Sequential Evolution of Residual Liquefaction in a Silty Seabed: Effect of Wave-Loading History

doi:10.3390/jmse12050750

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-)

	Sequential Evolution of Residual Liquefaction in a Silty Seabed: Effect of Wave-Loading History
	Li, Changfei 2,3; Wang, Yifa 1; Yu, Jiahao 2,3; Qi, Wengang 2,3; Gao, Fuping 2,3
刊名	JOURNAL OF MARINE SCIENCE AND ENGINEERING
	2024-05-01
卷号	12 期号:5 页码:17
关键词	residual liquefaction excess pore pressure wave-loading history silty seabed flume observation
DOI	10.3390/jmse12050750
通讯作者	Gao, Fuping(fpgao@imech.ac.cn)
英文摘要	Multiple liquefaction events may occur if a seabed is subjected to repeated but intermittent wave loadings. This study aimed to investigate the influence of the wave-loading history on the evolution of residual liquefaction in a silty seabed through a series of wave flume tests. The flume observations reveal that the preceding wave-loading history results in the densification of the silt bed and a noticeable settlement of the mudline. Meanwhile, the ultimate liquefaction depth, maximum amplitude of interfacial waves, and mudline settlement decrease due to prior wave actions. Both the maximum residual pore pressure ratio and the amplification ratio of transient pore pressure exhibit a declining trend with an increasing number of wave exposures, indicating that the liquefaction resistance of the soil is obviously enhanced. Throughout the continuous liquefaction stage, the residual pore pressure in liquefied soil regions maintains its maximum value. In contrast, the pore pressure in the un-liquefied soil layer experiences slight dissipation after reaching its peak during wave activity. Moreover, the reshaped topography of the silt bed following liquefaction-densification cycles may serve as an indicator of prior liquefaction events, transforming from mud volcanoes into ripples as the liquefaction depth decreases.
资助项目	National Natural Science Foundation of China
WOS关键词	INDUCED PORE PRESSURE ; LIQUEFIED SOIL ; SAND ; APPROXIMATION ; PIPELINES ; RESPONSES ; SEDIMENT ; LAYER
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:001232437100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95477]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Gao, Fuping
作者单位	1.Univ Melbourne, Fac Engn & Informat Technol, Dept Infrastruct Engn, Melbourne, Vic 3010, Australia 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Changfei,Wang, Yifa,Yu, Jiahao,et al. Sequential Evolution of Residual Liquefaction in a Silty Seabed: Effect of Wave-Loading History[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2024,12(5):17.
APA	Li, Changfei,Wang, Yifa,Yu, Jiahao,Qi, Wengang,&Gao, Fuping.(2024).Sequential Evolution of Residual Liquefaction in a Silty Seabed: Effect of Wave-Loading History.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(5),17.
MLA	Li, Changfei,et al."Sequential Evolution of Residual Liquefaction in a Silty Seabed: Effect of Wave-Loading History".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.5(2024):17.