Estimation of in situ stress along deep tunnels buried in complex geological conditions
文献类型：期刊论文
| 作者 | Feng, Xia-Ting ; Zhou, Hui; Zhang, Chuanqing
|
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2012 |
| 卷号 | 52页码:139-162 |
| 关键词 | In situ stress Deep tunnel Integrated analysis Topography Multi-source information |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2012.03.016 |
| 英文摘要 | The headrace tunnels of the Jinping II Hydropower Station are 16.7 km in length and have a maximum depth of 2525 m. Many difficulties have been encountered in estimation of virgin rock stresses along the tunnels. One method was presented including the macroscopic analysis of the region geological structures and topography and the integrated analysis of in situ stresses based on the multi-source information in local tunnel sections. The characteristics of geological structures and tectonic movement were studied to determine the orientations of the tectonic stresses within the Jinping II tunnel project region. The influences of the topography on the distribution of in situ stress were analyzed using numerical methods. The virgin stress regimes were preliminarily estimated based on the geological and topographical analysis and the World Stress Map. Under the guidance of these results, multi-source information was collected regarding rock brittle failures, EDZs, core disking and large-scale deformation of soft rock. Several techniques were adopted, including multivariate regression, numerical simulation, and stereographic projection. An iterative method for the orientations and magnitudes of in situ stresses is presented. The in situ stress regimes, orientations, and magnitudes in tunnel sections of different depths were obtained and verified. They can provide the basic conditions for analysis of the stability of surrounding rock mass during excavation. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000303814500017 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3350]  |
| 专题 | 岩土力学所知识全产出_期刊论文 岩土力学所知识全产出 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Feng, Xia-Ting,Zhou, Hui,Zhang, Chuanqing. Estimation of in situ stress along deep tunnels buried in complex geological conditions[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2012,52:139-162. |
| APA | Feng, Xia-Ting,Zhou, Hui,&Zhang, Chuanqing.(2012).Estimation of in situ stress along deep tunnels buried in complex geological conditions.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,52,139-162. |
| MLA | Feng, Xia-Ting,et al."Estimation of in situ stress along deep tunnels buried in complex geological conditions".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 52(2012):139-162. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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