Application of Geotextile Tubes to Coastal Silt Mitigation: A Case Study in Niaoyu Fishing Harbor

I-Fan Tseng, Chih-Hung Hsu (), Heng-Chih Cheng and Yen-Shun Chen
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I-Fan Tseng: Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
Chih-Hung Hsu: Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan
Heng-Chih Cheng: Gold-Joint Industry Co., Ltd., Taichung 43541, Taiwan
Yen-Shun Chen: IGS Chinese Taipei Chapter Chinese Geosynthetics Association, Pingtung 91200, Taiwan

Sustainability, 2023, vol. 15, issue 3, 1-23

Abstract: Pengpeng Beach, near Niaoyu Fishing Harbor, is an offshore sandbar that formed on the west side of Niaoyu Island in Penghu County, Taiwan, in 1995. Due to siltation, Pengpeng Beach also forms a sandbar tail that stretches toward the Niaoyu Fishing Harbor, meaning the Niaoyu Fishing Harbor and its navigation channel are facing serious siltation problems. This study aimed to find a solution for the siltation problem of the area by utilizing geotextile tubes, which are an economical material in terms of their material and construction cost, as well as being ecologically friendly in terms of their carbon emissions during production and transportation. Based on numerical simulations, location candidates for placing silt trap facilities were tested, selected, and modified to develop alternative mitigation plans. Evaluation of the mitigation plans was based on (1) the silt mitigation effect; (2) engineering cost; (3) public acceptance; and (4) impact on the surrounding landscape. The results showed that the proposed silt mitigation plan would be effective, and the plan was accepted by the local residents and government.

Keywords: geotextile; siltation mitigation; offshore sandbar; sustainable development (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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