The influence of steep faults at various avoidance distances on the stability of hard rock caverns: Physical model experiments and DEM simulations
文献类型：期刊论文
| 作者 | Xu, Huai-sheng2,3; Li, Shao-jun2; Xu, Ding-ping2; Chen, Shi-jie4; Feng, Guang-liang2; Jiang, Quan2; Zhu, Xin-hao2; Duan, Shu-qian1 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 154页码:16 |
| 关键词 | Hard rock cavern Steep fault-cavern distance Failure mechanism Physical model experiment Discrete element method |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2024.106100 |
| 英文摘要 | The influence of avoidance distances from steep faults on the stability of hard rock caverns is pivotal in deep engineering, yet research in this area remains scant. This study constructed 10 physical models of granite caverns, incorporating artificial cement-filled faults at various avoidance distances ranging from 0 to 2.4 cavern diameters. Biaxial compression experiments were conducted, utilizing acoustic emission and digital image correlation techniques for monitoring. Coupled with discrete element method simulations, the analysis explored the influence mechanisms of fault-cavern distance on the failure modes of hard rock caverns. The results reveal a positive correlation between the peak strength of specimens and fault-cavern distance. As the distance approaches 0.6 cavern diameters, the fault significantly influences the displacement field, crack number, distribution, and crack initiation location within the specimens. Furthermore, even at 1.2 cavern diameters, the fault still exhibits a notable influence on the stress field, external load transfer paths, cavern failure modes, and the size distribution of spalling debris. These findings can guide the selection of sites for deep hard rock caverns, ensuring a minimum fault-cavern distance of 1.2 cavern diameters to mitigate the risks posed by steep faults to such caverns. |
| 资助项目 | National Natural Science Foundation of China[52279117] ; National Natural Science Foundation of China[52325905] ; National Natural Science Foundation of China[52279114] ; Public Bidding and Leadership Project of Power-China[DJ-HXGG-2023-04] ; Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering[SKLGME-JBGS2401] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001327548700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42711]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Ding-ping |
| 作者单位 | 1.Zhengzhou Univ, Sch Hydraul & Civil Engn, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Huai-sheng,Li, Shao-jun,Xu, Ding-ping,et al. The influence of steep faults at various avoidance distances on the stability of hard rock caverns: Physical model experiments and DEM simulations[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2024,154:16. |
| APA | Xu, Huai-sheng.,Li, Shao-jun.,Xu, Ding-ping.,Chen, Shi-jie.,Feng, Guang-liang.,...&Duan, Shu-qian.(2024).The influence of steep faults at various avoidance distances on the stability of hard rock caverns: Physical model experiments and DEM simulations.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,154,16. |
| MLA | Xu, Huai-sheng,et al."The influence of steep faults at various avoidance distances on the stability of hard rock caverns: Physical model experiments and DEM simulations".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 154(2024):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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