Study On The Effect Of Seam Geological Structure To Coal And Gas Outburst In Sihe Coal Mine

According to gas geological conditions and mining methods of Sihe mine, using the ways of field investigation,laboratory test,theoretical analysis and statistical induction have researched the mine gas distribution,gas emission law and control action of geological structure to coal-gas outburst. Meanwhile collected and finished seam gas pressure, gas content and so on of Sihe mine. Analyzed the occurrence characteristics of mine gas and dtudied the mine gas distribution and gas emission law.Using the Tectonophysical Method has dtudied characteristics of geological structure,tectonic stress field of Sihe mine and explored the relationship between geological structure and coal-gas outburst. Meanwhile studied the tectonophysical environment of coal and gas outburst of Sihe mine,analyzed the control action of geological structure of Sihe mine to gas occurrence, the origin of construct coal and ground stress distribution, further studied the relationship between geological structure and coal-gas outburst.Applying grey correlation method to analysis the effects and determine the main control factors of coal-gas outburst of Sihe mine.According to the main control factors of coal-gas outburst of Sihe mine to choose the predicted indexes of geological structure when coal and gas outbursting.Applying extension cluster we can do a comprehensive analysis on these indexes and then predict the risk of coal-gas outburst of geological structure units.For example X1301 working face of west riding of Sihe mine,we analyzed the relationship between geological structure and coal-gas outburst.And according to the analyzed results,we made a the risk prediction of coal-gas outburst on thin working face.