Question 1 The sketch below represents a trapezoidal open channel used to manage storm water in A small town in KZN that contributes a discharge Q of 30 m³/sec. The channel base width is 1.5m and has side slopes of 1:2 and a bed slope of 1.5%. Use manning's coefficient (n) = 0.015. Estimate the height of the water after the heavy rain by using the Bisection method. The water height is between 1 m and 2 m. Do five (5) iterations Water level Useful formulae: Q = ² * A* R³* R² * S² n h R = 4 (Area/wetted perimeter) Note: For this channel section A and P h = height of water (requires estimation) b = bottom width of channel (1.5 m) are given by Sketch not to scale A = bh + 2h² P = b + 2hv1 + 2²

Question 1 The sketch below represents a trapezoidal open channel used to manage storm water in A small town in KZN that contributes a discharge Q of 30 m³/sec. The channel base width is 1.5m and has side slopes of 1:2 and a bed slope of 1.5%. Use manning's coefficient (n) = 0.015. Estimate the height of the water after the heavy rain by using the Bisection method. The water height is between 1 m and 2 m. Do five (5) iterations Water level Useful formulae: Q = ² * A* R³* R² * S² n h R = 4 (Area/wetted perimeter) Note: For this channel section A and P h = height of water (requires estimation) b = bottom width of channel (1.5 m) are given by Sketch not to scale A = bh + 2h² P = b + 2hv1 + 2²

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.

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