Effects of structural planes on the microseismicity associated with rockburst development processes in deep tunnels of the Jinping-II Hydropower Station, China
文献类型：期刊论文
| 作者 | Feng, Guang-Liang; Feng, Xia-Ting ; Chen, Bing-Rui; Xiao, Ya-Xun; Zhao, Zhou-Neng
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| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 84期号:-页码:273-280 |
| 关键词 | Rock mechanics Rockburst Microseismicity Structural planes Jinping-II Hydropower Station |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2018.11.008 |
| 英文摘要 | Rockbursts cause serious casualties and damage in deep, hard rock tunnels. Structural planes can play an important role in the rockburst development process. In this paper, effects of structural planes on the micro seismicity in rockburst development processes are summarized and studied in deep tunnels of the Jinping-II Hydropower Station, China. The study is based on an analysis of 44 moderate and intense rockbursts which occurred during a period of more than a year of microseismic (MS) monitoring and relates to 11.6 km of tunneling. The results show that most of the cases are affected by structural planes regardless of the rockburst's moderate or intense character. The structural planes in the areas where rockbursts occur are mostly stiff ones and grade In or IV ones. In rockbursts development processes affected by structural planes, the MS energy proportion of big MS events, i.e. whose logarithm of MS energy (measured in Joules) is larger than 3.83, is comparatively lower. Structural planes change the way microseismicity evolves. Right from the beginning in the rockburst development and just before the rockburst affected by structural planes, there were some big MS events occurring. And structural planes cause rockbursts to occur more likely. Threshold values of the microseismicity (number of MS events and MS energy) for rockburst occurrence are relatively lower. In addition, the micro seismicity in rockburst development processes with different intensities and with/without structural planes shows discreteness and the microseismicity is greater in more intense rockbursts. |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000457506700024 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15059]  |
| 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.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Liaoning, Peoples R China; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 3.Southwest Univ Sci & Technol, Sch Environm Engn & Resources, Mianyang 621010, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Guang-Liang,Feng, Xia-Ting,Chen, Bing-Rui,et al. Effects of structural planes on the microseismicity associated with rockburst development processes in deep tunnels of the Jinping-II Hydropower Station, China[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2019,84(-):273-280. |
| APA | Feng, Guang-Liang,Feng, Xia-Ting,Chen, Bing-Rui,Xiao, Ya-Xun,&Zhao, Zhou-Neng.(2019).Effects of structural planes on the microseismicity associated with rockburst development processes in deep tunnels of the Jinping-II Hydropower Station, China.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,84(-),273-280. |
| MLA | Feng, Guang-Liang,et al."Effects of structural planes on the microseismicity associated with rockburst development processes in deep tunnels of the Jinping-II Hydropower Station, China".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 84.-(2019):273-280. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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