EFFECTS OF SHORT-CRESTED WAVES ON THE SCOURING AROUND THE BREAKWATER

Proceedings of the International Conference on Coastal Engineering

Yen-Chi Lu¹  Ming-Chung Lin⁴  Nai-Kaung Liang³  Chi-Tung Wu² 

[1] Dept. of Civil Eng., National Taiwan University;Taichung Harbor Bureau;Inst. of Harbor and Marine Technology, Wuchi;Dept. of Naval Architecture, National Taiwan University

关键词: breakwater;    short crested waves;    scour;   

DOI  :  10.9753/icce.v20.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The aim of this research is to investigate quaiitatively the influence of short-crested waves on the scouring around the breakwater through mainly some laboratory studies. At first, we succeed to observe clearly in laboratory some sedimentary bed forms such as troughs, holes, triangle bars and longitudinal bars under short-crested wave actions. Then we elucidate the associstion of their formation mechanism with theory of short-crested waves, also indicate its effect on scouring at the toe of breakwaters. In addition, it is shown that the breaking wave height of short-crested waves is certainly higher than that of twodimensional standing waves. Finally we demonstrate some facts of failure of breakwater caused by short-crested wave breaking basing on some field results.

【 授权许可】

Unknown