Experimental and Numerical Investigation of Rock Failure Process under Hydromechanical Coupling Action
文献类型：期刊论文
| 作者 | Zhu, Zeqi1,2,3,4; Mei, Xiancheng2,3,4; Li, Jianhe4; Sheng, Qian2,3 |
| 刊名 | LITHOSPHERE
 |
| 出版日期 | 2024 |
| 卷号 | 2024期号:1页码:11 |
| ISSN号 | 1941-8264 |
| DOI | 10.2113/2024/lithosphere_2023_317 |
| 英文摘要 | In order to study the initiation mechanism of rocks under hydromechanical coupling, hydromechanical coupling triaxial tests and acoustic emission tests were carried out on basalt in the Xiluodu hydropower station dam site area in southwestern China. The test results indicate that the basalt displays typical hard brittle behavior, and its peak strength increases as confining pressure rises. Conversely, the peak strength decreases gradually as the initial water pressure increases, which leads to decreased hardness. Meanwhile, tensile failure is the main crack initiation mode under hydromechanical coupling action. During the stable crack growth stage, tensile failure is predominant, complemented by shear failure, with failures mainly occurring in the rock middle position. Contrary to this, during the unstable stage, the rock failure is mainly due to shear failure. The critical pore water pressure failure criterion of rock crack initiation under hydromechanical coupling conditions is derived based on the test results and introduced into the numerical simulation. The hydromechanical coupling failure process and pore water pressure distribution law of basalt are analyzed, and the rationality of the critical pore water pressure failure criterion is verified. These findings are significant for understanding the rock failure process under hydromechanical coupling action and provide a valuable reference for future research. |
| 资助项目 | National Natural Science Foundation of China[U21A20159] ; National Natural Science Foundation of China[52009129] ; Project of Key Laboratory of Water Grid Project and Regulation of Ministry of Water Resources[QTKS0034W23291] ; Visiting Researcher Fund Program of State Key Laboratory of Water Resources Engineering and Management[2023SGG07] |
| WOS研究方向 | Geochemistry & Geophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001203132000001 |
| 出版者 | GEOSCIENCEWORLD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41164]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Mei, Xiancheng |
| 作者单位 | 1.Natl & Local Joint Engn Res Ctr Underwater Tunnel, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Changjiang Inst Survey Planning Design & Res, Minist Water Resources, Key Lab Water Grid Project & Regulat, Wuhan 430010, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Zeqi,Mei, Xiancheng,Li, Jianhe,et al. Experimental and Numerical Investigation of Rock Failure Process under Hydromechanical Coupling Action[J]. LITHOSPHERE,2024,2024(1):11. |
| APA | Zhu, Zeqi,Mei, Xiancheng,Li, Jianhe,&Sheng, Qian.(2024).Experimental and Numerical Investigation of Rock Failure Process under Hydromechanical Coupling Action.LITHOSPHERE,2024(1),11. |
| MLA | Zhu, Zeqi,et al."Experimental and Numerical Investigation of Rock Failure Process under Hydromechanical Coupling Action".LITHOSPHERE 2024.1(2024):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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