Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism

doi:10.1016/j.oceaneng.2010.09.006

IMECH-IR > 水动力学与海洋工程重点实验室(2009-2011)

	Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism
	Gao FP(高福平); Yan SM(闫术明); Yang B(杨兵); Luo CC(雒承才); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
发表期刊	Ocean Engineering
	2011
卷号	38 期号:7 页码:934-942
ISSN	0029-8018
摘要	The steady flow-induced instability of a partially embedded pipeline involves a complex process of pipe-soil interaction. In accordance with the hydrodynamic loading and the dimensionless analyses, a series of pipe-soil interaction tests have been conducted with an updated pipe-soil interaction facility including a load-displacement synchronous measurement system, to reveal the underlying pipe-soil interaction mechanism. The effects of pipe surface roughness, end-constraint and initial embedment are investigated, respectively. The values of lateral-soil-resistance coefficient for the rough pipes are bigger than those for the smooth pipes. For a fixed value of non-dimensional submerged weight, the values of lateral-soil-resistance coefficient for the anti-rolling pipes are much larger than those for the freely laid pipes. The effects of initial embedment on the ultimate soil resistance get less with the decrease of the submerged weight of the pipe. A comparison is made between the results of the present mechanical-actuator tests and those of the previous water-flume tests, indicating that those results are quite comparable. For the equivalent level of dimensionless submerged weight, the directly laid pipe in currents has higher lateral stability than in waves. (C) 2010 Elsevier Ltd. All rights reserved.
关键词	Submarine Pipeline On-bottom Stability Pipe-soil Interaction Ocean Currents Sandy Seabed Stability Currents
学科领域	Engineering ; Oceanography ; Water Resources
DOI	10.1016/j.oceaneng.2010.09.006
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000291920300012
关键词[WOS]	STABILITY ; CURRENTS
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
项目资助者	Financial support from Knowledge Innovation Program of the Chinese Academy of Sciences (Grant no. KJCX2-YW-L02) is greatly appreciated.
课题组名称	LMFS流固土耦合力学(LHO)
论文分区	一类
引用统计	被引频次：25[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/311007/45035
专题	水动力学与海洋工程重点实验室(2009-2011)
通讯作者	Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Gao FP,Yan SM,Yang B,et al. Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism[J]. Ocean Engineering,2011,38,7,:934-942.
APA	高福平,闫术明,杨兵,雒承才,&Gao, FP .(2011).Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism.Ocean Engineering,38(7),934-942.
MLA	高福平,et al."Steady flow-induced instability of a partially embedded pipeline: Pipe-soil interaction mechanism".Ocean Engineering 38.7(2011):934-942.

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