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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50698

Title: Physical impact on the reclamation area resulting from offshore dredging at the Changhwa coast, Taiwan
Authors: Tai-Wen Hsu
Hsien-Kuo Chang
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Offshore dredging
Moveable-bed test
Distorted modeling law
Date: 2000
Issue Date: 2018-10-22T02:17:47Z
Publisher: Ocean Engineering
Abstract: Abstract: 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.
Relation: 28(2) pp.235-252
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50698
Appears in Collections:[河海工程學系] 期刊論文

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