气候变化领域集成服务门户(CCPortal): Experimental investigation on synergetic prediction of rockburst using the dominant-frequency entropy of acoustic emission

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DOI	10.1007/s11069-021-04822-6
	Experimental investigation on synergetic prediction of rockburst using the dominant-frequency entropy of acoustic emission
	Wang C.; Cao C.; Liu Y.; Li C.; Li G.; Lu H.
发表日期	2021
ISSN	0921030X
起始页码	3253
结束页码	3270
卷号	108 期号:3
英文摘要	Rockburst is one of the critical safety concerns for underground engineering. The acoustic emission (AE) activity that occurs during rockburst is one of its notable characteristics. Because rockburst is induced by complexity factors, the prediction of rockburst has been investigated widely, yet few methods have been applied in depth. In this study, dynamic process of rockburst was investigated, and the information entropy of the dominant frequency was determined to be an indicator of rockburst. A series of true triaxial tests were conducted, and AE signals associated with the evolution of rock failure were collected. The AE data were treated with the fast Fourier transform to acquire the dominant frequency. Then, the information entropy of the dominant frequency was obtained, and a significant drop of the entropy value right after it reached the peak was observed. Finally, based on the comprehensive analysis of AE energy, dominant-frequency entropy, and other precursory information of rock failure, a multiparameter synergetic method of predicting rockburst is proposed. This research has important theoretical significance for improving the prediction accuracy of rockburst. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Acoustic emission Dominant frequency Entropy Rockburst Synergetic prediction
英文关键词	Indicator indicator
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206636
作者单位	School of Energy and Mining Engineering, China University of Mining and Technology Beijing, Ding 11, Xueyuan Road, Haidian District, Beijing, 100083, China; Center for Underground Construction and Tunnelling, Colorado School of Mines, Golden, CO 80401, United States
推荐引用方式 GB/T 7714	Wang C.,Cao C.,Liu Y.,et al. Experimental investigation on synergetic prediction of rockburst using the dominant-frequency entropy of acoustic emission[J],2021,108(3).
APA	Wang C.,Cao C.,Liu Y.,Li C.,Li G.,&Lu H..(2021).Experimental investigation on synergetic prediction of rockburst using the dominant-frequency entropy of acoustic emission.Natural Hazards,108(3).
MLA	Wang C.,et al."Experimental investigation on synergetic prediction of rockburst using the dominant-frequency entropy of acoustic emission".Natural Hazards 108.3(2021).