Submarine pipeline lateral instability on a sloping sandy seabed
文献类型：期刊论文
| 作者 | Gao FP(高福平) ; Han XT(韩希霆); Cao J; Sha Y; Cui JS(崔金声); Gao, FP
|
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 50页码:44-52 |
| 通讯作者邮箱 | fpgao@imech.ac.cn |
| 关键词 | Sloping seabed Deepwater pipeline On-bottom stability Ocean currents Partially-Embedded Pipeline Scour Flow Stability Currents |
| ISSN号 | 0029-8018 |
| 产权排序 | [Gao, Fu-Ping;Han, Xi-Ting; Cui, Jin-Sheng] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Cao, Jing; Sha, Yong] China Natl Offshore Oil Co CNOOC Res Inst, Beijing 100027, Peoples R China |
| 通讯作者 | Gao, FP ; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | Ocean-current induced pipeline on-bottom stability on a sloping sandy seabed involves a complex interaction between the hydrodynamic loading, the untrenched pipeline and the neighboring soil. In this study, a newly-designed pipe-soil interaction facility and a flow-structure-soil interaction flume have been utilized for full-scale physical modeling of the pipeline instability on a sloping sand-bed, including the downslope instability and the upslope instability. Unlike the pipeline lateral stability on the horizontal seabed, an initial lateral-soil-resistance is developed and the static-instability might be triggered for the sloping seabed. According to dimensionless analyses, an ultimate lateral-soil-resistance coefficient is proposed to describe the interaction of the pipe with the sloping sand-bed. Experimental results indicate that sand-bed slope angle, pipe submerged weight and end-constraints have much influence on pipe on-bottom stability. No matter for the upslope instability or the downslope instability, the corresponding lateral-soil-resistance coefficient for a sloping sand-bed is larger than that for a horizontal sand-bed. |
| 学科主题 | 流固耦合作用 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work is financially supported by Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KJCX2-YW-L02) and China National S&T Major Project (Grant No. 2008ZX05026-005-09). Helpful discussion with Senior Engineer X. Jia from CNOOC Research Institute and the technical assistances from Mr. F.L. Zhang and Mr. H.T. Zhang are greatly appreciated. |
| 原文出处 | http://dx.doi.org/10.1016/j.oceaneng.2012.05.012 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306769400006 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46647]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Gao, FP |
| 推荐引用方式 GB/T 7714 | Gao FP,Han XT,Cao J,et al. Submarine pipeline lateral instability on a sloping sandy seabed[J]. OCEAN ENGINEERING,2012,50:44-52. |
| APA | 高福平,韩希霆,Cao J,Sha Y,崔金声,&Gao, FP.(2012).Submarine pipeline lateral instability on a sloping sandy seabed.OCEAN ENGINEERING,50,44-52. |
| MLA | 高福平,et al."Submarine pipeline lateral instability on a sloping sandy seabed".OCEAN ENGINEERING 50(2012):44-52. |
入库方式： OAI收割
来源：力学研究所
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