Acoustic emission pattern of shale under uniaxial deformation

doi:10.1680/jgele.17.00056

	Acoustic emission pattern of shale under uniaxial deformation
	Wang, Y.1; Li, C. H.1; Hu, Y. Z.2; Miao, S. J.1
刊名	GEOTECHNIQUE LETTERS
	2017-12-01
卷号	7 期号:4 页码:323-329
关键词	Anisotropy Laboratory Tests Rocks/rock Mechanics
ISSN号	2049-825X
DOI	10.1680/jgele.17.00056
文献子类	Article
英文摘要	The brittle fracture mechanism of shale is an important issue to both borehole stability and hydraulic fracturing. A number of experimental studies on shale macroscopic mechanical properties have been carried out; however, the acoustic emission (AE) patterns of anisotropic shale are not fully understood. In this paper, a series of uniaxial compressive strength tests were conducted on cylindrical shale obtained by drilling at different orientations to the bedding plane. The anisotropic failure modes of shale samples have been monitored by real-time AE monitoring and stress-strain response, under ambient conditions and uniaxial stresses. The experimental results suggest that the pronounced bedding planes of shale have a significant influence on the mechanical properties and the AE responses. The AE counts and AE accumulative energy release curves clearly indicate the initiation and propagation of cracks during compression, and the 'U' shaped curves well reflect the anisotropic failure mechanism. The sounded foliation in the shale formation results in the anisotropy of elasticity, strength, AE counts and accumulated energy release from which the changes in strength dominate the entire failure pattern of shale samples. It is suggested that the AE activities monitored during deformation can provide good information to grasp the anisotropic failure mechanism of shale.
WOS关键词	MECHANICAL-PROPERTIES ; CONFINING PRESSURES ; BRITTLENESS ; ANISOTROPY ; FAILURE ; ROCKS
WOS研究方向	Engineering
语种	英语
出版者	ICE PUBLISHING
WOS记录号	WOS:000419274900008
资助机构	National Natural Science Foundation of China(41502294 ; National Natural Science Foundation of China(41502294 ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Technologies Research & Development programme(2017YFC0804609) ; National Key Technologies Research & Development programme(2017YFC0804609) ; 51574014) ; 51574014) ; National Natural Science Foundation of China(41502294 ; National Natural Science Foundation of China(41502294 ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Technologies Research & Development programme(2017YFC0804609) ; National Key Technologies Research & Development programme(2017YFC0804609) ; 51574014) ; 51574014) ; National Natural Science Foundation of China(41502294 ; National Natural Science Foundation of China(41502294 ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Technologies Research & Development programme(2017YFC0804609) ; National Key Technologies Research & Development programme(2017YFC0804609) ; 51574014) ; 51574014) ; National Natural Science Foundation of China(41502294 ; National Natural Science Foundation of China(41502294 ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; Fundamental Research Funds for the Central Universities(2302017FRF-TP-17-027A1) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Basic Research Program of China (973 Program)(2015CB060200) ; National Key Technologies Research & Development programme(2017YFC0804609) ; National Key Technologies Research & Development programme(2017YFC0804609) ; 51574014) ; 51574014)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82472]
专题	中国科学院地质与地球物理研究所
通讯作者	Wang, Y.
作者单位	1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Dept Civil Engn, Beijing Key Lab Urban Underground Space Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y.,Li, C. H.,Hu, Y. Z.,et al. Acoustic emission pattern of shale under uniaxial deformation[J]. GEOTECHNIQUE LETTERS,2017,7(4):323-329.
APA	Wang, Y.,Li, C. H.,Hu, Y. Z.,&Miao, S. J..(2017).Acoustic emission pattern of shale under uniaxial deformation.GEOTECHNIQUE LETTERS,7(4),323-329.
MLA	Wang, Y.,et al."Acoustic emission pattern of shale under uniaxial deformation".GEOTECHNIQUE LETTERS 7.4(2017):323-329.