Centrifuge testing to verify scaling of offshore pipeline ploughs

Scott Robinson (Lead / Corresponding author), Michael Brown, Hidetake Matsui, Andrew Brennan, Charles E. Augarde, William M. Coombs, Michael Cortis

Research output: Contribution to journalArticle

2 Citations (Scopus)
187 Downloads (Pure)

Abstract

Offshore pipeline ploughs have previously been modelled at 1g with small 1:50 scale models designed to derive the parameters required for prediction of ploughing in terms of tow force requirements and potential advance rates. This was scaled up to prototype with the validity of the scaling verified through 'modelling of models' and with comparison to typical prototype tow forces but without direct validation. To allow further validation, a long centrifuge box and actuation system was developed for use on a medium-sized beam centrifuge. Previous approaches to 1g ploughing were also improved through the use of micro-electro-mechanical systems accelerometers and new low-cost surface scanning techniques. A wide range of ploughing velocities were explored through increasing actuation speeds and the use of pore fluids of different viscosities. The study has shown that although there may be initial concerns over low effective stress scaling issues at 1g, in shallow problems with small-scale models, the large deformation nature of the ploughing problem can be replicated with appropriate scaling. This allows the use of 1g modelling for more efficient parametric studies for this application and has given further confidence to performance parameters for prototype modelling derived from 1g and centrifuge studies.

Original languageEnglish
Pages (from-to)305-317
Number of pages13
JournalInternational Journal of Physical Modelling in Geotechnics
Volume19
Issue number6
Early online date9 Oct 2018
DOIs
Publication statusPublished - 14 Nov 2019

Keywords

  • ploughing
  • cable plough
  • offshore engineering

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  • Projects

    Research Output

    • 2 Citations
    • 9 Conference contribution
    • 7 Article
    • 1 Paper

    Comparative Assessment of Pipeline Plough Performance Prediction Models Against Field Experience in Sand

    Brunning, P., Ashton, G., Brown, M., Robinson, S. & Lauder, K. D., 2020, Proceedings of the 30th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, 7 p.

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

  • Investigation into the effect of plough share leading edge geometry on cable plough performance

    Matsui, H., Robinson, S., Brown, M., Brennan, A., Augarde, C. & Coombs, W. M., 14 Oct 2019, Proceedings of the 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. Southeast Asian Geotechnical Society, 4 p. JGS-045

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

    Open Access
    File
  • Imposition of essential boundary conditions in the material point method

    Cortis, M., Coombs, W. M., Augarde, C. E., Brown, M., Brennan, A. & Robinson, S., 6 Jan 2018, In : International Journal for Numerical Methods in Engineering. 113, 1, p. 130-152 23 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 12 Citations (Scopus)
    189 Downloads (Pure)

    Activities

    • 4 Invited talk
    • 1 Hosting an academic visitor
    • 1 Keynote

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    Brennan, Andrew

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