The dam and flow nets shown in Figure below. The dam has two 10 m sheet piles driven partially into the granular soil layer. Datum is at downstream water level. Determine (i) the quantity of seepage loss under the dam in m³/s/m (assume k-2 x 103 cm/s). (ii) the exit gradient at point X (provide your answer in two decimal points), (iii) the uplift pressure at point C and (iv) the factor of safety with respect to piping. 30 m BR Impervious 8m 1m O 2 10 m sheet pile 4B 40 m C 0.4 1 m D 5.4 6.4 E 69 10 m sheet pile X F TY 8.5 m 8.4 Scale: 0 Number of equipotential drops 7 Datum 10.4 KXK 10 m
The dam and flow nets shown in Figure below. The dam has two 10 m sheet piles driven partially into the granular soil layer. Datum is at downstream water level. Determine (i) the quantity of seepage loss under the dam in m³/s/m (assume k-2 x 103 cm/s). (ii) the exit gradient at point X (provide your answer in two decimal points), (iii) the uplift pressure at point C and (iv) the factor of safety with respect to piping. 30 m BR Impervious 8m 1m O 2 10 m sheet pile 4B 40 m C 0.4 1 m D 5.4 6.4 E 69 10 m sheet pile X F TY 8.5 m 8.4 Scale: 0 Number of equipotential drops 7 Datum 10.4 KXK 10 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The dam and flow nets shown in Figure below. The dam has two 10 m sheet piles driven partially into the granular soil layer. Datum is at downstream water level.
Determine (i) the quantity of seepage loss under the dam in m³/s/m (assume k=2 x 10-³ cm/s). (ii) the exit gradient at point X (provide your answer in two decimal
points), (iii) the uplift pressure at point C and (iv) the factor of safety with respect to piping.
30 m
Impervious
8m
1m
3
10 m
sheet pile
4 B
40 m
5 C
C 0.4
1 m
D
(5.4) (6.4
E
F
6,9
7.4)
10 m
sheet pile
X
F
TY
8.5 m
(8.4)
(9.4
Scale: 0
Number of
equipotential
drops
(10.4)
Datum
KXK
10 m
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