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Article: Large-scale modelling of soil-pipe interaction during large amplitude cyclic movements of partially embedded pipelines

TitleLarge-scale modelling of soil-pipe interaction during large amplitude cyclic movements of partially embedded pipelines
Authors
KeywordsPipeline
Thermal buckling
Clay
Physical modelling
Upper bound solution
Issue Date2007
PublisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cgj
Citation
Canadian Geotechnical Journal, 2007, v. 44 n. 8, p. 977-996 How to Cite?
AbstractAs the development of offshore hydrocarbons moves into deeper water, pipelines form an increasingly significant part of the required infrastructure. High-temperature high-pressure pipelines must be designed to accommodate thermal expansion and potential lateral buckling. A novel design approach is to control the formation of pre-engineered lateral buckles to relieve the expansion. The amplitude of these buckles is typically several pipe diameters. Assessment of the force–displacement interaction between the on-bottom pipeline and the seabed is crucial for design. A series of large-scale plane strain model tests has been conducted to measure the response of a pipe segment partially embedded in soft clay, during large amplitude cyclic movements, mimicking consecutive thermal expansion and contraction at a bend in a pipeline. Four key stages in the force–displacement response have been identified: (i) breakout, (ii) suction release, (iii) resistance against a steadily growing active berm, and (iv) additional resistance during collection of a pre-existing dormant berm. A simple upper bound solution is proposed to model the observed response. This solution captures the experimental trends including growth of the active berm and collection of dormant berms. This approach is the first attempt to quantitatively model the mechanisms underlying the response during large-displacement lateral sweeps of an on-bottom pipeline, accounting for the growth of soil berms.
Persistent Identifierhttp://hdl.handle.net/10722/57242
ISSN
2015 Impact Factor: 1.877
2015 SCImago Journal Rankings: 2.093
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheuk, CYen_HK
dc.contributor.authorWhite, DJen_HK
dc.contributor.authorBolton, MDen_HK
dc.date.accessioned2010-04-12T01:30:33Z-
dc.date.available2010-04-12T01:30:33Z-
dc.date.issued2007en_HK
dc.identifier.citationCanadian Geotechnical Journal, 2007, v. 44 n. 8, p. 977-996en_HK
dc.identifier.issn0008-3674en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57242-
dc.description.abstractAs the development of offshore hydrocarbons moves into deeper water, pipelines form an increasingly significant part of the required infrastructure. High-temperature high-pressure pipelines must be designed to accommodate thermal expansion and potential lateral buckling. A novel design approach is to control the formation of pre-engineered lateral buckles to relieve the expansion. The amplitude of these buckles is typically several pipe diameters. Assessment of the force–displacement interaction between the on-bottom pipeline and the seabed is crucial for design. A series of large-scale plane strain model tests has been conducted to measure the response of a pipe segment partially embedded in soft clay, during large amplitude cyclic movements, mimicking consecutive thermal expansion and contraction at a bend in a pipeline. Four key stages in the force–displacement response have been identified: (i) breakout, (ii) suction release, (iii) resistance against a steadily growing active berm, and (iv) additional resistance during collection of a pre-existing dormant berm. A simple upper bound solution is proposed to model the observed response. This solution captures the experimental trends including growth of the active berm and collection of dormant berms. This approach is the first attempt to quantitatively model the mechanisms underlying the response during large-displacement lateral sweeps of an on-bottom pipeline, accounting for the growth of soil berms.en_HK
dc.languageengen_HK
dc.publisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cgjen_HK
dc.rightsCanadian Geotechnical Journal. Copyright © N R C Research Press.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPublisher PDF may be archived 6 months after publicationen_HK
dc.subjectPipelineen_HK
dc.subjectThermal bucklingen_HK
dc.subjectClayen_HK
dc.subjectPhysical modellingen_HK
dc.subjectUpper bound solutionen_HK
dc.titleLarge-scale modelling of soil-pipe interaction during large amplitude cyclic movements of partially embedded pipelinesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0008-3674&volume=44&issue=8&spage=977&epage=996&date=2007&atitle=Large-scale+modelling+of+soil-pipe+interaction+during+large+amplitude+cyclic+movements+of+partially+embedded+pipelinesen_HK
dc.identifier.emailCheuk, CY: cycheuk@hkucc.hku.hken_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1139/T07-037en_HK
dc.identifier.scopuseid_2-s2.0-36148982679-
dc.identifier.hkuros146121-
dc.identifier.isiWOS:000251061800006-

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