NDLI: Rock Burst Monitoring by Integrated Microseismic and Electromagnetic Radiation Methods

Content Provider	Springer Nature Link
Author	Li, Xuelong Wang, Enyuan Li, Zhonghui Liu, Zhentang Song, Dazhao Qiu, Liming
Copyright Year	2016
Abstract	For this study, microseismic (MS) and electromagnetic radiation (EMR) monitoring systems were installed in a coal mine to monitor rock bursts. The MS system monitors coal or rock mass ruptures in the whole mine, whereas the EMR equipment monitors the coal or rock stress in a small area. By analysing the MS energy, number of MS events, and EMR intensity with respect to rock bursts, it has been shown that the energy and number of MS events present a “quiet period” 1–3 days before the rock burst. The data also show that the EMR intensity reaches a peak before the rock burst and this EMR intensity peak generally corresponds to the MS “quiet period”. There is a positive correlation between stress and EMR intensity. Buckling failure of coal or rock depends on the rheological properties and occurs after the peak stress in the high-stress concentration areas in deep mines. The MS “quiet period” before the rock burst is caused by the heterogeneity of the coal and rock structures, the transfer of high stress into internal areas, locked patches, and self-organized criticality near the stress peak. This study increases our understanding of coal and rock instability in deep mines. Combining MS and EMR to monitor rock burst could improve prediction accuracy.
Starting Page	4393
Ending Page	4406
Page Count	14
File Format	PDF
ISSN	07232632
Journal	Rock Mechanics and Rock Engineering
Volume Number	49
Issue Number	11
e-ISSN	1434453X
Language	English
Publisher	Springer Vienna
Publisher Date	2016-07-01
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rock burst Coal mine Microseismic Electromagnetic radiation Integrated monitoring Geophysics/Geodesy Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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