Abstract:
Based on gas-geology theory, the gas-geology laws and control technology at working face in serious outburst coal seams were analyzed. On the basis of the analysis of coal mine gas-geological laws and outburst laws according to the in-situ data, the work face gas-geological laws was analyzed from mining area and working face gas-geology laws, work face gas occurrence model and outburst dangerous section and other aspects. The working face gas-geology dynamic analysis and management system is used to monitor the gas-geology information dynamic management and the whole process in outburst prevention at working face, and the gradient schema geological map at working face have drawn. Field application shows that the technology of working face gas-geological laws analysis and its control makes the outburst prevention measures more targeted, which can reduce quantity of outburst prevention and improve the working efficiency of working face.