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Prediction of Scour Depth Under Armoring Conditions

by Deva K. Borah, Rutgers Univ, United States,
Prasanta K. Bordoloi, Rutgers Univ, United States,



Document Type: Proceeding Paper

Part of: Soil Properties Evaluation from Centrifugal Models and Field Performance

Abstract:

A simple procedure is proposed to compute scour depth on an alluvial bed having graded materials under flow conditions which produce armor layer at the bed surface. The procedure is based on the critical shear stress given by the Shields Curve and the bed material size distribution. The procedure is validated at the W.C. Little and P.G. Mayer's experimental flume and at the downstream of Gavins Point Dam in the Missouri River.

Subject Headings: River and stream beds | Shear stress | Bed materials | Alluvial channels | Scour | Armor units | Water flow | Missouri River

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