Integrated approach of predicting rock stability in high mountain valley underground caverns
文献类型：期刊论文
| 作者 | Tan, Fuyuan1,2; Guo, Haosen1; Pan, Pengzhi2,4; Wang, Zhaofeng2,4; Liu, Xufeng2,4; Zhou, Yangyi3 |
| 刊名 | UNDERGROUND SPACE
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 19页码:317-341 |
| 关键词 | High mountain valley Underground cavern Stability of surrounding rock On-site monitoring Stress-strength ratio Numerical simulation |
| ISSN号 | 2096-2754 |
| DOI | 10.1016/j.undsp.2024.04.005 |
| 英文摘要 | High mountain valleys are characterized by the development of intricate ground stress fields due to geological processes such as tectonic stress, river erosion, and rock weathering. These processes introduce considerable stability concerns in the surrounding rock formations for underground engineering projects in these regions, highlighting the imperative need for rigorous stability assessments during the design phase to ensure construction safety. This paper introduces an innovative approach for the pre-evaluation of the stability of surrounding rocks in underground caverns situated within high mountain valleys. The methodology comprises several pivotal steps. Initially, we conduct inverse calculations of the ground stress field in complex geological terrains, combining field monitoring and numerical simulations. Subsequently, we ascertain stress-strength ratios of the surrounding rocks using various rock strength criteria. To assess the stability characteristics of the surrounding rocks in the 1# spillway cave within our project area, we employ numerical simulations to compute stress-strength ratios based on different rock strength criteria. Furthermore, we undertake a comparative analysis, utilizing data from the 5# Underground Laboratory (Lab 5) of Jinping II Hydropower Station, aligning the chosen rock strength criterion with the damage characteristics of Lab 50s surrounding rocks. This analysis serves as the cornerstone for evaluating other mechanical responses of the surrounding rocks, thereby validating the pre-evaluation methodology. Our pre-evaluation method takes into account the intricate geological evolution processes specific to high mountain valleys. It also considers the influence of the initial geostress field within the geological range of underground caverns. This comprehensive approach provides a robust foundation for the analysis and assessment of the stability of surrounding rocks, especially in high mountain valley areas, during the design phase of underground engineering projects. The insights derived from this analysis hold substantial practical significance for the effective guidance of such projects. |
| 资助项目 | National Natural Science Foundation of China[52339001] ; National Natural Science Foundation of China[52209149] ; Natural Science Foundation of Jiangxi Pro-vince[20232BAB204092] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001294763900001 |
| 出版者 | KEAI PUBLISHING LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42292]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Guo, Haosen; Pan, Pengzhi; Wang, Zhaofeng |
| 作者单位 | 1.East China Jiaotong Univ, Nanchang 467200, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Northeastern Univ, Key Lab Liaoning Prov Deep Engn & Intelligent Tec, Shenyang 110819, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Fuyuan,Guo, Haosen,Pan, Pengzhi,et al. Integrated approach of predicting rock stability in high mountain valley underground caverns[J]. UNDERGROUND SPACE,2024,19:317-341. |
| APA | Tan, Fuyuan,Guo, Haosen,Pan, Pengzhi,Wang, Zhaofeng,Liu, Xufeng,&Zhou, Yangyi.(2024).Integrated approach of predicting rock stability in high mountain valley underground caverns.UNDERGROUND SPACE,19,317-341. |
| MLA | Tan, Fuyuan,et al."Integrated approach of predicting rock stability in high mountain valley underground caverns".UNDERGROUND SPACE 19(2024):317-341. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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