Ocean currents-induced pipeline lateral stability on sandy seabed

doi:10.1061/(ASCE)0733-9399(2007)133:10(1086)

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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.
发表期刊	Journal of Engineering Mechanics-ASCE
	2007
卷号	133 期号:10 页码:1086-1092
ISSN	0733-9399
摘要	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.
关键词	Submarine Pipelines Ocean Waves Stability Sea Floor Hydrodynamics Instability
DOI	10.1061/(ASCE)0733-9399(2007)133:10(1086)
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000249614600006
关键词[WOS]	INSTABILITY
WOS研究方向	Engineering
WOS类目	Engineering, Mechanical
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/33913
专题	力学所知识产出(1956-2008)
通讯作者	Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
推荐引用方式 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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