Cyclic load response of unburied pipelines on silica sands

Andrew Brennan, Mark Cassidy

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

Abstract

Unburied pipelines are increasing common as a means of transporting offshore petroleum products. Ensuring the pipeline is stable during its lifetime requires careful modelling of likely movements over time, including the small cyclical loads applied by nature. The relevance of the parameters of one such model, originally based on data from carbonate sands, are evaluated by a series of centrifuge tests using silica sands. The model is shown to be applicable in principle provided certain key parameters are suitably amended. This is particularly the case for the parameters affecting low-load cyclic behaviour. However, the vertical penetration behaviour proved to be more non-linear with the silica sands than the carbonate sands, and further refinement of this aspect of the model is necessary.
Original languageEnglish
Title of host publicationFoundations
Subtitle of host publicationProceedings of the Second British Geotechnical Association International Conference on Foundations, ICOF 2008: 24-27 June 2008, University of Dundee, Scotland, UK
EditorsM. J. Brown, M. F. Bransby, A. J. Brennan, J. A. Knappett
Place of PublicationUnited Kingdom
PublisherBRE Press
Pages801-812
Number of pages12
ISBN (Print)9781848060449
Publication statusPublished - 24 Jun 2008
EventSecond British Geotechnical Association International Conference on Foundations - University of Dundee, Dundee, United Kingdom
Duration: 24 Jun 200827 Jun 2008
Conference number: 2

Conference

ConferenceSecond British Geotechnical Association International Conference on Foundations
Abbreviated titleICOF 2008
CountryUnited Kingdom
CityDundee
Period24/06/0827/06/08

Keywords

  • centrifuge modelling
  • on-bottom pipelines
  • silica sand

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  • Cite this

    Brennan, A., & Cassidy, M. (2008). Cyclic load response of unburied pipelines on silica sands. In M. J. Brown, M. F. Bransby, A. J. Brennan, & J. A. Knappett (Eds.), Foundations: Proceedings of the Second British Geotechnical Association International Conference on Foundations, ICOF 2008: 24-27 June 2008, University of Dundee, Scotland, UK (pp. 801-812). BRE Press.