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| Ocean currents-induced pipeline lateral stability on sandy seabed | |
Gao FP(高福平) ; Yan SM; Yang B(杨兵); Wu YX(吴应湘); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
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| Source Publication | Journal of Engineering Mechanics-ASCE
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| 2007 | |
| Volume | 133Issue:10Pages:1086-1092 |
| ISSN | 0733-9399 |
| Abstract | Unlike previous mechanical actuator loading methods, in this study, a hydrodynamic loading method was employed in a flow flume for simulating ocean currents induced submarine pipeline stability on a sandy seabed. It has been observed that, in the process of pipeline losing lateral stability in currents, there usually exist three characteristic times: (1) onset of sand scour; (2) slight lateral displacement of pipeline; and (3) breakout of pipeline. An empirical linear relationship is established between the dimensionless submerged weight of pipeline and Froude number for describing pipeline lateral stability in currents, in which the current-pipe-soil coupling effects are reflected. Scale effects are examined with the method of "modeling of models," and the sand particle size effects on pipeline stability are also discussed. Moreover, the pipeline stability in currents is compared with that in waves, which indicates that the pipeline laid directly upon the sandy seabed is more laterally stable in currents than in waves. |
| Keyword | Submarine Pipelines Ocean Waves Stability Sea Floor Hydrodynamics Instability |
| DOI | 10.1061/(ASCE)0733-9399(2007)133:10(1086) |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000249614600006 |
| WOS Keyword | INSTABILITY |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/33913 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Gao FP,Yan SM,Yang B,et al. Ocean currents-induced pipeline lateral stability on sandy seabed[J]. Journal of Engineering Mechanics-ASCE,2007,133,10,:1086-1092. |
| APA | 高福平,Yan SM,杨兵,吴应湘,&Gao, FP .(2007).Ocean currents-induced pipeline lateral stability on sandy seabed.Journal of Engineering Mechanics-ASCE,133(10),1086-1092. |
| MLA | 高福平,et al."Ocean currents-induced pipeline lateral stability on sandy seabed".Journal of Engineering Mechanics-ASCE 133.10(2007):1086-1092. |
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