COMPOSITE COASTAL PROTECTION METHODS USED AT CIJIN COAST, TAIWAN

Authors

Hong-Mo Wu, Department of Marine Environment and Engineering, National Sun Yat-Sen University, Taiwan
Shao-Gu Kuo, Senior Engineer, Department of Harbor and Coastal Engineering, CECI Engineering Consultants, Taiwan
Yen-Ting Lai, Engineer, Department of Harbor and Coastal Engineering, CECI Engineering Consultants, Taiwan
Li-An Kuo, Assistant Researcher, Tainan Hydraulics Laboratory, National Cheng Kung University, Taiwan
Chia-Yan Cheng, Assistant Researcher, Tainan Hydraulics Laboratory, National Cheng Kung University, Taiwan
Jyh-Cheng Chu, Deputy Manager, Department of Harbor and Coastal Engineering, CECI Engineering Consultants, Taiwan
Yang-Yih Chen, Professor, Department of Marine Environment and Engineering, National Sun Yat-sen University, TaiwanFollow
John R. C. Hsu, Honorary Chair Professor, Department of Marine Environment and Engineering, National Sun Yat-Sen University, Taiwan

Abstract

Cijin Coast has suffered from severe beach erosion and a consequent coastline retreat. To analyze the trend of topographic evolution of Cijin Coast, bathymetric data from field investigation were used and both numerical simulation and physical modeling were implemented in the wave basin to obtain the corresponding parameters that replicate similar phenomena. To protect Cijin Coast, composite coastal protection methods, such as submerged detached breakwaters accompanied with artificial nourishments, were proposed. Parameters used in previous studies were employed to test the proposed protection methods, and the results showed that the methods were effective in preventing the consequent retreat of the coastline. Thus, field construction of the proposed methods was initiated and completed in August 2013. Recent aerial photographs showed that the beach erosion was eliminated, proving the validity of the composite methods.

Recommended Citation

Wu, Hong-Mo; Kuo, Shao-Gu; Lai, Yen-Ting; Kuo, Li-An; Cheng, Chia-Yan; Chu, Jyh-Cheng; Chen, Yang-Yih; and Hsu, John R. C. (2015) "COMPOSITE COASTAL PROTECTION METHODS USED AT CIJIN COAST, TAIWAN," Journal of Marine Science and Technology: Vol. 23: Iss. 4, Article 8.
DOI: 10.6119/JMST-014-1008-1
Available at: https://jmstt.ntou.edu.tw/journal/vol23/iss4/8