A trapezoidal channel carries 1.2 m/s of flow on a longitudinal slope of 0.003. If channel surface is based on concrete with trowel finish at minimum flow condition and the side slope is 1.5(H):2(V), estimate the best hydraulic section according to Chezy's approach. (Justify the unstated parameter(s) in your calculation).

A trapezoidal channel carries 1.2 m/s of flow on a longitudinal slope of 0.003. If channel surface is based on concrete with trowel finish at minimum flow condition and the side slope is 1.5(H):2(V), estimate the best hydraulic section according to Chezy's approach. (Justify the unstated parameter(s) in your calculation).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A trapezoidal section of 2 m bottom width, carries a discharge of 4 M3/s. The channel’s raughness is 0.025. What is the condition of the best hydraulic section to calculate the channel bottom slope?
A square concrete conduit having a side of 0.788 m carries water at a rate of 4 m3/s. Using Hazen-Williams formula with C=120, a.Compute for the hydraulic radius b.Compute the hydraulic slope. c.Compute the Head loss if the length of the conduit is 45m.
The trapezoidal channel is to carry 18 m^3/s of flowrate with a bottom slope of 0.0009. Given that Manning’s n is 0.026 and the sides of channel are inclined 63.4° to the vertical, determine the bottom width, depth and velocity for the best hydraulic section.
A circular section channel 3 m in diameter has a depth of 1.0 m and is laid to a gradient of 1:1000 and n = 0.012. A.Compute the rate of flow in cu.m./s (2 decimal places) B. Compute the hydraulic radius of the channel (3 decimal places).
1) A triangular section has a side slope of s = 2, Manning's n = 0.02, Bottom slope of S0 = 0.005, depth, y = 2 m. Using Manning's equation (Eq. 24 in formula sheet) determine the flowrate Q. Use the Table in the last page to calculate A, and Rh (Hydraulic Radius) 2) Do the same for a rectangular section with B0 = 4 m, n = 0.015, S0 = 0.0025, and depth, y = 2 m.
The channel consists of a smooth cement section (m = 0.109) and overflow regions on each side that contain light brush (m = 1.54). If the bottom of the channel has a slope of 0.0015, determine the steady volumetric flow when the depth is 2.5meters. Show step by step solution using Bazin's formula.
In a circular channel 3.0 meters in diameter, flowing over half full, the water surface width is 1.268 meter in length. a. Compute the hydraulic radius. b. The channel is laid on a grade of 16.10 meters per mile; compute its discharge using Manning’s formula with n = 0.030. c. For flow as in (b), compute the C value in the Chezy formula. d. Using C in (c), and for flow as in (b), compute the value of Kutter’s n in the Kutter’s C formula. Simplify your solution, no solution by calculator or shift solve. e. Compute the maximum velocity that may occur for the given circular channel using n as in (d) and Manning’s formula
the incoming flow rate is 100m3/s on a rectangular channel with: depth = 3m width = 4 meters Then, a hydraulic jump occurred along the way. Determine the depth at the hydraulic jump section.
An unsymmetrical trapezoidal channel of most efficient section with one side inclined from horizontal by 35 and the other inclined from vertical by 40 is to be designed to carry a 1.0 cubic meters per second discharge. Determine the flow stage type on the channel if roughness coefficient is 0.030 and average longitudinal slope is 0.175. Use Manning’s equation.
A trapezoidal channel is 6.0m wide and has side slope of 0.5 H:I V. If the bed slope of the channel is 0.0004 and the Manning's n=0.02, find the discharge which can make the channel a hydraulically efficient section.
derive a general expression for the wetted perimeter of a trapezoidal channel in terms of cross-sectional A, depth y and angle of slideslope. prove that Rh=y/2 for the section to have the best hydraulic efficiency
A 6.0 foot wide rectangular channel has a normal depth of 2.45ft what is the cross sectional area of the flow? what is the wetted perimeter? what is the hydraulic radius?