MINING METHOD WITHOUT COAL PILLAR IN MINING AREA FOR COMPREHENSIVE PREVENTION AND CONTROL OF ROCK BURST AND GAS

The invention relates to a mining method without coal pillars in a mining area for comprehensive prevention and control of rock burst and gas. The coal pillars in the mining area of the former mining area are directly arranged in the working face of the latter mining area, and the coal drift of the previous working face is taken as the air intake drift of the next working face by retaining gob-side entry, so that the mining without coal pillars in the whole mining area is realized and the rock burst is avoided. Pre-splitting, gas pre-pumping and rock burst prevention are carried out by using coal transported up the mountain in the pre-mining area to carry out pre-splitting and drainage of bedding holes; At the same time, the track is arranged in the rock stratum of the coal seam floor, and the gas is extracted in all stages through comb drilling, and it is used as the return air in the post-mining area, which does not affect the mining of the coal pillar in the pre-mining area and can meet the demand of special return air going up the mountain. The invention can realize the comprehensive prevention and control of rock burst and gas, and at the same time can greatly improve the gas prevention and control effect and the coal recovery rate.