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	Yantu Lixue/Rock and Soil Mechanics
	2015
卷号	36 期号:11 页码:3055-3062
关键词	Consolidation Cyclic loads Dynamics Estuaries Liquefaction Pore pressure Rivers Soil liquefaction Soil mechanics Soil testing
ISSN号	10007598
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. © 2015, Academia Sinica. All right reserved.
资助项目	China Postdoctoral Science Foundation[2014M561963]
WOS研究方向	Engineering
语种	中文
出版者	Academia Sinica
WOS记录号	WOS:000409747600003
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/6636]
专题	自然资源部第一海洋研究所
作者单位	1.Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, College of Environmental Science and Engineering, Ocean University of China, Qingdao; Shandong; 266100, China; 2.Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao; Shandong; 266061, 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]. Yantu Lixue/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.Yantu Lixue/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".Yantu Lixue/Rock and Soil Mechanics 36.11(2015):3055-3062.