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Journal of Korean Society of Coastal and Ocean Engineers > Volume 32(6); 2020 > Article
J Korean Soc Coast Ocean Eng 2020;32(6): 396-410. doi: https://doi.org/10.9765/KSCOE.2020.32.6.396
기존 방파제에 투과성 이중 원형케이슨 추가설치에 따른 파랑 특성 분석
박민수
한국건설기술연구원 인프라안전연구본부 수석연구원
Characteristics of Wave by Additional Installation of Porous Dual Circular Caissons on the Existing Breakwater
Min Su Park
Senior Researcher, Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-ro, Ilsanseo-gu, Goyang-si, Gyeongggi-do 10223, Korea
Corresponding author: Min Su Park ,Tel: +82-31-910-0289, Fax: +82-31-910-0121, Email: mspark@kict.re.kr
Received: October 20, 2020;  Revised: November 5, 2020.  Accepted: November 12, 2020.
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ABSTRACT
The design and the construction are carried out by installation of new caissons on the back or the front of existing caissons to increase the stability of existing caisson breakwater. In this study, we use the eigenfunction expansion method to analyze the effects of wave structure interaction when new porous dual circular caissons are installed on the back or the front of existing breakwater. The porous dual circular caisson which consisting of a porous outer cylinder circumscribing an impermeable inner cylinder is one type of seawater exchanging breakwater. The comparison of numerical results between present method and Sankarbabu et al. is made, and the wave force and the wave run-up acting on each porous dual circular caisson are calculated for various parameters by considering the wave structure interaction.
Keywords: eigenfunction expansion method, porous dual circular caisson, wave structure interaction, wave force, wave run-up
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