Influence of geological structural factors for coal and gas outburst
In order to deepen the understanding of the mechanism and process of coal and gas outburst,the correlation between coal and gas outburst and geological structure is studied in combination with literature review and case analysis.Then the influence of geological structure on outburst control factors is analyzed from three aspects of stress,gas and coal attributes.Finally,the geological tectonic process is considered as the incubation stage of the outburst,and the research direction of outburst mechanism and prevention methods in future is puts forward.The results show that geological structure not only changes the stress and gas environment of coal seam,but also changes the geometric shape of coal seam and physical structure of coal.The influence of coal physical structure change in geological structure area on outburst should be paid enough attention to.Taking the geological structure process into the outburst preparation stage,the geological structure process refers to the process of tectonic movement changing the stress and gas occurrence state of the original coal seam and the physical structure transformation of the coal seam.Based on the geological information of outburst,the formation and characteristics of tectonic coal,and the internal relationship between outburst and tectonic coal,the research directions of coal and gas outburst mechanism and prevention methods are summarized.
coal and gas outburstgeological structurestressgas
NETL
NSTL
万方数据
维普
