Physical modeling of local scour development around a large-diameter monopile in combined waves and current

IMECH-IR > 流固耦合系统力学重点实验室

	Physical modeling of local scour development around a large-diameter monopile in combined waves and current
	Qi WG(漆文刚); Gao FP(高福平); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
发表期刊	COASTAL ENGINEERING
	2014-01
卷号	83 页码:72-81
ISSN	0378-3839
摘要	In most of the previous studies on local scour around pile foundations, wave-induced pore pressure response has not been taken into account. The local-scour and pore-pressure responses around a large-diameter monopile in combined waves and current have been physically modeled with a specially-designed flow-structure-soil interaction flume. In the series of experiments, the time developments of the scour-depth and the pore-pressure in the proximity of the model pile were measured simultaneously. Experimental results indicate that the wave-induced upward seepage under the wave troughs may weaken the buoyant unit weight of the surrounding sand, which brings the sand-bed more susceptible to scouring. The superimposition of the waves on a current has much effect on the time-development of local scour and the resulting equilibrium scour-depth, which is particularly obvious when the sand-bed is in the clear-water regime under the current or waves alone respectively. It is observed that the maximum flow velocity at the boundary layer for the following-current case is larger than that for the opposing-current case, which further results in faster time development of scour depth and greater equilibrium scour depth for the following-current case.
关键词	Monopile Local Scour Pore Pressure Combined Waves And Current
学科领域	水动力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000328662800008
项目资助者	National Natural Science Foundation of China [11232012, 10872198]; Major State Basic Research Development Program of China (973 Program) [2014CB046204]
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：183[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/311007/48087
专题	流固耦合系统力学重点实验室
通讯作者	Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Qi WG,Gao FP,Gao, FP . Physical modeling of local scour development around a large-diameter monopile in combined waves and current[J]. COASTAL ENGINEERING,2014,83:72-81.
APA	漆文刚,高福平,&Gao, FP .(2014).Physical modeling of local scour development around a large-diameter monopile in combined waves and current.COASTAL ENGINEERING,83,72-81.
MLA	漆文刚,et al."Physical modeling of local scour development around a large-diameter monopile in combined waves and current".COASTAL ENGINEERING 83(2014):72-81.

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