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Numerical Simulation Of Dynamic Responses In Transversely Isotropic Fluid-Saturated Elastic Seabed Under Wave Actions

Heng, Zhou-Yuan / He, Wang-Yong / Zhi, Sun / Wei, Chen-Ming

Abstract The seabed is assumed to be transversely isotropic fluid-saturated elastic porous medium. Based on the anisotropy theory and Biot dynamic consolidation equations, this paper has established a 3D-dynamic seabed model in u-w-p form and defined anisotropic indicators ξα, ξβ, m for the first time. The governing equations are solved by the Wilson-θ finite element program of DSFEM, and the numerical model is verified by test results. The computation results indicate that the amplitude of the pore water pressure decays more quickly with higher wave heights, shorter wave periods, or in shallower water depths.

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Numerical Simulation Of Dynamic Responses In Transversely Isotropic Fluid-Saturated Elastic Seabed Under Wave Actions

Heng, Zhou-Yuan / He, Wang-Yong / Zhi, Sun / Wei, Chen-Ming

Abstract The seabed is assumed to be transversely isotropic fluid-saturated elastic porous medium. Based on the anisotropy theory and Biot dynamic consolidation equations, this paper has established a 3D-dynamic seabed model in u-w-p form and defined anisotropic indicators ξα, ξβ, m for the first time. The governing equations are solved by the Wilson-θ finite element program of DSFEM, and the numerical model is verified by test results. The computation results indicate that the amplitude of the pore water pressure decays more quickly with higher wave heights, shorter wave periods, or in shallower water depths.

Numerical Simulation Of Dynamic Responses In Transversely Isotropic Fluid-Saturated Elastic Seabed Under Wave Actions

Heng, Zhou-Yuan / He, Wang-Yong / Zhi, Sun / Wei, Chen-Ming

Abstract The seabed is assumed to be transversely isotropic fluid-saturated elastic porous medium. Based on the anisotropy theory and Biot dynamic consolidation equations, this paper has established a 3D-dynamic seabed model in u-w-p form and defined anisotropic indicators ξα, ξβ, m for the first time. The governing equations are solved by the Wilson-θ finite element program of DSFEM, and the numerical model is verified by test results. The computation results indicate that the amplitude of the pore water pressure decays more quickly with higher wave heights, shorter wave periods, or in shallower water depths.

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Title:

Numerical Simulation Of Dynamic Responses In Transversely Isotropic Fluid-Saturated Elastic Seabed Under Wave Actions

Contributors:

Heng, Zhou-Yuan (author) / He, Wang-Yong (author) / Zhi, Sun (author) / Wei, Chen-Ming (author)

Published in:

Advances in Environmental Geotechnics ; 462-466

Publication date:

2010-01-01

Size:

5 pages

ISBN:

978-3-642-04460-1 , 978-3-642-04459-5

DOI:

https://doi.org/10.1007/978-3-642-04460-1_38

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

transversely isotropic , seabed , wave action , dynamic equation , finite element , pore water pressure Engineering , Geoengineering, Foundations, Hydraulics , Sedimentology , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation

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