= Ah
1.40 m
15
5.00 m
1
20 m
h₂-hi
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