Gas Geology Law And Coal-gas Outburst Prediction Of Xinxing Mine In Qitaihe

This paper aims at studying the 65 and 68 coal seams as the research object in Xinxing mine Qitaihe mining area. Using geological evolution and tectonic gradual control theory, minfield characteristics and tectonic evolution to the control structure of the gas occurrence is analyzed. Qitaihe mining area belongs to the Siberian regional tectonic and North China plate suture zone between the second fold line Jilin and Heilongjiang. Be auspicious black drape department with the north China plate from north to south, forming extrusion action again to exhibition cloth nearly EW extrusion tectonic. Form the cloth to show nearly EW ex1rtjflg tectonic, controls, including Qitaihe coal mining area of Heilongjiang eastern extrusion of the shear structure, tectonic coal distribution, mainly for the nearly EW trending . EW-oriented compression to the structure to control the occurrence of high gas and coal gas outburst in favor of the occurrence of dynamic phenomena;SN-trending structural and NE, NNW extension to be constructed, rifting activity conducive to massive release of gas. With geological data and field measurement of gas content and a large number of gas emission data of Xinxing mine, using linear regression method on the occurrence of geological factors on the impact of gas qualitative and quantitative analysis.After comprehensive analysis of geological structures, tectonic coal development relevant factors, with reference to"the control of the coal and gas outburst", comprehensive consideration provisions of mine gas geology rule, to emerging field 65, 68 seam prominent regional risk is forecasted. As the mine has been outstanding on the previous history of 65 and 68coal seams, forecast the depth of penetration more than the beginning of the range of 20m and the following highlights the danger zone.