Browse > Article
http://dx.doi.org/10.9765/KSCOE.2013.25.1.20

Numerical Analysis on Settlement Behavior of Seabed Sand-Coastal Structure Subjected to Wave Loads  

Kang, Gi-Chun (Research Institute of Industrial Technology(RIIT), Korea Maritime University)
Yun, Seong-Kyu (Departments of Civil and Environmental Engineering, Korea Maritime University)
Kim, Tae-Hyung (Department of Civil Engineering, Korea Maritime University)
Kim, Dosam (Department of Civil Engineering, Korea Maritime University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.25, no.1, 2013 , pp. 20-27 More about this Journal
Abstract
Seabed settlement underneath a coastal structure may occur due to wave loading generated by storm surge. If the foundation seabed consists of sandy soil, the possibility of the seabed settlement may be more susceptible because of generation of residual excess pore-water pressure and cyclic mobility. However, most coastal structures, such as breakwater, quay wall, etc., are designed by considering wave load assumed to be static condition as an uniform load and the wave load only acts on the structure. In real conditions, however, the wave load is dynamically applied to seabed as well as the coastal structure. In this study, therefore, a real-time wave load is considered and which is assumed acting on both the structure and seabed. Based on a numerical analysis, it was found that there exists a significant effect of wave load on the structure and seabed. The deformation behavior of the seabed according to time was simulated, and other related factors such as the variation of effective stress and the change of effective stress path in the seabed were clearly observed.
Keywords
coastal structure; effective stress path; excess porewater pressure; seabed settlement; wave load;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 박우선, 안희도 (1995). 충격파력을 받는 케이슨 방파제의 동적 해석 모델. 한국해안해양공학회지, 7(1), pp.108-115.   과학기술학회마을
2 이광호, 범성심, 김도삼, 박종배, 안성욱 (2012a). 공진장치에 의한 단주기파랑의 제어에 관한 연구. 한국해안.해양공학회논 문집, 24(1), pp.36-47.   과학기술학회마을   DOI   ScienceOn
3 이광호, 박정현, 김도삼 (2012b). 3차원불규칙파동장하의 진동수 주형 파력발전구조물에서 불규칙공기흐름의 수치시뮬레이션. 한국해안.해양공학회논문집, 24(3), pp.189-202.   과학기술학회마을   DOI   ScienceOn
4 이달수, 김창일, 염기대 (2004). 경사제에 작용하는 총파력: I. 수평파력. 대한토목학회 정기학술대회집, pp.1029-1035.
5 장병욱, 도덕현, 송찹섭 (1993). 파랑하중에 의한 해저지반의 액상화 평가. 한국지반공학회지, 9(4), pp.17-26.   과학기술학회마을
6 Cho, S.-H. (2007). A study on the Characteristics of Cheju Island's Beach Sands, Cheju National University, Master Thesis.
7 de Groot, M. B., Bolton, M. D., Foray, P., Meijers, P., Palmer, A. C., Sandven, R., Sawicki, A. and Teh, T. C. (2006a). Physics of liquefaction phenomena around marine structures. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, 132(4), pp.227-243.   DOI   ScienceOn
8 de Groot, M. B., Kudella, M., Meijers, P. and Oumeraci, H. (2006b). Liquefaction phenomena undernearth marine gravity structures subjected to wave loads. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, 132(4), pp.325-335.   DOI   ScienceOn
9 Goda, Y. (2000). Random seas and design of maritime structures. Advanced Series on Ocean Engineering. 15 (2 ed.). Singapore: World Scientific. ISBN-981-02-3256-6.
10 Iai, S., Matsunaga, Y. and Kameoka, T. (1992a). Strain space plasticity model for cyclic mobility, Soils and Foundations, Japanese Society of Soil Mechanics and Foundation Engineering, 32(2), pp.1-15.
11 Iai, S., Matsunaga, Y. and Kameoka, T. (1992b). Analysis of undrained cyclic behavior of sand under anisotropic consolidation. Soils and Foundations, Japanese Society of Soil Mechanics and Foundation Engineering, 32(2), pp.16-20.
12 Ishihara, K. (1996). Soil behaviour in earthquake geotechnics, Oxford University Press Unc., New York, pp.152-179.
13 Lee, W.-M. (2011). Subsidence Analysis of West Breakwater Construction of Jeju Harbor. Cheju National University, Master Thesis.
14 Oumeraci, H., Partenscky, H.W., Kohlhase, S. and Klammer, P. (1992). Impact loading and dynamic response of caisson breakwaters-Results of large-scale model tests. Coastal Engineering, 1,pp.475-1,488.
15 Ozutsumi, O., Sawada, S., Iai, S., Takeshima, Y., Sugiyama, W. and Shimasu, T. (2002). Effective stress analyses of liquefaction-induced deformation in river dikes. Journal of Soil Dynamics and Earthquake Engineering, 22, pp.1075-1082.   DOI   ScienceOn
16 Zienkiewicz, O.C. and Bettess, P. (1982). Soils and other saturated media under transient, dynamic conditions, Soil mechanics-Transient and Cyclic Loads (Pande and Zienkiewicz eds.), John Wily and Sons, pp.1-16.
17 Richart, F.E., Hall, J.R. and Wood, R.D. (1970). Vibrations of soils and foundations, Prentice Hall, Englewood Cliffs.
18 Sawada, S., Ozutsumi, O. and Iai, S. (2000). Analysis of liquefaction induced residual deformation for two types of quay walls: analysis by "FLIP", Proceedings of the 12th World Conference on Earthquake Engineering (Auckland), No.2486.
19 Towata, I. and Ishihara, K. (1985). Modeling soil behaviour under principal stress axes rotation, Proceeding of the Fifth International Conference on Numerical Method in Geomechanics, 1, pp.523-530.