Wave-Induced Dynamic Response in a Poroelastic Seabed
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 144, Issue 9
Abstract
This paper presents an analytical solution for the wave-induced dynamic response in a poroelastic seabed. The water waves are described by linear wave theory. The seabed was modeled using Biot theory, where the inertia effects and compressibility of solids and fluids are considered. Based on the appropriate boundary conditions, the closed-form solutions of displacements, effective stresses, and excess pore pressure were obtained for a seabed of finite/infinite thickness. The correctness and accuracy of the proposed method were verified by comparisons with the existing analytical solutions and experimental data. Using the solutions obtained, a parametric study was carried out to examine the effects of the properties of water waves and seabed on the dynamic response of seabed. The numerical results indicate that the seabed response is significantly affected by several pertinent parameters of water waves and seabed, including wave period, water depth, pore fluid compressibility, soil permeability, shear modulus, Poisson’s ratio, seabed thickness, and so on.
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Acknowledgments
This research is partially supported by the National Natural Science Foundation of China (Grant Nos. 51278466 and 41302229). The authors would like to thank editors and reviewers for providing insightful comments and suggestions in shaping this paper.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 144 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Jun 1, 2017
Accepted: Mar 29, 2018
Published online: Jun 25, 2018
Published in print: Sep 1, 2018
Discussion open until: Nov 25, 2018
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