Cyclic load response of unburied pipelines on silica sands

Andrew Brennan; Mark Cassidy

Cyclic load response of unburied pipelines on silica sands

Andrew Brennan
, Mark Cassidy

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Foundations
Subtitle of host publication	Proceedings of the Second British Geotechnical Association International Conference on Foundations, ICOF 2008: 24-27 June 2008, University of Dundee, Scotland, UK
Editors	M. J. Brown, M. F. Bransby, A. J. Brennan, J. A. Knappett
Place of Publication	United Kingdom
Publisher	BRE Press
Pages	801-812
Number of pages	12
ISBN (Print)	9781848060449
Publication status	Published - 24 Jun 2008
Event	Second British Geotechnical Association International Conference on Foundations - University of Dundee, Dundee, United Kingdom Duration: 24 Jun 2008 → 27 Jun 2008 Conference number: 2

Conference

Conference	Second British Geotechnical Association International Conference on Foundations
Abbreviated title	ICOF 2008
Country/Territory	United Kingdom
City	Dundee
Period	24/06/08 → 27/06/08

Keywords

centrifuge modelling
on-bottom pipelines
silica sand

Cite this

Brennan, Andrew ; Cassidy, Mark. / Cyclic load response of unburied pipelines on silica sands. Foundations: Proceedings of the Second British Geotechnical Association International Conference on Foundations, ICOF 2008: 24-27 June 2008, University of Dundee, Scotland, UK. editor / M. J. Brown ; M. F. Bransby ; A. J. Brennan ; J. A. Knappett. United Kingdom : BRE Press, 2008. pp. 801-812

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title = "Cyclic load response of unburied pipelines on silica sands",

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.",

keywords = "centrifuge modelling, on-bottom pipelines, silica sand",

author = "Andrew Brennan and Mark Cassidy",

year = "2008",

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isbn = "9781848060449",

pages = "801--812",

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booktitle = "Foundations",

publisher = "BRE Press",

note = "Second British Geotechnical Association International Conference on Foundations , ICOF 2008 ; Conference date: 24-06-2008 Through 27-06-2008",

}

Brennan, A & Cassidy, M 2008, Cyclic load response of unburied pipelines on silica sands. in MJ Brown, MF Bransby, AJ Brennan & JA 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. BRE Press, United Kingdom, pp. 801-812, Second British Geotechnical Association International Conference on Foundations , Dundee, United Kingdom, 24/06/08.

Cyclic load response of unburied pipelines on silica sands. / Brennan, Andrew; Cassidy, Mark.
Foundations: Proceedings of the Second British Geotechnical Association International Conference on Foundations, ICOF 2008: 24-27 June 2008, University of Dundee, Scotland, UK. ed. / M. J. Brown; M. F. Bransby; A. J. Brennan; J. A. Knappett. United Kingdom: BRE Press, 2008. p. 801-812.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Cyclic load response of unburied pipelines on silica sands

AU - Brennan, Andrew

AU - Cassidy, Mark

N1 - Conference code: 2

PY - 2008/6/24

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N2 - 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.

AB - 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.

KW - centrifuge modelling

KW - on-bottom pipelines

KW - silica sand

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M3 - Conference contribution

SN - 9781848060449

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BT - Foundations

A2 - Brown, M. J.

A2 - Bransby, M. F.

A2 - Brennan, A. J.

A2 - Knappett, J. A.

PB - BRE Press

CY - United Kingdom

T2 - Second British Geotechnical Association International Conference on Foundations

Y2 - 24 June 2008 through 27 June 2008

ER -

Cyclic load response of unburied pipelines on silica sands

Abstract

Conference

Keywords

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