Problem 8 - 11 A trapezoidal flume with side slope of 1:1 carries 225 ft3/s of water at a mean velocity of 3 ft/s. The canal is laid on a slope of 0.0002 with n = 0.015. Determine the normal depth of the canal in feet.

Problem 8 - 11 A trapezoidal flume with side slope of 1:1 carries 225 ft3/s of water at a mean velocity of 3 ft/s. The canal is laid on a slope of 0.0002 with n = 0.015. Determine the normal depth of the canal in feet.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Problem 8-11
A trapezoidal flume with side slope of 1:1 carries 225 ft3/s of water at a mean
velocity of 3 ft/s. The canal is laid on a slope of 0.0002 with n = 0.015.
Determine the normal depth of the canal in feet.
Solution
Q= A v
225 = A(3)
A = 75 ft2 = 6.97 m2
d.
b.
A = bd + d = 6.97
> Eq. (1)
R2/351/2
v = 3 ft/s = 0.915 m/s
R/3(0.0002)/2
0.015
0.915 =

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