A trapezoidal channel having side slope (1:1) it is required to discharge 1.478 m3/sec of water per each square meter of channel area, bed slope (1 to 1000). If this channel is unlined and the value of C=44 and when this channel is lined with concrete the value C=60. The cost per cubic meter of excavation is four times the cost per square meter of lining. The channel is to be the most efficient one find whether the lined channel or the unlined channel will be cheaper what will be the dimensions of the economical channel

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A trapezoidal channel having side slope (1:1) it is required to discharge 1.478 m3/sec of water per each square meter of channel area, bed slope (1 to 1000). If this channel is unlined and the value of C=44 and when this channel is lined with concrete the value C=60. The cost per cubic meter of excavation is four times the cost per square meter of lining. The channel is to be the most efficient one find whether the lined channel or the unlined channel will be cheaper what will be the dimensions of the economical channel

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