Effect of soil deformability on the failure mechanism of shallow plate or screw anchors in sand

Benjamin Cerfontaine (Lead / Corresponding author), Jonathan Knappett, Michael Brown, Aaron S. Bradsaw

Research output: Contribution to journalArticle

4 Citations (Scopus)
70 Downloads (Pure)

Abstract

Most analytical approaches for the design of shallow plate and screw anchors in tension are based on the limit equilibrium of a rigid soil wedge for which a horizontal stress distribution acting on the failure plane is assumed. Finite element analysis for a wide range of soil properties was carried out to identify the shape of the failure mechanism and to study the stress distribution at failure. Results show that soil deformation modifies the stress field around the anchor and increases the uplift capacity. A semi-analytical approach is proposed to describe this stress distribution, based on peak friction angle.

Original languageEnglish
Pages (from-to)34-45
Number of pages12
JournalComputers and Geotechnics
Volume109
Early online date24 Jan 2019
DOIs
Publication statusPublished - May 2019

Keywords

  • Anchors
  • Design
  • Failure mechanism
  • Finite element analysis
  • Sand

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  • Projects

    Research Output

    • 4 Citations
    • 6 Conference contribution
    • 3 Article
    • 2 Paper

    A Finite Element approach for determining the full load-displacement relationship of axially-loaded shallow screw anchors, incorporating installation effects

    Cerfontaine, B., Knappett, J., Brown, M., Davidson, C., Al-Baghdadi, T., Sharif, Y., Brennan, A., Augarde, C., Coombs, W. M., Wang, L., Blake, A., Richards, D. J. & Ball, J. D., 30 Jun 2020, In : Canadian Geotechnical Journal.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 27 Downloads (Pure)

    Optimisation of screw anchor lateral capacity in sand for offshore renewable energy applications

    Cerfontaine, B., Brown, M., Knappett, J., Davidson, C. & Sharif, Y., Sep 2020, Proceedings of the 4th International Symposium on Frontiers in Offshore Geotechnics. Deep Foundations Institute, 3451

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

    Open Access
    File
  • Activities

    • 1 Membership of committee
    • 1 Keynote

    1st International Symposium on Screw Piles for Energy Applications (Event)

    Michael Brown (Chair)

    Dec 201828 May 2019

    Activity: Membership typesMembership of committee

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