Peak uplift resistance of offshore slender structures shallowly buried in the sloping seabed considering wave actions

doi:10.1016/j.apor.2022.103388

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Peak uplift resistance of offshore slender structures shallowly buried in the sloping seabed considering wave actions
	Yang, Hongkuan 3; Guo, Zhen 2,3; Wang, Lizhong 3; Qi WG(漆文刚)1
刊名	APPLIED OCEAN RESEARCH
	2022-12-01
卷号	129 页码:14
关键词	Sloping seabed Wave actions Slender structures Peak uplift resistance Reduction
ISSN号	0141-1187
DOI	10.1016/j.apor.2022.103388
通讯作者	Guo, Zhen(nehzoug@163.com)
英文摘要	The current practice for the pipe-soil interaction mainly focuses on the pipelines which are buried in the level ground, and ocean waves are rarely considered. However, sloping topographies and wave actions are often encountered by offshore slender structures. This study numerically investigated their peak uplift resistances, taking multiple factors, i.e., the slope effect and wave effect, into account simultaneously. The numerical model was first verified by the available analytical and experimental results. It was found that the normalized peak uplift resistance decreases as the slope angle increases, especially for smaller burial ratios. The presence of wave troughs weakens the traditional peak uplift resistance. For the given burial ratio and slope angle, the reduction in the peak uplift resistance increases almost linearly with the local wave steepness. For steeper slopes and smaller burial ratios, this reduction becomes larger because of more intense upward seepage. The effects of local relative water depth and wave period were also studied. Finally, a preliminary formula for the reduction in the peak uplift resistance of shallowly-buried offshore slender structures was proposed to consider the slope effect and wave effect.
分类号	二类/Q1
资助项目	Finance Science and Technology Project of Hainan Province ; Major Science and Technology Project of Sanya ; Natural Science Foundation of Zhejiang Province ; [ZDKJ202019] ; [SKJC-2020-01- 016] ; [LR22E080005]
WOS关键词	PIPE-SOIL INTERACTION ; INDUCED LIQUEFACTION ; EFFECTIVE STRESSES ; MARINE PIPELINES ; PORE PRESSURES ; SAND ; INSTABILITY ; FLOTATION ; STABILITY ; FORCES
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000883892000001
资助机构	Finance Science and Technology Project of Hainan Province ; Major Science and Technology Project of Sanya ; Natural Science Foundation of Zhejiang Province
其他责任者	Guo, Zhen
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90780]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Zhejiang Univ, Hainan Inst, Sanya 572000, Peoples R China; 3.Zhejiang Univ, Coll Civil Engn & Architecture, Key Lab Offshore Geotech & Mat Zhejiang Prov, Hangzhou 310058, Peoples R China;
推荐引用方式 GB/T 7714	Yang, Hongkuan,Guo, Zhen,Wang, Lizhong,et al. Peak uplift resistance of offshore slender structures shallowly buried in the sloping seabed considering wave actions[J]. APPLIED OCEAN RESEARCH,2022,129:14.
APA	Yang, Hongkuan,Guo, Zhen,Wang, Lizhong,&漆文刚.(2022).Peak uplift resistance of offshore slender structures shallowly buried in the sloping seabed considering wave actions.APPLIED OCEAN RESEARCH,129,14.
MLA	Yang, Hongkuan,et al."Peak uplift resistance of offshore slender structures shallowly buried in the sloping seabed considering wave actions".APPLIED OCEAN RESEARCH 129(2022):14.