Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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The Impact of Armor Block Failure on Wave Pressure Acting on a Vertical Wall at the Front of a Caisson

피복 케이슨의 소파블록 이탈이 직립벽에 작용하는 파압에 미치는 영향

  • Taegun Park (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Yeon-Myeong Jung (Institute of Marine Industry, Gyeongsang National University) ;
  • Jeongheum Lee (Institute of Marine Industry, Gyeongsang National University) ;
  • Jaeheon Jeong (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Dong-Soo Hur (Department of Ocean Civil Engineering, Gyeongsang National University)
  • 박태건 (경상국립대학교 해양토목공학과 수공학) ;
  • 정연명 (경상국립대학교 해양산업연구소) ;
  • 이정흠 (경상국립대학교 해양산업연구소) ;
  • 정재헌 (경상국립대학교 해양토목공학과 수공학) ;
  • 허동수 (경상국립대학교 해양토목공학과)
  • Received : 2024.06.28
  • Accepted : 2024.07.30
  • Published : 2024.08.31
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Abstract

This study examines the effects of wave pressure on a vertical wall due to armor block failure at the front of a caisson, using a 2-D hydraulic model to simulate three types of armor block cross-sections. Additionally, the hydraulic characteristics of two cross-sections that replicated the armor blocks' failure, based on complete cross-sections, were compared. Moreover, quantitative analysis indicated that in the cross-section where the displacement of the armor block was recreated, wave run-up( ) increased by an average of 73%, the sum of dimensionless wave pressures increased by 28%, and converted wave force rose by 33%. These findings underscore the need for countermeasures in the event of armor block failure.

본 연구에서는 3가지 형태의 소파블록 단면에 대한 수리모형 실험을 통해 피복 케이슨 전면에 소파블록의 이탈로 인한 수직벽에 작용하는 파압에 미치는 영향에 초점을 둔다. 또한 소파블록의 완전 소파단면을 기준으로 소파블록 이탈을 재현한 2조건 단면에 대해 수리학적 특성을 비교하였다. 그리고 정량적인 분석을 통해 소파블록의 이탈 재현 단면에서 처오름은 평균 73% 상승하며 무차원된 파압의 합은 평균 28% 상승하며, 변환 파력은 33% 상승하였다. 이상의 분석을 토대로 소파블록의 이탈이 발생할 경우 이에 대한 대책이 필요하다고 본다.

Keywords

Acknowledgement

이 논문은 2023년 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구임(RS-2023-00256687, 순환적응형 연안침식 관리기술 개발).

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