1. Consider a rectangular channel section having a length of 500 feet. The width of the channel is constant at b = 25 feet. The slope of the channel bottom is S, = 0.003. The flow in the channel is Q = 2,000 cubic feet per second (cfs) and the velocity at section 1 is v; = 10 feet per second (fps). Neglecting energy losses, apply the energy eauation between sections 1 and 2 to determine: a) the depths of flow yi and y2 in feet at sections 1 and 2, respectively. b) the cross-sectional areas A, and Az of the flow at sections 1 and 2, respectively. c) the volumetric flowrate Qz at section 2 in cubic feet per second. d) the velocity vz at section 2 in feet per second.

1. Consider a rectangular channel section having a length of 500 feet. The width of the channel is constant at b = 25 feet. The slope of the channel bottom is S, = 0.003. The flow in the channel is Q = 2,000 cubic feet per second (cfs) and the velocity at section 1 is v; = 10 feet per second (fps). Neglecting energy losses, apply the energy eauation between sections 1 and 2 to determine: a) the depths of flow yi and y2 in feet at sections 1 and 2, respectively. b) the cross-sectional areas A, and Az of the flow at sections 1 and 2, respectively. c) the volumetric flowrate Qz at section 2 in cubic feet per second. d) the velocity vz at section 2 in feet per second.

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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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

1. Consider a rectangular channel section having a length of 500 feet. The width of the channel is constant at
b = 25 feet. The slope of the channel bottom is S, = 0.003. The flow in the channel is Q = 2,000 cubic feet
per second (cfs) and the velocity at section 1 is v; = 10 feet per second (fps). Neglecting energy losses,
apply the energy eauation between sections 1 and 2 to determine:
a) the depths of flow yi and y2 in feet at sections 1 and 2, respectively.
b) the cross-sectional areas Az and Az of the flow at sections 1 and 2, respectively.
c) the volumetric flowrate Qz at section 2 in cubic feet per second.
d) the velocity v2 at section 2 in feet per second.

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