Frequency fractal feature of microseismic events in the process of immediate rockburst in deep tunnel | |
Xiao, Y. X.1; Feng, X. T.1; Yu, Y.2; Chen, B. R.1; Feng, G. L.1 | |
2013 | |
会议日期 | JUN 18-20, 2013 |
会议地点 | Tongji Univ, Shanghai, PEOPLES R CHINA |
页码 | 777-780 |
英文摘要 | In order to research microseismic (MS) activity rules in the process of rockburst in deep tunnel, the immediate rockburst induced by TBM and D&B excavation are measured in the field. The attention law of microseismic waveform shows that frequency is a better parameter to reflect the real feature of microseismic source. Then, a calculated method of the main frequency of MS event and its fractal dimension is introduced. The study on the evolution of fractal dimension of the main frequency in the process of immediate rockbursts shows that the distribution of main frequency of MS events is a fractal and has statistical self-similarity. Immediate rockburst induced by different excavation method has different precursory. The lowest fractal dimension of main frequency occurred on the day before major rockburst in the TBM tunnel. But in the D&B tunnel, the fractal dimension gets lowest on the right day of major rockburst. These results can provide references for warning and mechanism study of rockburst in deep tunnel. |
源文献作者 | Feng, XT ; Hudson, JA ; Tan, F |
会议录 | ROCK CHARACTERISATION, MODELLING AND ENGINEERING DESIGN METHODS
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会议录出版者 | CRC PRESS-TAYLOR & FRANCIS GROUP |
会议录出版地 | BOCA RATON |
语种 | 英语 |
WOS研究方向 | Engineering |
WOS记录号 | WOS:000342685900134 |
内容类型 | 会议论文 |
源URL | [http://119.78.100.198/handle/2S6PX9GI/4769] ![]() |
专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Northeastern Univ, Sch Res & Civil Engn |
推荐引用方式 GB/T 7714 | Xiao, Y. X.,Feng, X. T.,Yu, Y.,et al. Frequency fractal feature of microseismic events in the process of immediate rockburst in deep tunnel[C]. 见:. Tongji Univ, Shanghai, PEOPLES R CHINA. JUN 18-20, 2013. |
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