In situ experiment of wave-induced excess pore pressure in the seabed sediment in Yellow River estuary

doi:10.16285/j.rsm.2015.11.003

	In situ experiment of wave-induced excess pore pressure in the seabed sediment in Yellow River estuary
	Liu Xiao-lei 1; Jia Yong-gang 1; Zheng Jie-wen 2
刊名	ROCK AND SOIL MECHANICS
	2015-11
卷号	36 期号:11 页码:3055-3062
关键词	seabed sediment excess pore pressure liquefaction soil mechanics Yellow River estuary
ISSN号	1000-7598
DOI	10.16285/j.rsm.2015.11.003
英文摘要	Both the special engineering geological properties and the complex engineering dynamic stability problems are closely related to the wave-induced dynamic response of pore pressure in seabed sediment in the Yellow River estuary. Four typical sites on the intertidal flats of the Yellow River delta are selected to simulate the wave action on the intact seabed sediments. Various testing methods, such as pore water piezometer test, field sediment strength test and sampling/laboratory geotechnical experiments, are employed to determine the variations in pore pressure and strength of the undisturbed seabed sediments at different stages under the cyclic loading. It is shown that during the cyclic loading process, the excess pore pressure response of undisturbed seabed sediment can be separated into 5 stages including gradual accumulation, partial dissipation, rapid accumulation, accumulated liquefaction and complete dissipation, which correspond to five processes of sediment strength variation including attenuation, increase, attenuation, loss and recovery, respectively. The grain size composition and structural strength dominate the excess pore pressure response. The wave-induced liquefied depth of intact seabed sediment is significantly affected by the initial physical properties such as dry density, void ratio, saturation degree, etc. To a large extent, the relative amount of fine grained components also controls the liquefaction characteristics of sediment in the Yellow River estuary.
资助项目	China Postdoctoral Science Foundation[2014M561963]
WOS研究方向	Engineering
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000409747600003
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24683]
专题	自然资源部第一海洋研究所
通讯作者	Liu Xiao-lei
作者单位	1.Ocean Univ China, Coll Environm Sci & Engn, Shandong Prov Key Lab Marine Environm & Geol Engn, Qingdao 266100, Shandong, Peoples R China 2.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Liu Xiao-lei,Jia Yong-gang,Zheng Jie-wen. In situ experiment of wave-induced excess pore pressure in the seabed sediment in Yellow River estuary[J]. ROCK AND SOIL MECHANICS,2015,36(11):3055-3062.
APA	Liu Xiao-lei,Jia Yong-gang,&Zheng Jie-wen.(2015).In situ experiment of wave-induced excess pore pressure in the seabed sediment in Yellow River estuary.ROCK AND SOIL MECHANICS,36(11),3055-3062.
MLA	Liu Xiao-lei,et al."In situ experiment of wave-induced excess pore pressure in the seabed sediment in Yellow River estuary".ROCK AND SOIL MECHANICS 36.11(2015):3055-3062.