热门
In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station
文献类型：期刊论文
| 作者 | Feng, Xia-Ting1 ; Chen, Bingrui1; Zhang, Chuanqing1; Zhou, Hui1; Li, Shaojun1; Li, Zhanhai2
|
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2012 |
| 卷号 | 137页码:85-96 |
| 关键词 | In situ monitoring Deeply buried tunnel Rockburst Nucleation and evolution Jinping II hydropower station |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2012.03.010 |
| 英文摘要 | Rockbursts occurred frequently during the excavation of several parallel tunnels in the Jinping II hydropower station under a maximum overburden of 2525 m over an average length of 17.5 km. In order to investigate the nucleation and evolution mechanism of rockbursts, a comprehensive monitoring campaign consisting of a digital borehole camera, cross-hole acoustic apparatus, and sliding micrometer was undertaken for in situ measurements in two specially excavated test tunnels B and F. This paper presents the comprehensive monitoring methods applied, and results of numerical analysis applied to a typical rockburst that fortuitously occurred during the testing period. Precursory characteristics preceding rockbursts are: (a) abundant crack initiation, propagation and coalescence, (b) deformation of surrounding rock mass involving an accelerated deformation stage, quiescence stage and reaccelerated deformation stage, and (c) decrease of the characteristic elastic wave velocity of the rock mass. The nucleation and evolution of rockbursts discussed consist of four stages: a) stress adjustment, b) energy accumulation, c) crack initiation, propagation and coalescence. and d) fractured rock collapse and ejection. The results provide a direct case history to assist the prediction and support of rockburst disasters, and contribute to field excavation of deeply buried tunnels. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000304745500009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3351]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Northeastern Univ, Sch Resources & Civil Engn |
| 推荐引用方式 GB/T 7714 | Feng, Xia-Ting,Chen, Bingrui,Zhang, Chuanqing,et al. In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station[J]. ENGINEERING GEOLOGY,2012,137:85-96. |
| APA | Feng, Xia-Ting,Chen, Bingrui,Zhang, Chuanqing,Zhou, Hui,Li, Shaojun,&Li, Zhanhai.(2012).In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station.ENGINEERING GEOLOGY,137,85-96. |
| MLA | Feng, Xia-Ting,et al."In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station".ENGINEERING GEOLOGY 137(2012):85-96. |
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。