IMECH-IR  > 流固耦合系统力学重点实验室
Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed
Gao FP(高福平); Wang N; Li JH; Han XT; Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.; Gao, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Source PublicationCANADIAN GEOTECHNICAL JOURNAL
2016
Volume53Issue:11Pages:1822-1830
ISSN0008-3674
AbstractAs offshore exploitation moves to deeper waters, ocean currents become the prevailing hydrodynamic loads on pipelines, and at the same time a sloping seabed is always encountered. The prediction of lateral soil resistance is vital in evaluating pipeline on-bottom stability. Unlike previous pipe-soil interaction models used mainly for horizontal seabed conditions, a pipe-soil interaction model for current-induced downslope and upslope instabilities is proposed by using the limit equilibrium approach. The Coulomb's theory of passive earth pressure for the sloping seabed is incorporated in the derivation. The model verification with existing full-scale tests shows good agreement between the experimental results and predicted ones. Parametric study indicates that the effect of slope angle on pipeline lateral soil resistance is significant in the examined range of slope angle from -15 degrees to 15 degrees. The critical pipeline embedment and corresponding passive pressure decrease approximately linearly with increasing slope angle.
KeywordSubmarine Pipeline On-bottom Stability Sandy Seabed Analytical Study Pipe-soil Interaction Sloping Seabed
DOI10.1139/cgj-2016-0071
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000387763600006
WOS Keywordsubmarine pipeline ; on-bottom stability ; sandy seabed ; analytical study ; pipe-soil interaction ; sloping seabed
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
Funding OrganizationMajor State Basic Research Development Program of China (973 Program) [2014CB046204] ; National Natural Science Foundation of China [11232012, 11372319] ; Youth Innovation Promotion Association CAS
DepartmentLMFS流固土耦合力学(LHO)
Classification二类
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59953
Collection流固耦合系统力学重点实验室
Corresponding AuthorGao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.; Gao, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Gao FP,Wang N,Li JH,et al. Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed[J]. CANADIAN GEOTECHNICAL JOURNAL,2016,53(11):1822-1830.
APA 高福平,Wang N,Li JH,Han XT,Gao, FP ,&Gao, FP .(2016).Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed.CANADIAN GEOTECHNICAL JOURNAL,53(11),1822-1830.
MLA 高福平,et al."Pipe-soil interaction model for current-induced pipeline instability on a sloping sandy seabed".CANADIAN GEOTECHNICAL JOURNAL 53.11(2016):1822-1830.
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