A double wall sheet pile coffer dam retains a height of water 9 m on one side. A flow net constructed for this structure, driven into a pervious deposit overlain by an impervious ledge, consists of five flow channels and fifteen potential drops. The length of the coffer dam is 90 metres.If the coefficient of permeability of the pervious deposit is 10^–2 mm/s determine the seepage in cubic metres per day.
A double wall sheet pile coffer dam retains a height of water 9 m on one side. A flow net constructed for this structure, driven into a pervious deposit overlain by an impervious ledge, consists of five flow channels and fifteen potential drops. The length of the coffer dam is 90 metres.If the coefficient of permeability of the pervious deposit is 10^–2 mm/s determine the seepage in cubic metres per day.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A double wall sheet pile coffer dam retains a height of water 9 m on one side. A flow net constructed for this structure, driven into a pervious deposit overlain by an impervious ledge, consists of five flow channels and fifteen potential drops. The length of the coffer dam is 90 metres.If the coefficient of permeability of the pervious deposit is 10^–2 mm/s determine the seepage in cubic metres per day.
a.
621.4 m^3/s
b.
946.5 m^3/s
c.
101.0 m^3/s
d.
233.3 m^3/s
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