Microseismic sequences associated with rockbursts in the tunnels of the Jinping II hydropower station
文献类型：期刊论文
| 作者 | Chen, Bing-Rui; Feng, Guang-Liang; Feng, Xia-Ting ; Xiao, Ya-Xun
|
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 80页码:89-100 |
| 关键词 | Rock mechanics Tunnel Rockburst Microseismic sequence Jinping II hydropower station |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2015.06.011 |
| 英文摘要 | Microseismic (MS) monitoring techniques have been used to warn of rockbursts in tunnels to reduce rockburst risks and ensure safe construction with different degrees of success. In order to reveal the characteristics of MS activity in tunnel rockburst development processes, and lay a foundation for tunnel rockburst warning, MS sequences accompanying rockburst development processes in tunnels are studied in this paper. The study is based on tunnels (with a maximum burial depth of 2525 m) of the Jinping II hydropower station, China. Firstly, two MS parameters are put forward to express the comprehensive microseismicity and intensity of the MS events in the rockburst development process. Secondly, the laws governing the evolution of the two parameters are analyzed based on 44 moderate and intense immediate rockburst cases in the tunnels of Jinping II. Then, the MS sequences associated with immediate rockburst development processes in tunnels are divided into two types: fore-main and swarm shock MS sequences. The characteristics of the two types of MS sequences are different with each other. Finally, based on a theoretical analysis and verification using engineering examples, the mechanism of formation of the two MS sequences is analyzed. The fore-main MS sequences are mainly controlled by excavation unloading in the tunnel. The swarm type is mainly controlled by the combined effects of excavation unloading and the presence of structure planes. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000365587900010 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3786]  |
| 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 | Chen, Bing-Rui,Feng, Guang-Liang,Feng, Xia-Ting,et al. Microseismic sequences associated with rockbursts in the tunnels of the Jinping II hydropower station[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2015,80:89-100. |
| APA | Chen, Bing-Rui,Feng, Guang-Liang,Feng, Xia-Ting,&Xiao, Ya-Xun.(2015).Microseismic sequences associated with rockbursts in the tunnels of the Jinping II hydropower station.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,80,89-100. |
| MLA | Chen, Bing-Rui,et al."Microseismic sequences associated with rockbursts in the tunnels of the Jinping II hydropower station".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 80(2015):89-100. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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