IMECH-IR  > 流固耦合系统力学重点实验室
A numerical model for ultimate soil resistance to an untrenched pipeline under ocean currents
Gao FP(高福平); Han XT(韩希霆); Yan SM(闫术明); Gao, FP; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationCHINA OCEAN ENGINEERING
2012-06-01
Volume26Issue:2Pages:185-194
ISSN0890-5487
AbstractOne of the main concerns for pipeline on-bottom stability design is to properly predict ultimate soil resistance in severe ocean environments. A plane-strain finite element model is proposed to investigate the ultimate soil resistance to the partially-embedded pipeline under the action of ocean currents. Two typical end-constraints of the submarine pipelines are examined, i.e. freely-laid pipes and anti-rolling pipes. The proposed numerical model is verified with the existing mechanical-actuator experiments. The magnitude of lateral-soil-resistance coefficient for the examined anti-rolling pipes is much larger than that for the freely-laid pipes, indicating that the end-constraint condition significantly affects the lateral stability of the untrenched pipeline under ocean currents. The parametric study indicates that, the variation of lateral-soil-resistance coefficient with the dimensionless submerged weight of pipe is affected greatly by the angle of internal friction of soil, the pipe-soil friction coefficient, etc.
KeywordSubmarine Pipeline On-bottom Stability Ultimate Soil Resistance Ocean Current Sandy Seabed Instability Stability
Subject Area岩体力学和土力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000305466200001
Funding OrganizationThe project was financially supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KJCX2-YW-L07).
DepartmentLMFS流固土耦合力学(LHO)
ClassificationQ3
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46637
Collection流固耦合系统力学重点实验室
Corresponding AuthorGao, FP; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Gao FP,Han XT,Yan SM,et al. A numerical model for ultimate soil resistance to an untrenched pipeline under ocean currents[J]. CHINA OCEAN ENGINEERING,2012,26(2):185-194.
APA 高福平,韩希霆,闫术明,Gao, FP,&Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China..(2012).A numerical model for ultimate soil resistance to an untrenched pipeline under ocean currents.CHINA OCEAN ENGINEERING,26(2),185-194.
MLA 高福平,et al."A numerical model for ultimate soil resistance to an untrenched pipeline under ocean currents".CHINA OCEAN ENGINEERING 26.2(2012):185-194.
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