Study on Gas Geological Law and Gas Prevention and Control Measures of Songshuzhen Mine

The gas geological theory and method were applied to analyze the geological factors of Songshuzhen Mine affected to the coal and gas outburst and the gas emission features of the coal mining face.The results showed that the geological structure and coal depth was the major factors to influence gas deposit;coal and g as outburst was controlled mainly by geological structure, in geological structure zone, gas outburst occurred because of the stress concentration, damaged coal struct ure as well as large gas content and high gas pressure;gas emission quantity in goaf accounted for about 46.62% of the quantity in working face. Based on the circumst ances, the optimized ventilation system, improved gas monitoring and prediction, enhanced gas drainage and other comprehensive gas prevention and control measure s were provided and could provide the technical protections to the safety production of Songshuzhen Mine.