Physical impact on the reclamation area resulting from offshore dredging at the Changhwa coast, Taiwan

Tai Wen Hsu*, Hsien-Kuo Chang

*Corresponding author for this work

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The physical impact of offshore dredging on the reclamation area at the Changhwa coast, Taiwan, is investigated using a three-dimensional movable-bed model test. A distorted modeling law consisting of maintaining similarity of the equilibrium beach profile between the model and prototype is proposed. The geometric distortion was verified through a series of preliminary experiments conducted in a wave flume. Experimental results show that the distorted modeling is able to reproduce the beach-face slope in nature. An appropriate long-term morphological time-scale was determined based on a comparison of model longshore littoral transport rates and equivalent prototype values. Seabed topographical changes before and after offshore dredging are evaluated in model tests. A suitable countermeasure to prevent beach erosion from wave attack along the reclamation area is suggested from the experimental results. (C) 2000 Elsevier Science Ltd. All rights reserved.

原文English
頁(從 - 到)235-252
頁數18
期刊Ocean Engineering
28
發行號2
DOIs
出版狀態Published - 1 一月 2001

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