IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism
Gao FP(高福平); Yan SM(闫术明); Yang B(杨兵); Luo CC(雒承才); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
Source PublicationOcean Engineering
2011
Volume38Issue:7Pages:934-942
ISSN0029-8018
AbstractThe steady flow-induced instability of a partially embedded pipeline involves a complex process of pipe-soil interaction. In accordance with the hydrodynamic loading and the dimensionless analyses, a series of pipe-soil interaction tests have been conducted with an updated pipe-soil interaction facility including a load-displacement synchronous measurement system, to reveal the underlying pipe-soil interaction mechanism. The effects of pipe surface roughness, end-constraint and initial embedment are investigated, respectively. The values of lateral-soil-resistance coefficient for the rough pipes are bigger than those for the smooth pipes. For a fixed value of non-dimensional submerged weight, the values of lateral-soil-resistance coefficient for the anti-rolling pipes are much larger than those for the freely laid pipes. The effects of initial embedment on the ultimate soil resistance get less with the decrease of the submerged weight of the pipe. A comparison is made between the results of the present mechanical-actuator tests and those of the previous water-flume tests, indicating that those results are quite comparable. For the equivalent level of dimensionless submerged weight, the directly laid pipe in currents has higher lateral stability than in waves. (C) 2010 Elsevier Ltd. All rights reserved.
KeywordSubmarine Pipeline On-bottom Stability Pipe-soil Interaction Ocean Currents Sandy Seabed Stability Currents
Subject AreaEngineering ; Oceanography ; Water Resources
DOI10.1016/j.oceaneng.2010.09.006
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000291920300012
WOS KeywordSTABILITY ; CURRENTS
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
Funding OrganizationFinancial support from Knowledge Innovation Program of the Chinese Academy of Sciences (Grant no. KJCX2-YW-L02) is greatly appreciated.
DepartmentLMFS流固土耦合力学(LHO)
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45035
Collection水动力学与海洋工程重点实验室(2009-2011)
Corresponding AuthorGao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Gao FP,Yan SM,Yang B,et al. Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism[J]. Ocean Engineering,2011,38(7):934-942.
APA 高福平,闫术明,杨兵,雒承才,&Gao, FP .(2011).Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism.Ocean Engineering,38(7),934-942.
MLA 高福平,et al."Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism".Ocean Engineering 38.7(2011):934-942.
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