Post-peak deformation and failure behaviour of Jinping marble under true triaxial stresses
文献类型：期刊论文
| 作者 | Zheng, Zhi1,3; Feng, Xia-Ting2,3 ; Yang, Cheng-Xiang2; Zhang, Xi-Wei2; Li, Shao-Jun3; Qiu, Shi-Li3
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| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 265页码:12 |
| ISSN号 | 0013-7952 |
| 关键词 | True triaxial compression Post-peak behaviour sigma(2) effect Meso- and micro-failure Acoustic emission |
| DOI | 10.1016/j.enggeo.2019.105444 |
| 英文摘要 | The post-peak behaviour of rocks plays an important role in studying the stability of surrounding rocks. A series of true triaxial compression tests in high-low stress states were carried out on 58 Jinping marble specimens. The characteristics of complete stress strain curves, including the post-peak stage, the corresponding meso- and micro-failure characteristics with scanning electron microscopy (SEM), and the whole progressive failure processes with acoustic emission (AE), were analysed. With either decreasing sigma(3) or increasing sigma(2), the shapes of the post-peak curves change from Class I to Transition and then to Class II. Additionally, the changes have obvious stress boundaries. As sigma(2) increases at low-constant sigma(3) or sigma(3) decreases at constant sigma(2), the failure mode changes from tensile shear mixed failure or shear failure to tensile failure, and these changes correspond with the changes in the post-peak curves. Micro-failure of marble changes from intergranular failure at Class I to transgranular failure at Class II. The AE characteristics of the three typical post-peak progressive failure processes are significantly different, matching the brittle failure behaviour from weak to strong. This study enhances the knowledge of in situ failure mechanisms and the stability of deep-buried tunnels and caverns. |
| 资助项目 | National Natural Science Foundation of China[51621006] ; National Natural Science Foundation of China[51579043] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJ-SSW-DQC016] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000517660100018 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23529]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Xia-Ting |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Northeastern Univ, Key Lab, Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Zhi,Feng, Xia-Ting,Yang, Cheng-Xiang,et al. Post-peak deformation and failure behaviour of Jinping marble under true triaxial stresses[J]. ENGINEERING GEOLOGY,2020,265:12. |
| APA | Zheng, Zhi,Feng, Xia-Ting,Yang, Cheng-Xiang,Zhang, Xi-Wei,Li, Shao-Jun,&Qiu, Shi-Li.(2020).Post-peak deformation and failure behaviour of Jinping marble under true triaxial stresses.ENGINEERING GEOLOGY,265,12. |
| MLA | Zheng, Zhi,et al."Post-peak deformation and failure behaviour of Jinping marble under true triaxial stresses".ENGINEERING GEOLOGY 265(2020):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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