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d two times as large for the overflow section. Use the slope=0.00030 for both. Determine the equivalent roughne: annel, n = 0.025 Flood plane, n = 0.05

d two times as large for the overflow section. Use the slope=0.00030 for both. Determine the equivalent roughne: annel, n = 0.025 Flood plane, n = 0.05

Structural Analysis
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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A flood occurs in main channel having a trapezoidal section (side slope on both sides: (2H to 1V) and base width of 12m. The depth of the flow in this section is 3.60m and flood spills out over an almost horizontal plane on one side of the main channel. The width of the flood plain is 60m with an overflow depth of 1m. If n=0.025 for the main channel and two times as large for the overflow section. Use the slope=0.00030 for both. Determine the equivalent roughness coefficient. Main channel, n = 0.025 Flood plane, n = 0.05 1m 3.6m 2.6m 7.2m 12m 5.2m 60m A 0.035 0.029 0.026 D 0.032
Transcribed Image Text:A flood occurs in main channel having a trapezoidal section (side slope on both sides: (2H to 1V) and base width of 12m. The depth of the flow in this section is 3.60m and flood spills out over an almost horizontal plane on one side of the main channel. The width of the flood plain is 60m with an overflow depth of 1m. If n=0.025 for the main channel and two times as large for the overflow section. Use the slope=0.00030 for both. Determine the equivalent roughness coefficient. Main channel, n = 0.025 Flood plane, n = 0.05 1m 3.6m 2.6m 7.2m 12m 5.2m 60m A 0.035 0.029 0.026 D 0.032
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