Research and application of bumping prevention and control technology in Nantun Mine

With the analysis on the status, features and influence factors of the bumping phenomenon occurred in Nantun Mine of Yanzhou Coal Mining Group and in combined with the mine actual production, the paper provided and set up the bumping danger prediction methods suitable to the mine conditions. The prediction methods included the certificate of coal and rock mass bumping in potential, seam pressure and deformation measurements, numerical calculation, comprehensive index calculation, coal dust borehole, electric measurement and radiation monitoring and measurement. The danger releasing methods included the in-seam water injection, pressure released blasting and pressure released borehole. The result inspection methods of the danger releasing measures were electric magnetic radiation method and drilling cuttings method. Therefore, all above methods established the safety mining system with the bumping prevention and control suitable to Nantun Mine.