A trapezoidal channel is 6.0m wide and has side slope of 0.5 H:I V. If the bed slope of the channel is 0.0004 and the Manning's n=0.02, find the discharge which can make the channel a hydraulically efficient section.

Fundamentals Of Construction Estimating
4th Edition
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Pratt, David J.
Chapter3: Measuring Quantities Generally
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A trapezoidal channel is 6.0m wide and has side slope of 0.5 H:I V. If the bed slope of the channel is 0.0004 and the Manning's n=0.02, find the discharge which can make the channel a hydraulically efficient section.
B¸ = 2y.(√1+m² − m)
-
e
A₂ =(B₂+my) ye
R₁ = Ye
2
9
› B = Channel width of bottom › A₂ = Area
Transcribed Image Text:B¸ = 2y.(√1+m² − m) - e A₂ =(B₂+my) ye R₁ = Ye 2 9 › B = Channel width of bottom › A₂ = Area
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