Determine the dimension of the channel using tractive force method by using a ratio of Boly = 8 and the sketch of channel cross section.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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5- A moderately curved channel with a slightly rounded non-cohesive bed material with a
particle size of d = 15 mm carrying a discharge of 30 m³/s. The longitudinal slope of the
channel is 0.002 and the side wall slopes are equal to 60% of the angle of repose.
(a) Determine the dimension of the channel using tractive force method by using a ratio of
Boly = 8 and the sketch of channel cross section.
(b) Does the channel erode?
(c) Provide your engineering comments to prevent the possible erosion (if any) and
improve the channel design.
Note: Use the Strickler's formula to calculate Manning's value.
Use the Swammy and Mittal's formula to estimate the critical shear stress.
Transcribed Image Text:5- A moderately curved channel with a slightly rounded non-cohesive bed material with a particle size of d = 15 mm carrying a discharge of 30 m³/s. The longitudinal slope of the channel is 0.002 and the side wall slopes are equal to 60% of the angle of repose. (a) Determine the dimension of the channel using tractive force method by using a ratio of Boly = 8 and the sketch of channel cross section. (b) Does the channel erode? (c) Provide your engineering comments to prevent the possible erosion (if any) and improve the channel design. Note: Use the Strickler's formula to calculate Manning's value. Use the Swammy and Mittal's formula to estimate the critical shear stress.
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