Acoustic emission characteristics and cracking mechanism analysis of anisotropic shale containing a circular hole under uniaxial compression
文献类型：期刊论文
| 作者 | Feng, Xianhui5; Liu, Huilin4; Chen, Xu1; Chang, Weiche2; Xia, Kaizong3; Guo, Qifeng5; Liu, Liyuan5; Li, Mingjie6 |
| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 135页码:11 |
| 关键词 | Layer shale AE characteristics Fracture mode RA-AF Crack evolution |
| ISSN号 | 0167-8442 |
| DOI | 10.1016/j.tafmec.2024.104771 |
| 英文摘要 | Shale is a kind of layered sedimentary rock widely existing in nature. In slope engineering, tunnel engineering, shale gas engineering and other practical engineering, layer structure and orientation will lead to the structural strength reduction, easy to cause safety accidents. In this study, the acoustic emission (AE) characteristics and fracture modes of shale samples containing a circular hole were investigated by uniaxial compression tests with different bedding angles. The experimental results revealed that the fracture modes of the sample are affected not only by the dip angle of bedding, but also by the stress concentration caused by the hole. Different fracture modes lead to differences in AE characteristics such as ring number, b-value, energy and peak frequency. Compared with shear failure, the cumulative AE count and peak frequency of tensile failure are higher, and the change frequency of the b-value is higher. Additionally, according to the RA-AF distribution characteristics of the shale samples, AF = 10RA + 21 was confirmed as the dividing line of different crack types, and the dividing result was consistent with that of macroscopic cracks. According to this dividing line, the crack evolution process was analyzed, and it was found that the tensile cracks and shear cracks were concentrated in the peak stress and phase of crack steady growth respectively. The study of AE characteristics of shale will provide experimental basis and reference for guiding related engineering practice. |
| 资助项目 | Beijing Natural Science Foundation[2244099] ; China Postdoctoral Science Foundation[2023TQ0025] ; National Natural Science Foundation of China[52274072,42107208,52074020,52304122] ; Na-tional Key R & D Program of China[2021YFC2900500] ; Na-tional Key R & D Program of China[2021YFC3001302] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001363799100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43256]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Huilin |
| 作者单位 | 1.Chengdu Univ Technol, Key Lab Geohazard Prevent & Geoenvironm Protect, Chengdu 610059, Peoples R China 2.China Univ Technol, Dept Civil Engn & Hazard Mitigat, Taipei 11695, Taiwan 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 4.Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Hunan, Peoples R China 5.Univ Sci & Technol Beijing, Sch Civil & Resources Engn, Beijing 100083, Peoples R China 6.Kunming Met Res Inst Co Ltd, Kunming 650031, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Xianhui,Liu, Huilin,Chen, Xu,et al. Acoustic emission characteristics and cracking mechanism analysis of anisotropic shale containing a circular hole under uniaxial compression[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2025,135:11. |
| APA | Feng, Xianhui.,Liu, Huilin.,Chen, Xu.,Chang, Weiche.,Xia, Kaizong.,...&Li, Mingjie.(2025).Acoustic emission characteristics and cracking mechanism analysis of anisotropic shale containing a circular hole under uniaxial compression.THEORETICAL AND APPLIED FRACTURE MECHANICS,135,11. |
| MLA | Feng, Xianhui,et al."Acoustic emission characteristics and cracking mechanism analysis of anisotropic shale containing a circular hole under uniaxial compression".THEORETICAL AND APPLIED FRACTURE MECHANICS 135(2025):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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