Browse > Article

Reliability Analysis of Wave Overtopping over a Seawall  

Oh Jung-Eun (School of Civil, Urban and Geosystem Engineering, Seoul National University)
Suh Kyung-Duck (School of Civil, Urban and Geosystem Engineering, Seoul National University)
Kweon Hyuck-Min (Department of Civil Engineering, Kyongju University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.1, 2006 , pp. 69-83 More about this Journal
Abstract
A Level 3 reliability analysis has been performed for wave run-up and overtopping on a sloping seawall. A Monte-Carlo simulation was performed considering the uncertainties of various variables affecting the wave overtopping event. The wave overtopping probability was evaluated from the individual wave run-up by using the wave-by-wave method, while the mean overtopping rate was calculated directly from the significant wave height. Using the calculated overtopping probability and mean overtopping rate, the maximum overtopping volume was also calculated on the assumption of two-parameter Weibull distribution of individual wave overtopping volume. In addition, by changing wave directions, depths, and structure slopes, their effects on wave overtopping were analyzed. It was found that, when the variability of wave directions is considered or the water depth decreases toward shore, wave height become smaller due to wave refraction, which yields smaller mean overtopping rate, overtopping probability and maximum overtopping volume. For the same mean overtopping rate, the expected overtopping probability increases and the expected maximum overtopping volume decreases as approaching toward shore inside surfzone.
Keywords
reliability design method; wave-by-wave method; wave overtopping; wave run-up; seawall; variability in wave direction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 서경덕, 권혁민, 윤현덕 (2003). 파향의 변동성을 고려한 방파제 피복 블록의 기대피해 계산. 한국해안.해양공학회지, 15(1), 21-32
2 Banyard, L. and Herbert, D.M. (1995). The effect of wave angle on the overtopping of seawalls. Rep. Ser. 396, Hydraulic Research, Wallingford, U.K
3 Franco, L. and Cavani, A. (2000). Overtopping response of Core-Locs, Tetrapods and Antifer cubes. Coastal Structures'99, Losada(ed.), 383-387
4 Reis, M.T. (1998). Probabilistic assessment of the safety of coastal structures. PhD thesis, Department of the Civil Engineering, University of Liverpool, Liverpool
5 Ronold, K.O. (1990). Reliability analysis of a coastal dike. Coastal Engineering, 14(1), 43-56   DOI   ScienceOn
6 Shimosako, K. and Takahashi, S. (2000). Application of deformation-based reliability design for coastal structutres. Proceedings of International Conference on Coastal Structures '99, A.A. Balkema, Spain, 363-371
7 TAW (2002). Technical report wave run-up and wave overtopping at dikes. Technical Advisory Committee on Flood Defence, Delft, 42
8 Goda, Y. (1975). Irregular wave deformation in the surf zone. Coastal Engineering in Japan, 18, 13-26   DOI
9 권혁민, 이영렬, 조홍연 (2005). 실해역에 조위발생빈도분포를 고려한 기대월파확률. 대한토목학회논문집, 25(1B), 1-8
10 Bradbury, A.P., Allsop, N.W.H. and Stephens, R.V. (1988). Hydraulic performance of breakwater crown wall. Rep. Ser. 146, Hydraulic Research, Wallingford, U.K., 385-396
11 Hedges, T.S. and Reis, M.T. (1998). Random wave overtopping of simple seawalls: a new regression model. Proceedings of the Institution of Civil Engineering, Water, Maritime and Energy Journal, 130, 1-10
12 이철웅 (2003a). 경사식 해안 구조물에 대한 처오름의 신뢰성 해석. 대한토목학회논문집, 23(6B), 567-574
13 van der Meer, J.W. and Janssen, W. (1995). Wave run-up and wave overtopping at dikes, in wave forces on inclined and vertical wall structures. Kobayashi and Demirbilek, eds., ASCE, 1-27
14 Kweon, H.M. and Suh, K.D. (2003). Reliability analysis of the expected overtopping probability of rubble mound break-water. Proceedings of 13th International Offshore and Polar Engineering Conference, ISOPE, Honolulu, Hawaii, USA, 493-496
15 Ohle, N., Daemrich, K. and Tautenhain, E. (2005). Influence of spectral shape on wave parameters and design methods in time domain. The 5th International Symposium on Ocean Wave Measurement and Anaylsis, Madrid, CD-ROM, Paper No. 150, 10
16 오정은 (2005). 월파에 대한 호안의 신뢰성 해석. 석사학위 논문, 지구환경시스템학부, 서울대학교, 96
17 조홍연, 정신택, 오영민 (2004). 조위자료의 확률밀도함수 추정. 한국해안.해양공학회지, 16(3), 152-161
18 Jackson, R.A. (1968). Design of cover layers for rubble-mound breakwaters subjected to non-breaking waves. WES Research Report No.2-11, U.S. Army Waterways Experiment Station, Bickburg, MS, 20-30
19 Simm, J.D. (1991). Manual on the use of rock in coastal and shoreline engineering. CIRIA/CUR, Special Publication 83, CIRIA, London
20 홍수영, 서경덕, 권혁민 (2004), 파향의 변동성을 고려한 직립방파제 콘크리트 케이슨의 기대활동량 산정. 한국해안.해양공학회지, 16(1), 27-38
21 Takayama, T. and Ikeda, N. (1994). Estimation of encounter probability of sliding for probabilistic design of breakwater. Proceedings of Wave Barriers in Deepwaters, Port and Harbour Research Institute, Yokosuka, 438-457
22 Besley, P. (1999). Overtopping of seawalls - design and assessment manual. R&D Technical Report W178, Environment Agency, Bristol, 37
23 Hunt, I.A. (1959). Design of seawalls and breakwaters. Journal of the Waterway and Harbours Division, Proc ASCE, WW3, ASCE, New York, 85(3), 123-152
24 Aminti, P. and Franco, L. (1988). Wave overtopping on rubble mound breakwaters. Proceedings of the 21st International Coastal Engineering Conference, ASCE, 1, 770-781
25 Longuet-Higgins, M.S. (1975). On the joint distribution of the periods and amplitudes of sea waves. Journal of Geophys. Res., 90(18), 2688-2694
26 van der Meer, J.W. and de Waal J.P. (1993). Water movement on slopes. Influence of berm, roughness, shallow foreshore and oblique long- and short-crested wave attack. Report on model investigation, H 1256, WL | Delft Hydraulics (in Dutch)
27 권혁민 (1998). 방향 스펙트럼 파랑에 대한 3차원 쇄파변형 모델. 대한토목학회논문집, 18(II-6), 591-599
28 Tautenhain, E., Kohlhase, S. and Partenscky, H.W. (1982). Wave run-up at sea dikes under oblique wave approach. Proceedings of the 18th International Conference on Coastal Engineering, Cape Town, 804-810
29 이철웅 (2003b). 월파에 대한 경사식 해안 구조물의 신뢰성 해석. 한국해안.해양공학회지, 15(4), 214-223
30 Goda, Y. (2000). Random Seas and Design of Maritime Structures. 2nd ed. World Scientific, Singapore, 443