Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach

doi:10.3390/jmse12030373

IMECH-IR > 流固耦合系统力学重点实验室

	Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach
	Han, Shichong 1; Zhou, Mozhen 1; Zhang, Dingli 1; Qi WG(漆文刚)2,3 ; Xue, Chaodong 1; Fang, Qian 1
通讯作者	Zhou, Mozhen([email protected])
发表期刊	JOURNAL OF MARINE SCIENCE AND ENGINEERING
	2024-03-01
卷号	12 期号:3 页码:21
摘要	In complex marine environments, the wave-induced instantaneous liquefaction of the seabed is a key issue for the long-term safety control of marine structures. Existing computational frameworks for instantaneous liquefaction result in unreasonable tensile stresses in a non-cohesive seabed. To address this issue, a liquefaction-associated non-Darcy flow model has been proposed, but it has only been applied to the scenario of a pure seabed without a structure. In this study, we applied the previously proposed non-Darcy flow model to investigate the mechanism of wave-seabed-structure interactions under extreme wave loading considering a pipeline fully buried in a non-cohesive seabed. By comparing the liquefaction depths in the presence and absence of structures, it was found that the existence of structures weakens the attenuation of the pore pressure amplitude and influences the overall pore pressure distribution. Parametric studies were conducted. It was found that the liquefaction depth from the non-Darcy model is approximately 0.73 times that from the traditional Darcy model, regardless of whether or not a pipeline is involved. A quantitative relationship between the wave loading and structural size was established. The liquefied zone above the buried pipeline was found to be smaller than that in a pure seabed without a structure. A tentative explanation is provided for this phenomenon.
关键词	extreme wave loading wave-induced seabed liquefaction non-Darcy flow model wave-seabed-structure interactions non-cohesive seabed
DOI	10.3390/jmse12030373
收录类别	SCI
语种	英语
WOS记录号	WOS:001192479000001
关键词[WOS]	INDUCED PORE PRESSURE ; NUMERICAL-MODEL ; MOMENTARY LIQUEFACTION ; NONLINEAR-WAVE ; SAND ; SOIL ; PERMEABILITY ; SOLIDIFICATION ; ACCUMULATION ; DISSIPATION
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Ocean ; Oceanography
资助项目	Fundamental Research Funds for the Central Universities
项目资助者	Fundamental Research Funds for the Central Universities
论文分区	二类/Q1
力学所作者排名	3+
RpAuthor	Zhou, Mozhen
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94861
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.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Han, Shichong,Zhou, Mozhen,Zhang, Dingli,et al. Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2024,12,3,:21.Rp_Au:Zhou, Mozhen
APA	Han, Shichong,Zhou, Mozhen,Zhang, Dingli,漆文刚,Xue, Chaodong,&Fang, Qian.(2024).Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(3),21.
MLA	Han, Shichong,et al."Wave-Induced Instantaneous Liquefaction of a Non-Cohesive Seabed around Buried Pipelines: A Liquefaction-Associated Non-Darcy Flow Model Approach".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.3(2024):21.