DOI QR코드

DOI QR Code

Experimental Investigation for Evaluating Wave Forces on Perforated Caisson with Two Wave Chambers

유수실이 2개인 유공케이슨의 파력 산정에 관한 실험적 연구

  • Oh, Sang-Ho (Coastal Engineering Division, Korea Institute of Ocean Science and Technology) ;
  • Ji, Chang-Hwan (Coastal Engineering Division, Korea Institute of Ocean Science and Technology) ;
  • Lee, Dal Soo (Hyein E&C, Research and Development Division)
  • 오상호 (한국해양과학기술원 연안공학연구본부) ;
  • 지창환 (한국해양과학기술원 연안공학연구본부) ;
  • 이달수 ((주)혜인이엔씨 기술연구소)
  • Received : 2015.10.28
  • Accepted : 2015.12.16
  • Published : 2015.12.31

Abstract

Design formula for estimating the wave loading on the perforated caisson having two wave chambers is yet available. In this study, the analysis results are presented with the experimental data for the wave force acting on such a breakwater model. Based on the experimental results, it was able to clarify the variation of wave action according to five different wave phases that are associated with peak wave loading at the three vertical walls. Then the force adjustment factor for double-chamber caisson was estimated, similarly as Takahashi and Shimosako (1994), which needs to be further validated with subsequent experiments and practical application in the field.

유수실을 두 개 가지는 유공케이슨에 작용하는 파력 산정식은 아직까지 없다. 이 연구에서는 이러한 이중유수실 케이슨 모형에 작용하는 파력을 측정한 수리실험 자료 분석 결과를 제시하였다. 실험결과로부터 세 가지 연직벽체에 작용하는 파력의 첨두값에 연관된 다섯 가지 파의 위상에 따른 파력의 변화 양상을 명확하게 규명할 수 있었으며, 이로부터 Takahashi and Shimosako (1994)와 유사한 형태의 이중유수실 파력보정계수를 산정하였다. 이 결과는 향후 추가 실험 및 현장 실무에의 적용을 통해 검증될 필요가 있다.

Keywords

References

  1. Bergmann, H. and Oumeraci, H. (2000). "Wave loads on perforated caisson breakwaters." Proc. 27th Int. Conf. Coast. Engrg., ASCE, 1622-1635.
  2. Chen, X., Li, Y. and Sun, D. (2002). "Regular waves acting on double-layered perforated caissons." Proceedings of the 12th International Offshore and Polar Engineering Conference, 736-743.
  3. Franco, L., de Gerloni, M., Passoni, G., and Zacconi, D. (1998). "Wave forces on solid and perforated caisson breakwaters: comparison of field and laboratory measurements." Proc. 26th Int. Conf. Coast. Engrg., ASCE, 1945-1958.
  4. Goda, Y. (1974). "New wave pressure formulae for composite breakwaters." Proc. 14th Int. Conf. Coastal Eng. (ICCE1974), 1702-1720.
  5. Li, Y.C. (2007). "Interaction between waves and perforated-caisson breakwaters." Proc. 4th Int. Conf. Asian Pac. Coasts., 1-16.
  6. Oh, S.-H., Ji, C.-H., Oh, Y. M., Jang, S.-C., and Lee, D. S. (2014). "Comparison of maximum horizontal wave force acting on perforated caisson breakwater with single and double chamber." Journal of Korean Society of Coastal and Ocean Engineers, 26(5), 335-341 (in Korean). https://doi.org/10.9765/KSCOE.2014.26.5.335
  7. Tabet-Aoul, E-H. and Lambert, E. (2003). "Tentative new formula for maximum horizontal wave forces acting on perforated caisson." J. Wtrwy., Port, Coast. Oc. Engrg., 129(1), 34-40. https://doi.org/10.1061/(ASCE)0733-950X(2003)129:1(34)
  8. Takahashi, S. and Shimosako, K. (1994). "Wave pressure on a perforated wall caisson." Proceedings of the International Conference on Hydro-Technical Engineering for Port and Harbor Construction (HYDRO-PORT '94), 747-764.
  9. Takahashi, S., Tanimoto, K. and Shimosako, K (1994a). "Dynamic response and sliding of breakwater caisson against impulsive breaking wave forces." Proceedings of the International Workshop on Wave Barriers in Deepwaters, 362-401.
  10. Takahashi, S., Tanimoto, K. and Shimosako, K. (1994b). "A proposal of impulsive pressure coefficient for design of composite breakwaters." Proceedings of the International Conference on Hydro-Technical Engineering for Port and Harbor Construction.