Q1( b) A float-finish concrete channel with bottom width of 3 m carries 3.5 m³/s of flow on bottom slope of 0.0003. Propose a cross section for the channel. Using the proposed shape section for this channel, compute : (i) Critical depth of flow (ii) Critical bottom slope of channel (iii) State of flow based on Froude number when depth of flow is 2.5 m (iv)Alternate depth of flow for the same specific energy in Ql(b)(iii) and the corresponding Froude number (v) If a trapezoid section is used, analyse proportions for the most efficient trapezoid section given that the side slope is not fixed.
Q1( b) A float-finish concrete channel with bottom width of 3 m carries 3.5 m³/s of flow on bottom slope of 0.0003. Propose a cross section for the channel. Using the proposed shape section for this channel, compute : (i) Critical depth of flow (ii) Critical bottom slope of channel (iii) State of flow based on Froude number when depth of flow is 2.5 m (iv)Alternate depth of flow for the same specific energy in Ql(b)(iii) and the corresponding Froude number (v) If a trapezoid section is used, analyse proportions for the most efficient trapezoid section given that the side slope is not fixed.
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter16: Highway Drainage
Section: Chapter Questions
Problem 16P
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Q1( b) A float-finish concrete channel with bottom width of 3 m carries 3.5 m³/s of flow on bottom slope of 0.0003. Propose a cross section for the channel. Using the proposed shape section for this channel, compute :
(i) Critical depth of flow
(ii) Critical bottom slope of channel
(iii) State of flow based on Froude number when depth of flow is 2.5 m
(iv)Alternate depth of flow for the same specific energy in Ql(b)(iii) and the corresponding Froude number
(v) If a trapezoid section is used, analyse proportions for the most efficient trapezoid section given that the side slope is not fixed.
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