Numerical modelling of wave-induced pore pressure around a buried pipeline: WSPI-3D model

Behnam Shabani, Dong-Sheng Jeng, Jianhong Ye, Yakun Guo

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In this paper a three-dimensional numerical model is developed to analyze the ocean wave-induced seabed response. The pipeline is assumed to be rigid and anchored within a trench. Quasi-static soil consolidation equations are solved with the aid of the proposed Finite Element (FE) model within COMSOL Multiphysics. The influence of wave obliquity on seabed responses, the pore pressure and soil stresses, are studied. A comprehensive tests of FE meshes is performed to determine appropriate meshes for numerical calculations. The present model is verified with the previous analytical solutions without a pipeline and two-dimensional experimental data with a pipeline. Numerical results suggest that the effect of wave obliquity on soil responses can be explained through the following two mechanisms: (i) geometry-based three-dimensional influences, and (ii) the formation of inversion nodes. However the influences of wave obliquity on the wave-induced pore pressure are insignificant.

    Original languageEnglish
    Title of host publicationProceedings of the Asme 29th International Conference On Ocean, Offshore And Arctic Engineering, 2010
    Subtitle of host publicationOMAE2010 Volume 1
    Place of PublicationNEW YORK
    PublisherAmerican Society of Mechanical Engineers
    Pages747-755
    Number of pages9
    ISBN (Print)978-0-7918-4909-5
    Publication statusPublished - 2010
    Event29th ASME International Conference on Ocean, Offshore and Arctic Engineering - Shanghai, China
    Duration: 6 Jun 201011 Jun 2010
    http://www.asmeconferences.org/omae2010/

    Conference

    Conference29th ASME International Conference on Ocean, Offshore and Arctic Engineering
    CountryChina
    CityShanghai
    Period6/06/1011/06/10
    Internet address

    Keywords

    • SOIL
    • FORCE

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