Frequency fractal feature of microseismic events in the process of immediate rockburst in deep tunnel

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 会议论文

	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
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.