For a 36-inch storm sewer pipe, it is desired to have actual depth of flow in the installed pipe as 70% of the diameter. In order to maintain the actual (partial) flow velocity of 10 ft/s, calculate; a) the required slope of the pipe, Slope = ______________ ft/ft, b) and actual flowrate in the sewer pipe, Qactual = _______________ cfs. Use; Manning’s formula for full flow velocity calculation, V = (1.49/n)*Rh(2/3)*S(1/2) Length of conduit = 500 ft n = 0.013
For a 36-inch storm sewer pipe, it is desired to have actual depth of flow in the installed pipe as 70% of the diameter. In order to maintain the actual (partial) flow velocity of 10 ft/s, calculate; a) the required slope of the pipe, Slope = ______________ ft/ft, b) and actual flowrate in the sewer pipe, Qactual = _______________ cfs. Use; Manning’s formula for full flow velocity calculation, V = (1.49/n)*Rh(2/3)*S(1/2) Length of conduit = 500 ft n = 0.013
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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For a 36-inch storm sewer pipe, it is desired to have actual depth of flow in the
installed pipe as 70% of the diameter. In order to maintain the actual (partial) flow velocity of 10
ft/s, calculate;
a) the required slope of the pipe, Slope = ______________ ft/ft,
b) and actual flowrate in the sewer pipe, Qactual = _______________ cfs.
Use;
Manning’s formula for full flow velocity calculation, V = (1.49/n)*Rh(2/3)*S(1/2)
Length of conduit = 500 ft
n = 0.013
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