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Numerical integration method for seabed response to water waves
Abstract The problem of continuously layered seabed response to water waves is solved by numerically integrating the displacement stress vectors. It is found that the commonly used approximation by discrete homogeneous multi-layers causes stress discontinuities at the interfaces between the sublayers and may invite serious errors in stability analyses of foundations. The numerical integration theory is verified with good accuracy by wave tank experiments on the motions and wave damping by clay beds. The numerical calculations of motions of the Mississippi Delta clay bed by the present theory give much smaller displacements of bed compared to the results from the quasi-static analyses by discrete homogeneous multi-layer approximations. A criterion for choosing between total stress analysis and effective stress analysis is also proposed.
Numerical integration method for seabed response to water waves
Abstract The problem of continuously layered seabed response to water waves is solved by numerically integrating the displacement stress vectors. It is found that the commonly used approximation by discrete homogeneous multi-layers causes stress discontinuities at the interfaces between the sublayers and may invite serious errors in stability analyses of foundations. The numerical integration theory is verified with good accuracy by wave tank experiments on the motions and wave damping by clay beds. The numerical calculations of motions of the Mississippi Delta clay bed by the present theory give much smaller displacements of bed compared to the results from the quasi-static analyses by discrete homogeneous multi-layer approximations. A criterion for choosing between total stress analysis and effective stress analysis is also proposed.
Numerical integration method for seabed response to water waves
Yamamoto, Tokuo (author)
1983-01-01
9 pages
Article (Journal)
Electronic Resource
English
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