Numerically modelling the installation and loading of screw piles using dem

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Abstract

In this paper a new numerical modelling technique for simulating the installation and loading of screw piles is described. The method uses the discrete element method (DEM) and in a single model is able to assess the installation requirements as well as the ultimate tensile and compressive capacity. Numerical modelling of screw piles has traditionally been conducted using finite element analysis (FEA), in which piles are wished in place into a soil body consisting of a meshed continuum. Although this has provided many insights into the capacity of screw piles and the mechanisms that form when they are loaded, they do not usually consider the effects of installation on the behaviour of the soil. Using 3D DEM calibrated against element tests and geotechnical centrifuge tests, it is now possible to assess the local changes in density and stress caused during the installation process and what effects this has on the capacity of screw piles.
Original languageEnglish
Pages101-108
DOIs
Publication statusPublished - 27 May 2019
Event1st International Symposium on Screw Piles for Energy Applications - University of Dundee, Dundee, United Kingdom
Duration: 27 May 201928 May 2019

Conference

Conference1st International Symposium on Screw Piles for Energy Applications
Abbreviated titleISSPEA
CountryUnited Kingdom
CityDundee
Period27/05/1928/05/19

Keywords

  • Screw piles
  • DEM analysis
  • installation effects

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  • Research Output

    Design of plate and screw anchors in dense sand: failure mechanism, capacity and deformation

    Cerfontaine, B., Knappett, J., Brown, M. & Bradsaw, A. S., 25 Jun 2019, 7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019). Tarantino, A. & Ibraim, E. (eds.). 2019 ed. EDP Sciences, Vol. 92. p. 1-6 6 p. 16010. (E3S Web of Conferences; vol. 92).

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

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  • 108 Downloads (Pure)

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

    Cerfontaine, B., Knappett, J., Brown, M. & Bradsaw, A. S., May 2019, In : Computers and Geotechnics. 109, p. 34-45 12 p.

    Research output: Contribution to journalArticle

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  • 1 Citation (Scopus)
    47 Downloads (Pure)

    Finite element modelling of the uplift behaviour of screw piles in sand

    Cerfontaine, B., Brown, M., Knappett, J. & Davidson, C., 27 May 2019, Proceedings of the 1st International Symposium on Screw Piles for Energy Applications. p. 69-75

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

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  • 154 Downloads (Pure)

    Student Theses

    Screw piles as offshore foundations : Numerical and physical modelling

    Author: Al-Baghdadi, T., 2018

    Supervisor: Brown, M. (Supervisor) & Knappett, J. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy

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    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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