Modelling of Pipeline and Cable Flotation conditions

Tommaso Bizzotto, Michael Brown, Andrew Brennan, Toby Powell, Howard W. Chandler

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

Abstract

This paper aims to give a new perspective on physical modelling investigation of pipeline/cable flotation in post-jetted fine grained soils. The effect of bed preparation on soil resistance was assessed by performing pipeline pull-out tests in clays at various moisture contents. Two bed preparation methods were compared. The penetration of the pipe/cable through the fluidised soil, drags water lenses into the clay and leaves the soil in a disturbed state that persists and affect the mobilization distance of the pull-out tests. The mobiliza-tion of resistance is found to be dependent on the simulation of pipeline/cable installation process and em-bedment ratio (H/D).
Original languageEnglish
Title of host publicationOffshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments
Subtitle of host publicationProceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London
PublisherSociety for Underwater Technology
Pages865-871
Volume1-2
ISBN (Print)9780906940570 (hbk) Volume 1, 9780906940587 (hbk) Volume 2
Publication statusPublished - 12 Sep 2017
Event8th Offshore Site Investigation and Geotechnics International Conference: ‘Smarter Solutions for Future Offshore Developments’ - Royal Geographical Society, London, United Kingdom
Duration: 12 Sep 201714 Sep 2017
http://www.sutconnects.com/ (Link to conference website)

Conference

Conference8th Offshore Site Investigation and Geotechnics International Conference
CountryUnited Kingdom
CityLondon
Period12/09/1714/09/17
Internet address

Keywords

  • Pipeline
  • Flotation
  • Specific gravity

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  • Research Output

    • 2 Conference contribution

    Development of a series of 2D backfill ploughing physical models for pipelines and cables

    Bizzotto, T., Brown, M., Brennan, A., Powell, T. & Chandler, H. W., Jul 2018, Physical Modelling in Geotechnics: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. McNamara, A., Divall, S. & Goodey, R. (eds.). 1 ed. Taylor & Francis, p. 553-558 4 p.

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

    Open Access
    File
  • Toward less conservative flotation criteria for lightweight cables and pipelines

    Bizzotto, T., Brown, M. J., Powell, T., Brennan, A. J. & Chandler, H., 2017, Proceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017. Chung, J. S. & Wang, H. H. (eds.). United States: International Society of Offshore and Polar Engineers, Vol. 2. p. 535-540 6 p. (Proceedings of the International Ocean and Polar Engineering Conference; vol. 2).

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

    Open Access
    File
  • Activities

    • 1 Membership of group

    Cite this

    Bizzotto, T., Brown, M., Brennan, A., Powell, T., & Chandler, H. W. (2017). Modelling of Pipeline and Cable Flotation conditions. In Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London (Vol. 1-2, pp. 865-871). Society for Underwater Technology. https://www.sut.org/books-and-conference-proceedings/offshore-site-investigation-and-geotechnics-2017-conference-proceedings/