(a)Water is flowing at normal depth in a 10 m wide trapezoidal channel with abed slope of 1:3000. The side slopes of the channel are 1H:2V. The channelboundary is made of concrete with Manning's roughness coefficient as0.012. If the flow rate is 10 m/s, calculate the height of a hump in thechannel that would produce critical conditions without a rise in the upstreamwater level.(b)Comment on the upstream water depth in the channel Q3(a), if the providedhump height is more than the value calculated above.(c) Compute the depth of flow (h) in the composite channel section(symmetrical) shown in Figure Q3 when it carries a discharge of 50 m'/s.The bed slope of channel is 1 in 2500, and channel boundary is made ofglazed brick.3m -- १ImBenchingFigure Q3

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Water is flowing at normal depth in a 10 m wide trapezoidal channel with a bed slope of 1:3000. The side slopes of the channel are 1H:2V. The channel boundary is made of concrete with Manning's roughness coefficient as 0.012. If the flow rate is 10 m/s, calculate the height of a hump in the channel that would produce critical conditions without a rise in the upstream water level. (a)

Water is flowing at normal depth in a 10 m wide trapezoidal channel with a bed slope of 1:3000. The side slopes of the channel are 1H:2V. The channel boundary is made of concrete with Manning's roughness coefficient as 0.012. If the flow rate is 10 m/s, calculate the height of a hump in the channel that would produce critical conditions without a rise in the upstream water level. (a)

Structural Analysis

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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)
Water is flowing at normal depth in a 10 m wide trapezoidal channel with a
bed slope of 1:3000. The side slopes of the channel are 1H:2V. The channel
boundary is made of concrete with Manning's roughness coefficient as
0.012. If the flow rate is 10 m/s, calculate the height of a hump in the
channel that would produce critical conditions without a rise in the upstream
water level.
(b)
Comment on the upstream water depth in the channel Q3(a), if the provided
hump height is more than the value calculated above.
(c) Compute the depth of flow (h) in the composite channel section
(symmetrical) shown in Figure Q3 when it carries a discharge of 50 m'/s.
The bed slope of channel is 1 in 2500, and channel boundary is made of
glazed brick.
3m -
- १
Im
Benching
Figure Q3

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