Analysis of mechanical behavior of soft rocks and stability control in deep tunnels
文献类型：期刊论文
| 作者 | Zhou, Hui2; Zhang, Chuanqing2; Li, Zhen2; Hu, Dawei2; Hou, Jing1 |
| 刊名 | Journal of Rock Mechanics and Geotechnical Engineering
 |
| 出版日期 | 2014 |
| 卷号 | 6期号:3页码:219 |
| 关键词 | Deep tunnel Soft rock Water-weakening effect Large deformation Stability Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
| ISSN号 | 1674-7755 |
| 英文摘要 | Due to the weakness in mechanical properties of chlorite schist and the high in situ stress in Jinping II hydropower station, the rock mass surrounding the diversion tunnels located in chlorite schist was observed with extremely large deformations. This may significantly increase the risk of tunnel instability during excavation. In order to assess the stability of the diversion tunnels laboratory tests were carried out in association with the petrophysical properties, mechanical behaviors and water-weakening properties of chlorite schist. The continuous deformation of surrounding rock mass, the destruction of the support structure and a large-scale collapse induced by the weak chlorite schist and high in situ stress were analyzed. The distributions of compressive deformation in the excavation zone with large deformations were also studied. In this regard, two reinforcement schemes for the excavation of diversion tunnel bottom section were proposed accordingly. This study could offer theoretical basis for deep tunnel construction in similar geological conditions. |
| 资助项目 | [National Natural Science Foundation of China] ; [National Basic Research Program of China] |
| 语种 | 英语 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/26262]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.HydroChina Huadong Engn Corp, Hangzhou 310014, Zhejiang, Peoples R China 2.中国科学院 |
| 推荐引用方式 GB/T 7714 | Zhou, Hui,Zhang, Chuanqing,Li, Zhen,et al. Analysis of mechanical behavior of soft rocks and stability control in deep tunnels[J]. Journal of Rock Mechanics and Geotechnical Engineering,2014,6(3):219. |
| APA | Zhou, Hui,Zhang, Chuanqing,Li, Zhen,Hu, Dawei,&Hou, Jing.(2014).Analysis of mechanical behavior of soft rocks and stability control in deep tunnels.Journal of Rock Mechanics and Geotechnical Engineering,6(3),219. |
| MLA | Zhou, Hui,et al."Analysis of mechanical behavior of soft rocks and stability control in deep tunnels".Journal of Rock Mechanics and Geotechnical Engineering 6.3(2014):219. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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