A review of modelling effects in centrifuge monopile testing in sand

R.T. Klinkvort, J. Black, S. Bayton, S. Haigh, G. Madabhushi, M. Blanc, L. Thorel, Varvara Zania, B. Bienen, C. Gaudin

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Monopile supports are to this day the preferred foundation solution for offshore wind turbines. There is still an empirical gap, however, between the in-situ conditions for these monopiles and the test conditions the current design methods are based on. This relates to both pile geometry and load conditions. The gap introduces uncertainties and in order to optimise design, this gap needs to be minimised. Scaled modelling in an increased acceleration field, i.e. testing in a geotechnical centrifuge, can be an effective way of understanding behaviour and obtaining empirical evidence. Reliable testing is underpinned by thorough consideration of scaling laws. To address fundamental understanding of modelling effects in centrifuge testing of laterally loaded monopiles in sand, a review of the latest relevant research for performing state of the art centrifuge testing of monopiles in sand has been carried out. Based on this review, modelling effects that introduce some uncertainties in the scaling of the results are identified, and based on that, a coordinated centrifuge-testing program is presented. The test program will be performed across five centrifuge facilities and aims at minimising the identified modelling uncertainties.
    Original languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics : Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom
    Number of pages6
    Volume1
    PublisherCRC Press
    Publication date2018
    Chapter108
    ISBN (Print)9781138559752
    Publication statusPublished - 2018
    Event9th International Conference on Physical Modelling in Geotechnics - London, United Kingdom
    Duration: 17 Jun 201820 Jun 2018
    Conference number: 9

    Conference

    Conference9th International Conference on Physical Modelling in Geotechnics
    Number9
    Country/TerritoryUnited Kingdom
    CityLondon
    Period17/06/201820/06/2018

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