Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 16, Problem 16P
To determine
The critical depth and maximum channel slope at which subcritical flow can occur.
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Consider the flow of water through a 12-ft-wide unfinished-concrete rectangular channel with a bottom slope of 0.5°. If the flow rate is 300 ft3/s, determine if the slope of this channel is mild, critical, or steep. Also, for a flow depth of 3 ft, classify the surface profile while the flow develops.
Qle: A flow rate of 0.4m ^ 3 /sec is to be carried in an open channel at a velocity of 1.5 m/sec. If the channel cross section is trapezoidal with water depth equal to the width of the channel bottom and side slope of 1:1. Manning roughness coefficient is 0.03.
Determine:
a) The bottom width
b) The channel bed slope
) Determine the critical flow depth in a long length of lined trapezoidal channel of base width of 3.5 m and a side slopes of 1:1 when the flow rate is 20 m3/s. the normal depth is 1.727m.
Chapter 16 Solutions
Traffic and Highway Engineering
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