| 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.
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| 发表期刊 | CHINA OCEAN ENGINEERING
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| 2012-06-01
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| 卷号 | 26期号:2页码:185-194 |
| ISSN | 0890-5487
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| 摘要 | 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. |
| 关键词 | Submarine Pipeline
On-bottom Stability
Ultimate Soil Resistance
Ocean Current
Sandy Seabed
Instability
Stability
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| 学科领域 | 岩体力学和土力学
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000305466200001
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| 项目资助者 | The project was financially supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KJCX2-YW-L07).
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| 课题组名称 | LMFS流固土耦合力学(LHO)
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| 论文分区 | Q3
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/46637
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| 专题 | 流固耦合系统力学重点实验室
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| 通讯作者 | Gao, FP; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
推荐引用方式
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.
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| 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.
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| 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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