NDLI: The Main Factor Controlling the Coal and Gas Outbursts in the Eastern Pingdingshan Mining Area

Content Provider	Springer Nature Link
Author	Wang, Wei Wang, Xiaochao Yan, Jiangwei
Copyright Year	2016
Abstract	By analyzing the gas occurrence, it is found that ground stress plays a leading role in coal and gas outburst in eastern coal mines of Nos. 8, 10 and 12 in Pingdingshan Mining Area where show the most serious outburst hazards. According to the isograms of coal seam depth in F Group, the relationship between the distributions of the fold tectonic stress and the coal and gas outburst was simulated using the ANSYS program. The result shows that the stress concentrates near to the fault and the outcrop of the fault enhances the possibility of gas outburst. The shear stress in the north of the anticline is greater than that in the south. The shear stress direction on the north wing of the anticline is dextral and the coal seam in this area exhibits highest possibility for gas outburst. However, on the surrounding rock, the shear stress direction on the north wing of the anticline is sinistral. The regions with fold tectonic stress ranging from 1.44 to 4.47 MPa correspond to the sites with high risk of gas outburst. Ground stress is the main factor controlling the coal and gas outburst in the three mines. Currently, the distribution of coal and gas outburst in the three mines is in agreement with that of coal shear stress.
Starting Page	1825
Ending Page	1834
Page Count	10
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	34
Issue Number	6
e-ISSN	15731529
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-03-15
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Safety engineering Coal and gas outburst Ground stress Fold Shear stress Structure Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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