SCOURING DUE TO WAVE ACTION AT THE TOE OF PERMEABLE COASTAL STRUCTURE

Proceedings of the International Conference on Coastal Engineering

Toru Sawaragi¹ 

[1] Osaka University

关键词: scouring;    permeable structure;    coastal structures;   

DOI  :  10.9753/icce.v10.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

In this paper, the relation between a reflection coefficient of waves and a void ratio of permeable face of a structure is firstly revealed, because of the fact that there is a close relationship between the reflection coefficient and the phenomena of scouring. Before the scouring depth is investigated, the relation of the scouring depth to subsidence is made clear. Then, it is found that the scouring depth which has great influence upon subsidence of blocks, becomes larger with the increment of the coefficient of reflection. Furthermore, a composite cross section which has an imaginary uniform slope of 20 degrees, is proposed as the stable cross section against the subsidence of blocks.

【 授权许可】

Unknown