A concrete dam of 17.5 m base width retains 5 m of water. A sheet pile cut-off is provided at the upstream end of the base of the dam upto a depth of 8 m. The base of the dam is 1.5 m below ground surface and the pervious foundation extends to a depth of 14 m, below which is an impervious stratum. Draw the flow net and compute the seepage flow below the dam per metre length of dam, if the coefficient of permeability is 2 x 10-3 cm/s. compute the uplift pressure along the base of the dam and the exit gradient.
A concrete dam of 17.5 m base width retains 5 m of water. A sheet pile cut-off is provided at the upstream end of the base of the dam upto a depth of 8 m. The base of the dam is 1.5 m below ground surface and the pervious foundation extends to a depth of 14 m, below which is an impervious stratum. Draw the flow net and compute the seepage flow below the dam per metre length of dam, if the coefficient of permeability is 2 x 10-3 cm/s. compute the uplift pressure along the base of the dam and the exit gradient.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A concrete dam of 17.5 m base width retains 5 m of water. A sheet pile cut-off is provided at the upstream
end of the base of the dam upto a depth of 8 m. The base of the dam is 1.5 m below ground surface and
the pervious foundation extends to a depth of 14 m, below which is an impervious stratum. Draw the flow
net and compute the seepage flow below the dam per metre length of dam, if the coefficient of permeability
is 2 x 10-3
cm/s. compute the uplift pressure along the base of the dam and the exit gradient.
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