NDLI: Control of the Tectonic Stress Field on Coal and Gas Outburst

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Control of the Tectonic Stress Field on Coal and Gas Outburst

Content Provider	Semantic Scholar
Copyright Year	2018
Abstract	The comprehensive hypothesis of coal and gas outburst (CAGO), which considers that the in situ stress, gas pressure and content, and physical-mechanical properties of coal are the key factors in determining the occurrence of CAGO, is accepted by international scholars. Tectonic stress is the horizontal in situ stress that plays a leading role in the control of CAGO. To study the control of tectonic stress field on CAGO, the Pingdingshan eastern mining area is taken as a research area, and the evolution law of the regional tectonic stress field and the distribution characteristics of the modern tectonic stress field are analyzed. Combined with the characteristics of CAGO in this area, the effects of the tectonic stress field on the geological structure distribution, gas occurrence and tectonic coal development are discussed, and the effects of the tectonic stress field on CAGO are further studied. The results show that the evolution of the tectonic stress field forms the geological structure pattern of the Pingdingshan eastern mining area, leading to the differences in the distribution of gas occurrence in different areas of the mine area and resulting in a large area of tectonic coal development. The modern tectonic stress field exacerbates the pulverization and mylonitization of tectonic coal and influences the gas pressure and content through the coal reservoir permeability. The modern tectonic stress is the direct cause of CAGO, increasing the possibility and risk of CAGO.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://epa.oszk.hu/02500/02583/00056/pdf/EPA02583_applied_ecology_2018_06_74137433.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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