An irrigation channel is to carry a full supply discharge of 30m³ /sec at a velocity of 1.75 m/ sec. The side slopes are to be 1H: 1V. The ratio of full supply depth to bed width is to be 1:6. Assuming the Manning's 'n' as 0.018, calculate the full supply depth, bed width and bed slope of the channel.

An irrigation channel is to carry a full supply discharge of 30m³ /sec at a velocity of 1.75 m/ sec. The side slopes are to be 1H: 1V. The ratio of full supply depth to bed width is to be 1:6. Assuming the Manning's 'n' as 0.018, calculate the full supply depth, bed width and bed slope of the channel.

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

Given the image of the open channel below and the accompanying geometry, determine the flow (m/s) to two decimal places using Manning's equation. Assume the channel material is grass, use the lowest number. Slope is 3.5% y x= 5m y=0.36m
QU/ Incritical flow if z=2 and n=0.03 find Q?
Note:hand written solution should be avoided.
A rectangular channel of width 550 mm has a discharge of 0.1 m/s and a uniform flow depth of 250 mm. The channel has an adjustable bottom slope with the value of Cequal to 55. Calculate the slope of the channel and the convenience of fume.
7.10
Asap
Civil Engineering 1. A main irrigation canal with a bed width of 2.5 meters and a side slope of 1.5 vertical, 2 horizontal is to be constructed at a uniform land slope/gradient. The capacity of the stream is 35 m³/s. If n=0.025, determine depth and the slope of the land. Show the full solutions and formula used.
OPEN CHANNEL FLOW Obtain an expression for the depth of flow in a circular channel which gives maximum discharge for a given longitudinal slope and constant value of Manning's CO#2 2 constant n.
A wide river with a water surface elevation 1/8000 of depth of flow D. If the depth of flow in the river is decreased by one third and the surface slope is decreased by 40%. If he ratio of the discharge is 2.58. Determine the percentage change in discharge. A 70.25% B-61.24% C 61.24% D -70.25%
A trapezoidal channel having side slopes of 1:1 and bed slope of 1 in 805 is required to carry a discharge of 0.001242 m3/min. Find the dimensions of the channel for minimum cross-section. Take Chezy’s constant as 50.