EXPERIMENTS ON BEACH PROFILE CHANGE WITH A LARGE WAVE FLUME

Proceedings of the International Conference on Coastal Engineering

Kohki Maruyama¹  Shozo Saito¹  Ryoichi Kajima¹  Takao Shimizu¹ 

[1] Coastal Hydraulics Section, Civil Engineering Laboratory, Central Research Institute of Electric Power Industry (CRIEPI

关键词: beach profile;    profile change;    wave flume;    flume experiments;   

DOI  :  10.9753/icce.v18.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Two-dimensional beach profile changes were investigated with a newly constructed prototype-scale wave flume. The flume is 205 m long, 3.4 m wide and 6 m deep. Sand of two grain sizes was used in the experiments. Analysis of the results was made through use of the parameter C, introduced by Sunamura and Horikawa (1974) to classify beaches as either erosional and accretionary. Beach profile changes obtained in the flume were similar to those in the prototype (field). Net sand transport rate distributions were classified into five types, two of which do not seem to have been observed in laboratory (smallscale) experiments. A simple model describing the five types was developed for evaluating two-dimensional beach profile changes.

【 授权许可】

Unknown