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Groins and Vanes Developed Basing Upon a New Concept of Bank Protection

by Shoji Fukuoka, Tokyo Inst of Technology, Japan,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

At curved bends, scour at the outer bank always accompanies deposition at the inner bank. A highly efficient river course for flood flow is considered to have a small lateral gradient and less scour and deposition within the bend. The structure and arrangement of groins and vanes used to control bank erosion are investigated based on a new concept. The new concept is to make the velocity distribution of current entering into the bend as uniform as possible by a proper arrangement of groins or vanes by which lateral gradient of bed within the bend is reduced, and a current capable of fully utilizing the cross sectional area of river with less drift is created.

Subject Headings: River bank stabilization | Velocity distribution | Vanes | Groins (structure) | Coastal protection structures | Scour | River flow

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