A concrete lined trapezoidal irrigation canal has a bottom width of 10 m, side slopes of 1 h: 1 V and longitudinal bottom slope of 0.0005. If the channel is several kilometres long, what is the flow depth near the downstream end for a flow of 60 m³/s under free fall condition?

A concrete lined trapezoidal irrigation canal has a bottom width of 10 m, side slopes of 1 h: 1 V and longitudinal bottom slope of 0.0005. If the channel is several kilometres long, what is the flow depth near the downstream end for a flow of 60 m³/s under free fall condition?

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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Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

Question

A concrete lined trapezoidal irrigation
canal has a bottom width of 10 m,
side slopes of 1 h: 1 V and longitudinal
bottom slope of 0.0005. If the channel is
several kilometres long, what is the flow
depth near the downstream end for a
flow of 60 m³/s under free fall condition?

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