Design the best cross-section of a trapezoidal canal to irrigate a field of 1000 hectare, where the water supply is 100 (m³/hectare/day). Knowing that the side slope is 1:1 and bed slope of 10 cm/km. Use n = 0.02. Hint: Q = water duty * area = (100*1000) / (24*3600) = 1.157 m³/s Find the relationship bet. b & d. then solve. d

Design the best cross-section of a trapezoidal canal to irrigate a field of 1000 hectare, where the water supply is 100 (m³/hectare/day). Knowing that the side slope is 1:1 and bed slope of 10 cm/km. Use n = 0.02. Hint: Q = water duty * area = (1001000) / (243600) = 1.157 m³/s Find the relationship bet. b & d. then solve. d

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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An agricultural land of 486 ha is to be irrigated for a crop having delta as 120 cm and 17 cm of rainfall occurred during the base period. The discharge in the canal is 2.2 cumecs. The canal should run for 'x' number of days to irrigate the land fully if the conveyance losses are 15%. The value of 'x' will be (Round of nearest integer)
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Show that 1. gamma sat= (e/w)(1+w/1+e) gamma water.2. Gamma dry= Gamma/1+m