Question 31 A flownet is given below for flow under a concrete dam. The dam is 100 m long and has two 10 m sheet piles driven partially into the granular soil layer. The datum is at the surface of impervious bedrock, shown in the figure. The water level is H = 8 m above soil layer in the upstream and at the soil layer surface in the downstream. Calculate the uplift pressure at Point E under the dam. Unit: kPa 40 m Number of equipotential drops H: m 10 m 2 m sheet pile 10 m sheet pile 2 m 4. 11 B C D. 8.5 m (5.4) 6.4 6.9 (10.4) 7.4) 30 m (9.4) Datum C0.4 Impervious A F Scale: 0 10 m > E E.
Question 31 A flownet is given below for flow under a concrete dam. The dam is 100 m long and has two 10 m sheet piles driven partially into the granular soil layer. The datum is at the surface of impervious bedrock, shown in the figure. The water level is H = 8 m above soil layer in the upstream and at the soil layer surface in the downstream. Calculate the uplift pressure at Point E under the dam. Unit: kPa 40 m Number of equipotential drops H: m 10 m 2 m sheet pile 10 m sheet pile 2 m 4. 11 B C D. 8.5 m (5.4) 6.4 6.9 (10.4) 7.4) 30 m (9.4) Datum C0.4 Impervious A F Scale: 0 10 m > E E.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 31
A flownet is given below for flow under a concrete dam. The dam is 100 m long and
has two 10 m sheet piles driven partially into the granular soil layer. The datum is at
the surface of impervious bedrock, shown in the figure. The water level is H = 8 m
above soil layer in the upstream and at the soil layer surface in the downstream.
Calculate the uplift pressure at Point E under the dam. Unit: kPa
40 m
Number of
equipotential
drops
H: m
10 m
sheet pile
2 m
10 m
sheet pile o
2 m9
Y
4B
D
8.5 m
(5.4)
6.4)
(10.4)
3.5
30 m
(9,4)
(8.
Datum
C' 0.4
Impervious
A
F
Scale: 0
10 m
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