Inversion of the 3D in situ stress field in a complex valley area around the underground cavern group of the Yingliangbao Hydropower Station
文献类型：期刊论文
| 作者 | Zheng,Hong3; Yan,Shengcun2; Chen,Tao2; Jiang,Quan3; Xiong,Xiantao1; Li,Meng2; Liu,Chang3 |
| 刊名 | IOP Conference Series: Earth and Environmental Science
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 861期号:2 |
| ISSN号 | 1755-1307 |
| DOI | 10.1088/1755-1315/861/2/022004 |
| 英文摘要 | Abstract The inversion of three-dimensional in situ stress fields in complex river valleys is of great significance for evaluating the excavation stability of deep underground caverns. Based on known in situ stress measurements, it is a major method for obtaining the geostress of the engineering area through the inversion geostress of the whole area with the application of geo-mathematical mechanics. However, the inversion results are often limited by the geological structure and heterogeneous alterated rock, as well as the measurement data reliability. A three-dimensional nonlinear neural network inversion was combined with a simulation of stratigraphic denudation by stages, tectonic compression, and alteration degree in the fault structure. The model was then applied to an underground cavern group of the Yingliangbao Hydropower Station. Comparative analysis showed that the inversion results were in reasonable accordance with the measured in situ stress values. Moreover, the reliability of the three-dimensional in situ stress field obtained using this method was further verified from the stress-induced failure during the cavern excavation. This technique is helpful for optimizing the design of subsequent excavation and reduces the potential instability of surrounding rock during a layered excavation. |
| 语种 | 英语 |
| WOS记录号 | IOP:EES_861_2_022004 |
| 出版者 | IOP Publishing |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28406]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.PowerChina Chengdu Engineering Co., Ltd., Chengdu, Sichuan 610072, China 2.Sichuan Huaneng Luding Hydropower Co. Ltd., Chengdu, Sichuan 610072, China 3.State Key Laboratory for Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China, Tel: +086-87198805 |
| 推荐引用方式 GB/T 7714 | Zheng,Hong,Yan,Shengcun,Chen,Tao,et al. Inversion of the 3D in situ stress field in a complex valley area around the underground cavern group of the Yingliangbao Hydropower Station[J]. IOP Conference Series: Earth and Environmental Science,2021,861(2). |
| APA | Zheng,Hong.,Yan,Shengcun.,Chen,Tao.,Jiang,Quan.,Xiong,Xiantao.,...&Liu,Chang.(2021).Inversion of the 3D in situ stress field in a complex valley area around the underground cavern group of the Yingliangbao Hydropower Station.IOP Conference Series: Earth and Environmental Science,861(2). |
| MLA | Zheng,Hong,et al."Inversion of the 3D in situ stress field in a complex valley area around the underground cavern group of the Yingliangbao Hydropower Station".IOP Conference Series: Earth and Environmental Science 861.2(2021). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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