한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제35권1호
  • /
  • Pages.75-81
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  • 2021
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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Application of the Artificial Coral Reef as a Coastal Erosion Prevention Method with Numerical-Physical Combined Analysis (Case Study: Cheonjin-Bongpo Beach, Kangwon Province, South Korea)

  • Hong, Sunghoon (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Jeong, Yeon Myeong (Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Taeyoon (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Huynh, Van Men (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Kim, Inho (Department of Earth and Environmental Engineering, Kangwon National University) ;
  • Nam, Jungmin (Department of Earth and Environmental Engineering, Kangwon National University) ;
  • Hur, Dong Soo (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Lee, Jooyong (Research Institute of Industrial Technology, Pusan National University) ;
  • Kwon, Soonchul (Department of Civil and Environmental Engineering, Pusan National University)
  • 투고 : 2020.11.12
  • 심사 : 2020.12.01
  • 발행 : 2021.02.28
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초록

Artificial Coral Reefs (ACRs) have been introduced to help solve coastal erosion problems, but their feasibility has not been assessed with field data. This study conducted a feasibility analysis of ACRs on their erosion mitigation effects by performing a case study of Cheonjin-Bongpo beach, South Korea. A numerical-physical combined analysis was carried out using a SWAN model simulation and physical model test with a scale of 1/25 based on field observations of Cheonjin-Bongpo beach. Both Dean's parameter and the surf-scaling parameter were applied to comparative analysis between the absence and presence conditions of the ACR. The results for this combined method indicate that ACR attenuates the wave height significantly (59~71%). Furthermore, ACR helps decrease the mass flux (~50%), undertow (~80%), and maximum wave set up (~61%). The decreases in Dean's parameter (~66%) and the surf-scaling parameter suggest that the wave properties changed from the dissipative type to the reflective type even under high wave conditions. Consequently, an ACR can enhance shoreline stability.

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과제정보

The authors thank Professor Jung Lyul Lee of Sungkyunkwan University for sharing his valuable knowledge and insights that encourage us to conduct this research.

참고문헌

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