A trapezoidal channel is designed to carry 25 m^3/s on a slope of 0.0015 m/m. The channel is unlined, and in order to prevent erison, the maximum allowable velocity is 1.5 m/s. The side slope must be no steeper than 2H on 1V and the Manning value is 0.03. In order to meet these requirements, What flow denth and bottom width should be used?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A trapezoidal channel is designed to carry 25 m^3/s
on a slope of 0.0015 m/m. The channel is unlined,
and in order to prevent erison, the maximum
allowable velocity is 1.5 m/s. The side slope must be
no steeper than 2H on 1V and the Manning value is
0.03. In order to meet these requirements, What flow
depth and bottom width should be used?
Transcribed Image Text:A trapezoidal channel is designed to carry 25 m^3/s on a slope of 0.0015 m/m. The channel is unlined, and in order to prevent erison, the maximum allowable velocity is 1.5 m/s. The side slope must be no steeper than 2H on 1V and the Manning value is 0.03. In order to meet these requirements, What flow depth and bottom width should be used?
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