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Rockburst Disaster Prediction of Isolated Coal Pillar by Electromagnetic Radiation Based on Frictional Effect
Joint Authors
Tan, Yunliang
Xiao, Fukun
Zou, Jianchao
Zhao, Tongbin
Yin, Yanchun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Based on the understanding that charges generated during coal cracking are due to coal particle friction, a microstructure model was developed by considering four different variation laws of friction coefficient.
Firstly, the frictional energy release of coal sample during uniaxial compressive tests was investigated and discussed.
Then electromagnetic radiation method was used to predict the potential rockburst disaster in isolated coal pillar mining face, Muchengjian Colliery.
The results indicate that the friction coefficient of coal particles decreases linearly with the increase of axial loading force.
In predicting the strain-type rockburst, the high stress state of coal must be closely monitored.
Field monitoring shows that electromagnetic radiation signal became abnormal before the occurrence of rockburst during isolated coal pillar mining.
Furthermore, rockburst tends to occur at the early and ending stages of isolated coal pillar extraction.
Mine-site investigation shows the occurrence zone of rockburst is consistent with the prediction, proving the reliability of the electromagnetic radiation method to predict strain-type rockburst disaster.
American Psychological Association (APA)
Zhao, Tongbin& Yin, Yanchun& Xiao, Fukun& Tan, Yunliang& Zou, Jianchao. 2014. Rockburst Disaster Prediction of Isolated Coal Pillar by Electromagnetic Radiation Based on Frictional Effect. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1051161
Modern Language Association (MLA)
Zhao, Tongbin…[et al.]. Rockburst Disaster Prediction of Isolated Coal Pillar by Electromagnetic Radiation Based on Frictional Effect. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1051161
American Medical Association (AMA)
Zhao, Tongbin& Yin, Yanchun& Xiao, Fukun& Tan, Yunliang& Zou, Jianchao. Rockburst Disaster Prediction of Isolated Coal Pillar by Electromagnetic Radiation Based on Frictional Effect. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1051161
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051161