The Effect of a Tectonic Stress Field on Coal and Gas Outbursts
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-01
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Coal and gas outbursts have always been a serious threat to the safe and efficient mining of coal resources.
Ground stress (especially the tectonic stress) has a notable effect on the occurrence and distribution of outbursts in the field practice.
A numerical model considering the effect of coal gas was established to analyze the outburst danger from the perspective of stress conditions.
To evaluate the outburst tendency, the potential energy of yielded coal mass accumulated during an outburst initiation was studied.
The results showed that the gas pressure and the strength reduction from the adsorbed gas aggravated the coal mass failure and the ground stress altered by tectonics would affect the plastic zone distribution.
To demonstrate the outburst tendency, the ratio of potential energy for the outburst initiation and the energy consumption was used.
Increase of coal gas and tectonic stress could enhance the potential energy accumulation ratio, meaning larger outburst tendency.
The component of potential energy for outburst initiation indicated that the proportion of elastic energy was increased due to tectonic stress.
The elastic energy increase is deduced as the cause for a greater outburst danger in a tectonic area from the perspective of stress conditions.
American Psychological Association (APA)
An, Fenghua& Cheng, Yuanping. 2014. The Effect of a Tectonic Stress Field on Coal and Gas Outbursts. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1051153
Modern Language Association (MLA)
An, Fenghua& Cheng, Yuanping. The Effect of a Tectonic Stress Field on Coal and Gas Outbursts. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1051153
American Medical Association (AMA)
An, Fenghua& Cheng, Yuanping. The Effect of a Tectonic Stress Field on Coal and Gas Outbursts. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1051153
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051153