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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Effects of bedding planes on progressive failure of shales under uniaxial compression: Insights from acoustic emission characteristics

文献类型：期刊论文

作者Zhai, Mengyang3,4,5; Xue, Lei3,4,5; Bu, Fengchang3,4,5; Yang, Baicun2; Huang, Xiaolin3,4,5; Liang, Ning3,4,5; Ding, Hao1
刊名THEORETICAL AND APPLIED FRACTURE MECHANICS
出版日期2022-06-01
卷号119页码:14
关键词Shale progressive failure Bedding plane Anisotropy Acoustic emission characteristics Bonded-particle model Moment tensor
ISSN号0167-8442
DOI10.1016/j.tafmec.2022.103343
英文摘要It is believed that the bedding plane is one of controlling factors in progressive failure of shales and its characterization is of great significance in the gas shale engineering. However, it is often difficult to directly capture and visualize the progressive failure process of shales in practice. Although the microseismic method is feasible and economical to overcome this problem, to date, the effect of bedding plane on progressive failure of shales is still not fully clarified by this method. Here, we use the bonded-particle model (BPM) embedded with moment tensor algorithm to explore the progressive failure process and acoustic emission (AE) characteristics of shales under uniaxial compression. The macro mechanical behaviors such as stress-strain response and failure modes of shales were well reproduced by BPM. Meanwhile, AE characteristics were systematically monitored and analyzed during the progressive failure process. Then, the failure type dependent on layer orientation was determined by the moment tensor decomposition. And bedding-orientation-controlled crack stress thresholds as well as the degree of progressive failure could be captured by the AE cumulative number and hits. It was found that b-value in post-peak stage was susceptive to layer orientation and could be used as the indicator of the fracture complexity. Also, proportion of shear AE sources have a good consistence with fracture complexity, which suggests that shear failures favor the complex fracture formation. Our study provided a new insight into effects of bedding planes on progressive failure of shales from the viewpoint of AE characteristics.
WOS关键词BONDED-PARTICLE MODEL ; ROCK-LIKE MATERIAL ; PROPAGATION THRESHOLDS ; MECHANICAL-BEHAVIOR ; LAYER ORIENTATION ; ANISOTROPIC SHALE ; CRACK INITIATION ; MOMENT TENSORS ; SINGLE FLAW ; B-VALUE
资助项目National Key Research and Development Program of China[2019YFC1509701] ; National Natural Science Foundation of China[42090052] ; National Natural Science Foundation of China[41977249] ; National Natural Science Foundation of China[42007243] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201903402]
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:000806774500004
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/106107]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Xue, Lei; Huang, Xiaolin
作者单位1.China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China
2.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhai, Mengyang,Xue, Lei,Bu, Fengchang,et al. Effects of bedding planes on progressive failure of shales under uniaxial compression: Insights from acoustic emission characteristics[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2022,119:14.
APA Zhai, Mengyang.,Xue, Lei.,Bu, Fengchang.,Yang, Baicun.,Huang, Xiaolin.,...&Ding, Hao.(2022).Effects of bedding planes on progressive failure of shales under uniaxial compression: Insights from acoustic emission characteristics.THEORETICAL AND APPLIED FRACTURE MECHANICS,119,14.
MLA Zhai, Mengyang,et al."Effects of bedding planes on progressive failure of shales under uniaxial compression: Insights from acoustic emission characteristics".THEORETICAL AND APPLIED FRACTURE MECHANICS 119(2022):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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