A 3-D model for ocean waves over a Columb-damping poroelastic seabed |
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| Institution: | 1. Institute of Mechanics, Chinese Academy of Science, Beijing 1008, China;2. School of Engineering, Griffith University Gold Coast Campus, QLD 9726, Australia;1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;2. School of Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK;3. MaREI, Environmental Research Institute & School of Engineering, University College Cork, Western Rd., Cork, Ireland;1. Université de Toulon, CNRS/INSU, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, 83957 La Garde, France;2. Aix Marseille Université, CNRS/INSU, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, 13288 Marseille, France;3. Aix Marseille Université, CNRS, Centrale Marseille, IRPHE, UMR 7342, 13451 Marseille cedex, France;4. ACRI-IN, 260, Route du Pin Montard Sophia-Antipolis, F-06410 Biot, France;1. College of Shipbuilding Engineering, Harbin Engineering University, 150001, Harbin, China;2. College of Mechanical and Electrical Engineering, Harbin Engineering University, 150001, Harbin, China;3. College of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China |
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| Abstract: | The evaluation of the wave-induced seabed instability in the vicinity of a breakwater is particularly important for coastal and geotechnical engineers involved in the design of coastal structures. In this paper, an analytical solution for three-dimensional short-crested wave-induced seabed instability in a Coulomb-damping porous seabed is derived. The partial wave reflection and self-weight of breakwater are also considered in the new solution. Based on the analytical solution, we examine (1) the wave-induced soil response at different location; (2) the maximum liquefaction and shear failure depth in coarse and fine sand; (3) the effects of reflection coefficients; and (4) the added stresses due to the self-weight of the breakwater. |
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