The hydraulic and sediment conditions of an alluvial channel are as follows: water discharge Q1000 ft/s,...

 

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The hydraulic and sediment conditions of an alluvial channel are as follows: water discharge Q1000 ft/s, width W = 50 ft, depth D = 4 ft, velocity V = 5 ft/s, slope S=0.006, doo = 50 mm, dso = 25 mm, and Manning's roughness coefficient n = 0.045. Determine the depth of degradation based on the methods suggested by Meyer-Peter and Müller, Mavis and Laushey, the U.S. Bureau of Reclamation, Shields, and Yang. The hydraulic and sediment conditions of an alluvial channel are as follows: water discharge Q1000 ft/s, width W = 50 ft, depth D = 4 ft, velocity V = 5 ft/s, slope S=0.006, doo = 50 mm, dso = 25 mm, and Manning's roughness coefficient n = 0.045. Determine the depth of degradation based on the methods suggested by Meyer-Peter and Müller, Mavis and Laushey, the U.S. Bureau of Reclamation, Shields, and Yang.

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To determine the depth of degradation using various methods we need to calculate the critical shear stress c and compare it to the shear stress exerte... View the full answer