Risk analysis of progressive cracking and failure of hard rock around deep underground caverns with high sidewall
文献类型：期刊论文
| 作者 | Zhou,Chi4; Han,Yi3; Liu,Guo-Feng2,4; Mu,Hao-Qi4; Tie,Ji-Kang4; Feng,Guang-Liang1 |
| 刊名 | IOP Conference Series: Earth and Environmental Science
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 861期号:4 |
| 关键词 | Large cavern Progressive cracking Risk consequences Risk analysis Hard rock |
| ISSN号 | 1755-1307 |
| DOI | 10.1088/1755-1315/861/4/042019 |
| 英文摘要 | Abstract The progressive cracking of hard rock is more significant under the strong unloading effect of excavation of deep buried large caverns, which often leads to the destruction of surrounding rock, the sharp increase of deformation, support damage and other engineering disasters. Relying on a domestic giant underground hydropower station that faces serious aging crack problems of surrounding rock during the excavation period, the risk analysis methods on the progressive cracking and failure of hard rock around deep underground caverns with high sidewall were presented. Firstly, the formation mechanism of cracking and failure risk of hard rock was revealed from the perspective of risk, based on the analysis of the influencing factors of the cracking behaviour. Secondly, the risk consequences and losses caused by progressive cracking of hard rock were summarized through typical historical observation cases. On this basis, the identification and estimation process of progressive cracking and failure risk of hard rock was put forward, according to the characteristics of complex excavation process of the large caverns and the development characteristics of progressive cracking of hard rock. Thirdly, based on the existing risk assessment guidelines for underground engineering, the risk classification principle of progressive cracking of hard rock for large underground cavern was preliminary proposed, including risk occurrence, risk loss and risk grading, and a set of methods for estimating the risk of progressive cracking and failure of hard rock in the underground powerhouse from Baihetan Hydropower Station project was applied to verify the applicability of the method proposed in this paper. This study has important guiding significance for risk assessment of similar disasters and support optimization design of large and deep underground engineering in hard rock. |
| 语种 | 英语 |
| WOS记录号 | IOP:EES_861_4_042019 |
| 出版者 | IOP Publishing |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28436]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.Shanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710064, China 3.CCCC Tunnel Engineering Company Limited, Beijing, 100088, China 4.School of Highway, Chang’an University, Xi’an 710064, China |
| 推荐引用方式 GB/T 7714 | Zhou,Chi,Han,Yi,Liu,Guo-Feng,et al. Risk analysis of progressive cracking and failure of hard rock around deep underground caverns with high sidewall[J]. IOP Conference Series: Earth and Environmental Science,2021,861(4). |
| APA | Zhou,Chi,Han,Yi,Liu,Guo-Feng,Mu,Hao-Qi,Tie,Ji-Kang,&Feng,Guang-Liang.(2021).Risk analysis of progressive cracking and failure of hard rock around deep underground caverns with high sidewall.IOP Conference Series: Earth and Environmental Science,861(4). |
| MLA | Zhou,Chi,et al."Risk analysis of progressive cracking and failure of hard rock around deep underground caverns with high sidewall".IOP Conference Series: Earth and Environmental Science 861.4(2021). |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。