Four types of acoustic emission characteristics during granular stick-slip evolution

doi:10.1007/s11629-021-7012-z

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 综合测试与模拟中心

	Four types of acoustic emission characteristics during granular stick-slip evolution
	Liu Zi-ming 1,3; Jiang Yao 1,2,3; Wang Dao-jie 1,3; Fu Yan-ju 1,3
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2021-12-22
页码	13
关键词	Acoustic emission Granular material Deformation Direct shear test Friction Stick-slip
ISSN号	1672-6316
DOI	10.1007/s11629-021-7012-z
英文摘要	The shear behavior of granular materials plays an important role in understanding the occurrence of geological hazards. This study introduces the use of direct shear tests and acoustic emission (AE) technology on glass beads to investigate the distributions features of AE during the stick-slip processes. Results show that the shearing behavior of granular samples was shown as a series of similar, periodic stick-slip events. Some AE features - energy and Root Mean Square (RMS) - showed significant spatial clustering. Combined with the distribution of AE in the stick-slip event, the AE signal can be divided into four types: 1. low-energy and high-frequency AE, which represent particle friction; 2. high-energy and low-frequency AE, which represent structural failure, that is, the slip process; 3. low-RMS and low-frequency AE represent internal local failure; and 4. high-RMS and high-frequency AE caused by overall structure failure. The b-value representing the energy distribution of AEs is used to describe the changing of AE sources during shear process. In addition, the amount and energy of AE had a significant positive correlation with normal stress. The shear rate mainly affects the AE representing particle friction, and the faster the shear rate, the lower the incidence of these friction AEs. According to the time sequence of the occurrence of different types of AE, AE rate, b-value and local failure AE signal can be applied to the prediction or early warning of geological hazards.
资助项目	National Nature Science Foundation of China[41807278] ; National Nature Science Foundation of China[41790432] ; National Nature Science Foundation of China[U20A20112] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23090202] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences Grant[QYZDY-SSW-DQC006] ; CAS Pioneer Hundred Talents Program ; China-Pakistan Joint Research Center on Earth Sciences
WOS关键词	SLOW EARTHQUAKES ; COMPRESSION ; FAILURE ; SOILS ; PRECURSORS ; INSIGHTS ; BEHAVIOR ; SYSTEM
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000733876400005
资助机构	National Nature Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences Grant ; CAS Pioneer Hundred Talents Program ; China-Pakistan Joint Research Center on Earth Sciences
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/56353]
专题	综合测试与模拟中心成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	Jiang Yao
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.China Pakistan Joint Res Ctr Earth Sci CAS HEC, Islamabad 43320, Pakistan 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Liu Zi-ming,Jiang Yao,Wang Dao-jie,et al. Four types of acoustic emission characteristics during granular stick-slip evolution[J]. JOURNAL OF MOUNTAIN SCIENCE,2021:13.
APA	Liu Zi-ming,Jiang Yao,Wang Dao-jie,&Fu Yan-ju.(2021).Four types of acoustic emission characteristics during granular stick-slip evolution.JOURNAL OF MOUNTAIN SCIENCE,13.
MLA	Liu Zi-ming,et al."Four types of acoustic emission characteristics during granular stick-slip evolution".JOURNAL OF MOUNTAIN SCIENCE (2021):13.