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

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
권호 표지
DOI QR코드

DOI QR Code

Experimental Investigation of Wave Force on the Pavement behind Crown Wall of Rubble Mound Seawall

경사식 호안 상부구조물 배후 포장체에 작용하는 파력에 대한 실험적 연구

  • Ko, Haeng Sik (Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology) ;
  • Lee, Jooyeon (Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology) ;
  • Jang, Se-Chul (Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology) ;
  • Oh, Sang-Ho (Department of Civil Engineering, School of Smart & Green Engineering, Changwon National University)
  • 고행식 (한국해양과학기술원 연안개발.에너지연구센터) ;
  • 이주연 (한국해양과학기술원 연안개발.에너지연구센터) ;
  • 장세철 (한국해양과학기술원 연안개발.에너지연구센터) ;
  • 오상호 (창원대학교 스마트그린공학부 건설시스템공학전공)
  • Received : 2022.01.06
  • Accepted : 2022.02.21
  • Published : 2022.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Physical experiments were conducted to establish an empirical formula that predicts the wave force on the upside of the pavement behind crown wall of rubble mound seawall due to wave overtopping as well as the uplift force on the downside of the pavement. The experiments were performed by different conditions of the parapet, water depth, relative freeboard, and thickness of the armour layer. Then, the wave force on the upside and downside of the pavement behind the crown wall was analyzed. The parameters that affect the wave overtopping force and the uplift force were identified and empirical formulae were suggested for evaluating the forces on the pavement.

수리모형실험을 통해 경사식 호안 배후면 포장체 상부면에 작용하는 월파력과 하부면에 작용하는 양압력을 계측하고 설계에 활용 가능한 경험식을 제안하였다. 상부구조물의 파라펫, 수심, 상대여유고 및 소파블록 피복두께 조건을 다르게 실험을 수행하여 경사식 호안 상부구조물 및 배후 포장체에 작용하는 파력을 분석하였다. 이를 통해 월파에 의한 파력과 양압력에 영향을 미치는 주요 상관변수를 식별하고, 포장체에 작용하는 파력을 산정할 수 있는 경험식을 제안하였다.

Keywords

Acknowledgement

본 연구는 해양수산과학기술진흥원(KIMST)의 "재해안전 항만 구축 기술개발(PM62370)" 사업의 지원을 받아 수행되었으며, 이에 감사드립니다.

References

  1. Bradbury, A.P., Allsop, N.W.H. and Stephens, R.V. (1988). Hydraulic performance of breakwater crown walls. Rep. SR146, HR Wallingford, UK.
  2. EurOtop (2018). Manual on wave overtopping of sea defences and related Structures. Second Edition.
  3. Goda, Y. (2010). Random Seas and Design of Maritime Structures. World Scientific Publishing Co., Singapore.
  4. Goda, Y., Kishira, Y. and Kamiyama, Y. (1975). Laboratory investigation on the overtoppping rate of seawalls by irregular waves. Technical Report of Port and Airport Research Institute, 14(4), 3-44.
  5. Jensen, O.J. (1984). A monograph on rubble mound breakwaters. Danish Hydraulic Institute, Denmark.
  6. Lykke Andersen, T., Eldrup, M.R. and Frigaard, P. (2017). Estimation of incident and reflected components in highly nonlinear regular waves. Coastal Engineering, 117, 51-64. https://doi.org/10.1016/j.coastaleng.2016.08.013
  7. Ministry of Oceans and Fisheries (2017). Design Standards for Harbours and Fishing ports in Korea (in Korean).
  8. Norgaard, J.Q.H., Andersen, T.L. and Burcharth, H.F. (2013). Wave loads on rubble mound breakwater crown walls in deep and shallow water wave conditions. Coastal Engineering, 80, 137-147. https://doi.org/10.1016/j.coastaleng.2013.06.003
  9. Oh, S.-H., Oh, Y.M., Yeo, B.-G. and Han, T.-Y. (2014). A case study of comparing formulae for estimating horizontal wave force on crown wall of sloping breakwater. Journal of Korean Society of Coastal Disaster Prevention, 1(1), 28-35 (in Korean).
  10. Pedersen, J. (1996). Wave forces and overtopping on crown walls of rubble mound breakwaters: an experimental study. Ph.D Thesis, Aalborg University. Denmark.