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Experimental Study on Hydraulic Performance of Perforated Caisson Breakwater with Turning Wave Blocks

회파블록케이슨 방파제의 수리학적 성능에 관한 실험적 연구

  • Kim, In-Chul (Division of Architecture & Civil Enginceering, Dongseo University) ;
  • Park, Ki-Chul (Division of Architecture & Civil Enginceering, Dongseo University)
  • 김인철 (동서대학교 건축토목공학부) ;
  • 박기철 (동서대학교 건축토목공학부)
  • Received : 2018.11.01
  • Accepted : 2018.12.13
  • Published : 2019.02.28

Abstract

Recently, a perforated caisson breakwater with turning wave blocks was developed to improve the water affinity and public safety of a rubble mound armored by TTP. In this study, hydraulic model tests were performed to examine the hydraulic performance of a non-porous caisson and new caisson breakwater with perforated blocks for attacking waves in a small fishery harbor near Busan. The model test results showed that the new caisson was more effective in dissipating the wave energy under normal wave conditions and in reducing the wave overtopping rates under design wave conditions than the non-porous caisson. It was found that the horizontal wave forces acting on the perforated caisson were slightly larger than those on the non-porous caisson because of the impulsive forces on the caisson with the turning wave blocks.

Keywords

Non-porous caisson;Turning wave blocks caisson;Reflection coefficients;Wave overtopping rates;Wave forces

Acknowledgement

Supported by : 국토교통부

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