Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Experimental Study on the Effectiveness of Recurved Seawalls in Reducing Wave Overtopping Rate

반파형 안벽구조물의 월파 저감효과에 대한 실험적 연구

  • Kim, Do-Sam (Civil Engineering, Korea Maritime and Ocean University) ;
  • Lee, Suck-Chan (Graduate School of Korea Maritime and Ocean University) ;
  • Lee, Kwang-Ho (Division of Logstics, Environmental and Civil Engineering)
  • 김도삼 (한국해양대학교 물류.환경.도시인프라공학부 건설공학전공) ;
  • 이석찬 (한국해양대학교 토목환경공학과) ;
  • 이광호 (한국해양대학교 물류.환경.도시인프라공학부 건설공학과)
  • Received : 2021.10.25
  • Accepted : 2021.12.02
  • Published : 2021.12.31
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Abstract

As commercial and residential areas are actively developed around the coastal area with excellent scenery, installing coastal structures such as seawalls and breakwaters is continuously increasing to secure safe coastal regions. Additionally, the increase in the intensity of natural disasters due to climate change may cause higher incident waves than in the past, which may further aggravate the damage caused by wave overtopping. In this study, compared to the existing vertical seawall, we investigated the effect of wave overtopping reduction of a recurved seawall, which actively reflects the incoming waves, through the hydraulic model test. As a result of the hydraulic model experiment, it was confirmed that there was an effect of up to 92.4% of wave overtopping reduction in average compared to the vertical seawall and structures covered with armor blocks.

경관이 우수한 연안을 중심으로 상업 및 거주지역이 활발하게 개발됨에 따라 연안역의 안전한 공간을 확보하기 위해 안벽 및 방파제와 같은 연안구조물의 설치가 지속적으로 증가하고 있다. 또한, 기후변화에 따른 자연재해의 강도 증가는 과거에 비해 높은 내습파랑을 발생시켜 월파에 의한 피해를 더욱 가중시킬 수 있다. 본 연구에서는 수리모형실험을 통해 기존의 직립식 안벽구조물에 비해 능동적으로 내습하는 파랑을 반사시키는 반파형 안벽구조물의 월파저감효과를 검토하였다. 수리모형 실험결과, 기존의 직립제 및 구조물전면에 소파블록으로 피복된 구조물에 비해 평균 월파량의 경우 최대 92.4% 정도의 월파량 감소효과가 있는 것으로 확인되었다.

Keywords

References

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