Modelling the wave-induced instantaneous liquefaction in a non-cohesive seabed as a nonlinear complementarity problem

doi:10.1016/j.compgeo.2021.104275

IMECH-IR > 流固耦合系统力学重点实验室

	Modelling the wave-induced instantaneous liquefaction in a non-cohesive seabed as a nonlinear complementarity problem
	Zhou, Mozhen 1; Liu, Hui 2; Jeng, Dong-Sheng 3; Qi WG(漆文刚)4,5 ; Fang, Qian 1
通讯作者	Qi, Wengang(qiwengang@imech.ac.cn)
发表期刊	COMPUTERS AND GEOTECHNICS
	2021-09-01
卷号	137 页码:18
ISSN	0266-352X
摘要	The estimation of the wave-induced instantaneous liquefaction is particularly important for the design of foundations of offshore structures. Regarding the occurrence of liquefaction in a non-cohesive seabed, most existing studies using constant permeability were found to cause fallacious tensile stresses in the liquefied zone and further pollute the overall pore pressure distribution. A dynamic permeability model was previously presented to mitigate the shortcoming but posed difficulties in the nonlinear convergence. To overcome the shortcoming of the previous studies, this study proposes the concept of modelling the liquefaction-involved wave-seabed interactions as a nonlinear complementarity problem, wherein a Karush-Kuhn-Tucker condition is constructed, based on revisiting the liquefaction criterion most widely applied in ocean engineering. The Lagrange multiplier method and the primal-dual active set strategy are employed to numerically deal with the nonlinear complementarity problem. The performance of the chosen multiplier space is investigated by theoretical analyzing and numerical modelling. Compared with the previous dynamic permeability model, the present model is totally free of extra parameters and precisely fulfills the no-tension requirement. Moreover, the difficulties of dynamic permeability in the nonlinear convergence are overcome and no divergence is observed in the numerical tests.
关键词	Nonlinear complementarity problem Karush-Kuhn-Tucker (KKT) condition Lagrange multiplier method Soil liquefaction Wave-seabed interactions
DOI	10.1016/j.compgeo.2021.104275
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000692634100004
关键词[WOS]	INDUCED PORE PRESSURE ; MONO-PILE ; NUMERICAL-SIMULATION ; BURIED PIPELINE ; CRACK-GROWTH ; SAND ; SOIL ; ACCUMULATION ; PERMEABILITY ; SEDIMENT
WOS研究方向	Computer Science ; Engineering ; Geology
WOS类目	Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary
资助项目	Fundamental Research Funds for the Central Universities[2021JBM034] ; National Natural Science Foundation of China[51808034] ; National Natural Science Foundation of China[11972036]
项目资助者	Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China
论文分区	一类
力学所作者排名	1
RpAuthor	Qi, Wengang
引用统计	被引频次：9[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/311007/87412
专题	流固耦合系统力学重点实验室
作者单位	1.Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, Beijing 100044, Peoples R China; 2.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China; 3.Griffith Univ, Sch Engn & Built Environm, Gold Coast Campus, Gold Coast, Qld 4222, Australia; 4.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Mozhen,Liu, Hui,Jeng, Dong-Sheng,et al. Modelling the wave-induced instantaneous liquefaction in a non-cohesive seabed as a nonlinear complementarity problem[J]. COMPUTERS AND GEOTECHNICS,2021,137:18.
APA	Zhou, Mozhen,Liu, Hui,Jeng, Dong-Sheng,漆文刚,&Fang, Qian.(2021).Modelling the wave-induced instantaneous liquefaction in a non-cohesive seabed as a nonlinear complementarity problem.COMPUTERS AND GEOTECHNICS,137,18.
MLA	Zhou, Mozhen,et al."Modelling the wave-induced instantaneous liquefaction in a non-cohesive seabed as a nonlinear complementarity problem".COMPUTERS AND GEOTECHNICS 137(2021):18.

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