Response of porous seabed to dynamic loadings

D. -S. Jeng, X. L. Zhou, X. D. Luo, J. H. Wang, J. Zhang, F. P. Gao

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The evaluation of the seabed response, including pore pressure, effective stresses and shear stresses, is particularly important for coastal geotechnical engineers involved in the design of foundation around marine structures. This paper consists of two components. The first component focuses on analytical approximation for the seabed response, in which a new analytical solution for the seabed response due to combined wave and current loading is presented. Both transient and residual mechanisms are considered. Based on the new analytical solution, the effects of currents on the seabed response are examined and a modified J-S curve is presented. The second component will present an integrated model for ocean waves propagating over a submerged coastal structure. In the new model, Navier-Stoke equations, Biot’s poro-elastic theory, and structural mechanics theory are solved for wave propagation, seabed response and structure deformation, respectively. The new feature of this model is to integrate wave, soil and structure modes into one model within COMSOL Multiphysics environments. In this part, we first present the model of ocean wave generation over a porous seabed. Then we further consider two coastal engineering problems: (1) ocean waves propagating over a submerged breakwater on a porous seabed; and (2) waves over a deformable structure on a porous seabed, which can be applied to wave energy converter.
    Original languageEnglish
    JournalGeotechnical Engineering
    Volume41
    Issue number4
    Publication statusPublished - Dec 2010

    Fingerprint

    ocean wave
    Water waves
    Coastal engineering
    coastal structure
    coastal engineering
    Ocean structures
    wave generation
    Breakwaters
    breakwater
    Pore pressure
    Navier-Stokes equations
    effective stress
    wave energy
    pore pressure
    Wave propagation
    wave propagation
    Navier Stokes equations
    mechanics
    shear stress
    Shear stress

    Keywords

    • Porous seabed
    • Dynamic loading
    • Waves
    • Currents

    Cite this

    Jeng, D. -S., Zhou, X. L., Luo, X. D., Wang, J. H., Zhang, J., & Gao, F. P. (2010). Response of porous seabed to dynamic loadings. Geotechnical Engineering, 41(4).
    Jeng, D. -S. ; Zhou, X. L. ; Luo, X. D. ; Wang, J. H. ; Zhang, J. ; Gao, F. P. / Response of porous seabed to dynamic loadings. In: Geotechnical Engineering. 2010 ; Vol. 41, No. 4.
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    abstract = "The evaluation of the seabed response, including pore pressure, effective stresses and shear stresses, is particularly important for coastal geotechnical engineers involved in the design of foundation around marine structures. This paper consists of two components. The first component focuses on analytical approximation for the seabed response, in which a new analytical solution for the seabed response due to combined wave and current loading is presented. Both transient and residual mechanisms are considered. Based on the new analytical solution, the effects of currents on the seabed response are examined and a modified J-S curve is presented. The second component will present an integrated model for ocean waves propagating over a submerged coastal structure. In the new model, Navier-Stoke equations, Biot’s poro-elastic theory, and structural mechanics theory are solved for wave propagation, seabed response and structure deformation, respectively. The new feature of this model is to integrate wave, soil and structure modes into one model within COMSOL Multiphysics environments. In this part, we first present the model of ocean wave generation over a porous seabed. Then we further consider two coastal engineering problems: (1) ocean waves propagating over a submerged breakwater on a porous seabed; and (2) waves over a deformable structure on a porous seabed, which can be applied to wave energy converter.",
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    Jeng, D-S, Zhou, XL, Luo, XD, Wang, JH, Zhang, J & Gao, FP 2010, 'Response of porous seabed to dynamic loadings', Geotechnical Engineering, vol. 41, no. 4.

    Response of porous seabed to dynamic loadings. / Jeng, D. -S.; Zhou, X. L.; Luo, X. D.; Wang, J. H.; Zhang, J.; Gao, F. P.

    In: Geotechnical Engineering, Vol. 41, No. 4, 12.2010.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Response of porous seabed to dynamic loadings

    AU - Jeng, D. -S.

    AU - Zhou, X. L.

    AU - Luo, X. D.

    AU - Wang, J. H.

    AU - Zhang, J.

    AU - Gao, F. P.

    N1 - dc.publisher: Southeast Asian Geotechnical Society & Association of Geotechnical Engineers of Southeast Asia

    PY - 2010/12

    Y1 - 2010/12

    N2 - The evaluation of the seabed response, including pore pressure, effective stresses and shear stresses, is particularly important for coastal geotechnical engineers involved in the design of foundation around marine structures. This paper consists of two components. The first component focuses on analytical approximation for the seabed response, in which a new analytical solution for the seabed response due to combined wave and current loading is presented. Both transient and residual mechanisms are considered. Based on the new analytical solution, the effects of currents on the seabed response are examined and a modified J-S curve is presented. The second component will present an integrated model for ocean waves propagating over a submerged coastal structure. In the new model, Navier-Stoke equations, Biot’s poro-elastic theory, and structural mechanics theory are solved for wave propagation, seabed response and structure deformation, respectively. The new feature of this model is to integrate wave, soil and structure modes into one model within COMSOL Multiphysics environments. In this part, we first present the model of ocean wave generation over a porous seabed. Then we further consider two coastal engineering problems: (1) ocean waves propagating over a submerged breakwater on a porous seabed; and (2) waves over a deformable structure on a porous seabed, which can be applied to wave energy converter.

    AB - The evaluation of the seabed response, including pore pressure, effective stresses and shear stresses, is particularly important for coastal geotechnical engineers involved in the design of foundation around marine structures. This paper consists of two components. The first component focuses on analytical approximation for the seabed response, in which a new analytical solution for the seabed response due to combined wave and current loading is presented. Both transient and residual mechanisms are considered. Based on the new analytical solution, the effects of currents on the seabed response are examined and a modified J-S curve is presented. The second component will present an integrated model for ocean waves propagating over a submerged coastal structure. In the new model, Navier-Stoke equations, Biot’s poro-elastic theory, and structural mechanics theory are solved for wave propagation, seabed response and structure deformation, respectively. The new feature of this model is to integrate wave, soil and structure modes into one model within COMSOL Multiphysics environments. In this part, we first present the model of ocean wave generation over a porous seabed. Then we further consider two coastal engineering problems: (1) ocean waves propagating over a submerged breakwater on a porous seabed; and (2) waves over a deformable structure on a porous seabed, which can be applied to wave energy converter.

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    KW - Currents

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    JO - Geotechnical Engineering

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    Jeng D-S, Zhou XL, Luo XD, Wang JH, Zhang J, Gao FP. Response of porous seabed to dynamic loadings. Geotechnical Engineering. 2010 Dec;41(4).