Numerical back analysis method of three-dimensional in situ stress fields considering complex surface topography and variable collinearity
文献类型：期刊论文
| 作者 | Xu, Huaisheng1,2; Li, Shaojun1; Xu, Dingping1; Huang, Xiang1,2; Zheng, Minzong1; He, Jianhua3; Zhao, Kai4 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 170页码:12 |
| 关键词 | In situ stress field Numerical back analysis Complex geological environment Surface topography Variable collinearity Stepwise regression |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2023.105474 |
| 英文摘要 | Numerical back analysis based on incomplete in situ stress measurements is widely used to estimate the threedimensional (3D) in situ stress fields of large deep underground caverns. However, the variable collinearity caused by complex geological environments has rarely been considered. This paper proposes a numerical back analysis method for 3D in situ stress fields based on stepwise regression (BSSR). In BSSR, the collinearity between independent variables is associated with the surface topography, and insignificant variables caused by variable collinearity are eliminated through stepwise regression. BSSR was applied to the underground powerhouse of a hydropower station for validation, and the results showed that it can reliably estimate the 3D in situ stress field despite the complex geological environments. Multidimensional mathematical models of in situ stress fields were established with the improved predictive ability and clear physical meaning, which can quantify the contributions of six geological actions and three stress sources. The findings of this study can help with understanding the formation mechanism of in situ stress fields for large, deep underground caverns in complex geological environments and provide a useful reference for optimizing excavation schemes and support designs. |
| 资助项目 | National Natural Science Foundation of China[51879261] ; National Natural Science Foundation of China[51979268] ; Innovation Group Project of the Natural Science Foundation of Hubei Province[ZRQT2020000114] |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001034649500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/38988]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Shaojun; Xu, Dingping |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.PowerChina Chengdu Engn Corp Ltd, Chengdu 610072, Peoples R China 4.Huadian Jinshajiang Upstream Hydropower Dev Corp L, Ganzi Tibetan Autonomous 627150, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Huaisheng,Li, Shaojun,Xu, Dingping,et al. Numerical back analysis method of three-dimensional in situ stress fields considering complex surface topography and variable collinearity[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2023,170:12. |
| APA | Xu, Huaisheng.,Li, Shaojun.,Xu, Dingping.,Huang, Xiang.,Zheng, Minzong.,...&Zhao, Kai.(2023).Numerical back analysis method of three-dimensional in situ stress fields considering complex surface topography and variable collinearity.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,170,12. |
| MLA | Xu, Huaisheng,et al."Numerical back analysis method of three-dimensional in situ stress fields considering complex surface topography and variable collinearity".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 170(2023):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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