한국해안·해양공학회논문집 (Journal of Korean Society of Coastal and Ocean Engineers)

  • 제27권5호
  • /
  • Pages.345-352
  • /
  • 2015
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  • 1976-8192(pISSN)
  • /
  • 2288-2227(eISSN)
한국해안·해양공학회 (Korean Society of Coastal and Ocean Engineers)
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중간수심역 조건에서 직립식 구조물의 전달파고계수 산정에 관한 수리실험

Hydraulic Experiments on Transmission Coefficients for Vertical Structure under Intermediate Water Depth Condition

  • 김영택 (한국건설기술연구원 하천해안연구실) ;
  • 이종인 (전남대학교 공학대학 해양토목공학과)
  • Kim, Young-Taek (River and Coastal Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Jong-In (Department of Marine and Civil Engineering, Chonnam National University)
  • 투고 : 2015.07.30
  • 심사 : 2015.10.06
  • 발행 : 2015.10.31
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초록

본 연구에서는 직립식 구조물의 전달파고계수 산정을 위한 2차원 수리실험을 실시하였다. 불규칙파를 입사파로 적용하였으며 직립식 구조물에 대한 전달파고계수 산정식을 제안하고, Goda(1969) 등의 결과와 비교하였다. Goda(1969)의 결과는 입사파로 규칙파를 적용한 결과로서 불규칙파를 적용한 본 실험의 결과와 차이를 보였다. Goda의 결과가 본 연구에 비하여 크게 전달파고계수를 제시하는 것을 알 수 있었다. 또한 Goda는 직립벽에 대하여 평균, 상한 및 하한에 대한 계수값을 제시하였으나(d=h조건), 본 연구에서는 각각의 설계요소(구조물 폭, 수심, 파장 등)가 전달파고계수에 주는 영향을 계수를 통하여 정량적으로 제시하였다. 또한 여유고가 0인 조건에 대한 에너지보존 및 전달파고 특성을 제시하였다.

Two-dimensional hydraulic model experiments on vertical structures were conducted to investigate wave transmission characteristics under irregular wave condition. The formula about transmission coefficient for the vertical structure was suggested and the results were compared with Goda(1969). Since Goda(1969)'s tests were conducted based on regular waves, the results showed the discrepancy with this study. The Goda's results were relatively higher than the results from the present study. An influence parameter was quantitatively suggested in this study to consider the effect of structural design factors such as the width of structures, the water depth, and the wave length on the wave transmission, while Goda(1969) suggested the mean, upper and lower limits of parameters for the vertical wall(d=h). The transmission coefficients and energy conservation for zero-freeboard conditions were analyzed.

키워드

참고문헌

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피인용 문헌

  1. Hydraulic Experiments on Wave Transmission Coefficients for Rubble Mound Structure Armored with Tetrapods vol.29, pp.4, 2017, https://doi.org/10.9765/KSCOE.2017.29.4.198