Design a most economic trapezoidal section of an irrigation canal

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Design a most economic trapezoidal section of an irrigation canal
Page 2 of 4
passing through non-alluvial soil having the following data.
Assume reasonable values of bed slope and freeboard for the canal.
Discharge of the canal = 20 cumec
Permissible mean velocity = 0.85 m/s
Bazin's constant, K = 1.3
Side slope = 1.5:1
Also calculate the percentage of earthwork can be saved if the canal
is to be constructed as a lined one. Consider K=0.5 for the lined
section. Given equation, A= 2.088 D² and P-4.176D for 1.5H:1V
lined sections. Bazin's formula, C=87/(1+K/VR)
Transcribed Image Text:Design a most economic trapezoidal section of an irrigation canal Page 2 of 4 passing through non-alluvial soil having the following data. Assume reasonable values of bed slope and freeboard for the canal. Discharge of the canal = 20 cumec Permissible mean velocity = 0.85 m/s Bazin's constant, K = 1.3 Side slope = 1.5:1 Also calculate the percentage of earthwork can be saved if the canal is to be constructed as a lined one. Consider K=0.5 for the lined section. Given equation, A= 2.088 D² and P-4.176D for 1.5H:1V lined sections. Bazin's formula, C=87/(1+K/VR)
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