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 Publication | CHINA OCEAN ENGINEERING |
2012-06-01 | |
Volume | 26Issue:2Pages:185-194 |
ISSN | 0890-5487 |
Abstract | One 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. |
Keyword | Submarine Pipeline On-bottom Stability Ultimate Soil Resistance Ocean Current Sandy Seabed Instability Stability |
Subject Area | 岩体力学和土力学 |
URL | 查看原文 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000305466200001 |
Funding Organization | The project was financially supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KJCX2-YW-L07). |
Department | LMFS流固土耦合力学(LHO) |
Classification | Q3 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/46637 |
Collection | 流固耦合系统力学重点实验室 |
Corresponding Author | Gao, 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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