Physical modelling of screw piles for offshore wind energy foundations

Research output: Contribution to conferencePaper

122 Downloads (Pure)

Abstract

Using existing design methodologies, a series of screw piles were designed to meet the loads required for an upper-bound design scenario of a steel jacket supported offshore wind turbine in deep water. The installation torque and force were measured from centrifuge tests of 1/80 th scale models of the screw piles in very dense sand. Results indicate that the installation requirements are significant and may be beyond the capabilities of existing conventional installation equipment. Optimisation of the screw pile design was successful in reducing the installation force and torque by 34 and 17% respectively over the non-optimised design variant. Accurate prediction of the installation torque is critical and can be achieved using correlations with cone penetration test data.
Original languageEnglish
Pages31-38
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
  • Torque
  • Centrifuge model

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  • Research Output

    Developing screw piles for offshore renewable energy application

    Brown, M. J., Davidson, C., Cerfontaine, B., Ciantia, M., Knappett, J. & Brennan, A., 2020, Advances in Offshore Geotechnics: Proceedings of ISOG2019. Haldar, S., Patra, S. & Ghanekar, R. K. (eds.). Singapore: Springer , p. 101-119 19 p. (Lecture Notes in Civil Engineering; vol. 92).

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

  • 99 Downloads (Pure)

    Physical modelling to demonstrate the feasibility of screw piles for offshore jacket supported wind energy structures

    Davidson, C., Brown, M., Cerfontaine, B., Knappett, J., Brennan, A., Al-Baghdadi, T., Augarde, C., Coombs, W. M., Wang, L., Blake, A., Richards, D. & Ball, J. D., 15 Sep 2020, (Accepted/In press) In : Geotechnique.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 7 Downloads (Pure)
    Open Access
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  • 38 Downloads (Pure)

    Student Theses

    Investigating the performance of continuous helical displacement piles

    Author: Jeffrey, J., 2012

    Supervisor: Brown, M. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy

    File

    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

    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

    Cite this

    Brown, M., Davidson, C., Brennan, A., Knappett, J., Cerfontaine, B., & Sharif, Y. (2019). Physical modelling of screw piles for offshore wind energy foundations. 31-38. Paper presented at 1st International Symposium on Screw Piles for Energy Applications, Dundee, United Kingdom. https://doi.org/10.20933/100001123