Dynamic response of a porous seabed and an offshore pile to linear water waves

J.-F. Lu, D.-S. Jeng

    Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

    2 Citations (Scopus)

    Abstract

    In this study, a coupled model is proposed to investigate dynamic response of a porous seabed and an offshore pile to ocean wave loadings. Both the offshore pile and the porous seabed are treated as a saturated poro-elastic medium, while the seawater is considered as a conventional acoustic medium. The coupled boundary element model is established by the continuity conditions along the interfaces between the three media. In the system, wave force is considered as an external load and it is evaluated via the wave function expansion method in the context of a linear wave theory. Numerical results show that the increase of the modulus ratio between the pile and the seabed can reduce the horizontal displacement of the pile and the pore pressures of the seabed around the pile. Furthermore, the maximum pore pressure of the seabed usually occurs at the upper part of the seabed around the pile.
    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
    Pages615-622
    Number of pages8
    Volume4
    Publication statusPublished - 1 Jan 2008

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  • Cite this

    Lu, J-F., & Jeng, D-S. (2008). Dynamic response of a porous seabed and an offshore pile to linear water waves. In Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE (Vol. 4, pp. 615-622)