Numerical study of the combined loading envelope of a skirted spudcan foundation

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    Abstract

    Copyright © 2014 by ASME. Foundations for offshore structures, such as mobile jack-up units, are subjected to large horizontal (H) and moment (M) loads in addition to changing vertical (V) loads. The use of a combined vertical, horizontal and moment (V-H-M) loading envelope to define foundation capacities has become increasingly applied in recent years. However, there is no study on the skirted spudcan, a new alternative foundation type to the conventional spudcan footing for jack-ups. In this study, the combined V-H-M yield envelope of a skirted spudcan foundation in clay soil is investigated with small strain finite element analyses using 3D modeling. The footing's uniaxial bearing capacities and failure mechanisms are described. The failure envelope for the combined V-H-M loadings is presented. A comparison of the bearing capacities between the spudcan and skirted spudcan of various dimensions is also presented.
    Original languageEnglish
    Title of host publicationInternational Conference on Ocean, Offshore and Arctic Engineering
    PublisherASME International
    PagesV003T10A018
    Number of pages7
    Volume3
    ISBN (Print)9780791845411
    DOIs
    Publication statusPublished - 2014
    EventASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014 - San Francisco, United States
    Duration: 8 Jun 201413 Jun 2014

    Conference

    ConferenceASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014
    CountryUnited States
    CitySan Francisco
    Period8/06/1413/06/14

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  • Cite this

    Cheng, N., Cassidy, M., & Tian, Y. (2014). Numerical study of the combined loading envelope of a skirted spudcan foundation. In International Conference on Ocean, Offshore and Arctic Engineering (Vol. 3, pp. V003T10A018). ASME International. https://doi.org/10.1115/OMAE2014-23990