The below figure shows the flow net in a soil layer under an impermeable concrete dam with an impermeable cut off wall at its upstream end. The soil underlain by a relative impermeable rock. Take the permeability to be, k = 4.5 x 104 m/s, the number of flow channels to be 4.0, and the retained height to be 12.5m. 30, 20. 10. ol 10. 110. 120. 130, 140. 150. 160. 170. 180 190. 1100. Assumed that soil is homogenous and isotropic with equal vertical and horizontal permeabilities. Determine: a) the total head difference between upstream and downstream b) the loss in total head between any two adjacent equipotential lines c) the flow q under the concrete dam
The below figure shows the flow net in a soil layer under an impermeable concrete dam with an impermeable cut off wall at its upstream end. The soil underlain by a relative impermeable rock. Take the permeability to be, k = 4.5 x 104 m/s, the number of flow channels to be 4.0, and the retained height to be 12.5m. 30, 20. 10. ol 10. 110. 120. 130, 140. 150. 160. 170. 180 190. 1100. Assumed that soil is homogenous and isotropic with equal vertical and horizontal permeabilities. Determine: a) the total head difference between upstream and downstream b) the loss in total head between any two adjacent equipotential lines c) the flow q under the concrete dam
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The below figure shows the flow net in a soil layer under an impermeable concrete dam with
an impermeable cut off wall at its upstream end. The soil underlain by a relative impermeable
rock.
Take the permeability to be, k = 4.5 x 104 m/s, the number of flow channels to be 4.0, and the
retained height to be 12.5m.
30.
20.
10.
ol
10. 110. 120. 30. 140. 150. 160. 170. 180. 190. 1900.
Assumed that soil is homogenous and isotropic with equal vertical and horizontal
permeabilities.
Determine:
a) the total head difference between upstream and downstream
b) the loss in total head between any two adjacent equipotential lines
c) the flow q under the concrete dam
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