Hydraulic Fracturing Of Deformation Reserved Of Rapid Rock Cross-cut Coal Uncovering Technique

Coal and gas outburst is one of the major disasters and accidents in coal mine, and it is a serious threat to the safety of coal production. Our country is world coal and gas outburst of the countries most affected by the disaster, most complex geological conditions, coal gas, coal and gas outburst dangerous serious. In all the outburst accidents, Cross Cut prominent highlight particularly serious.This article through to Cross Cut prominent condition analysis, comparative analysis with Cross Cut prominent coal roadway heading face the stress state uncovering coal area, according to the basic principle of outburst prevention measures, and puts forward uncovering coal area on the verge of hydraulic fracturing technology reserve deformation, and compared with the traditional hydraulic fracturing hydraulic fracturing distinction, draw the feasibility of the hydraulic fracturing. The pore structure and in coal classification of discussion and coal body structure, the influence of the permeability of coal and coal for high-pressure water in using the movement process of the bored simulation software RFPA2D analysis hydraulic fracturing process, and obligate deformation hydraulic fracturing pressure, pressure hole sphere of influence, fracturing break when coal path, fracturing the stress variation in the coal and the permeability of coal body changes after fracturing are analyzed, based on the simulation results for actual hydraulic fracturing select rational parameters. according to the simulation results, had a test of hydraulic fracturing at the point of uncovering coal, so the hydraulic fracturing of deformation reserved of rapid rock cross-cut coal uncovering technique was in-depth researched, In this outburst prevention measure, Safety and fast opened outburst seam. In this mine other opened seam and other outburst mine has been a good of popularization and application, where were obtained good effect.Study of safe, efficient, rapid rock cross-cut coal uncovering technique, for ensuring china's energy supply, to promote the economic development of the mining area, to ensure the safety of state property and workers, social stability is of great significance.