Study on the fire prevention and control technology of area cut top relief retaining face "Open Goaf" in Shendong mining area

Cut the top automatic pressure relief into the lane without pillar mining technology is an important innovation of coal mining technology,fire prevention and management of goaf is one of the key factors of this new technology can be applied.Article of Shendong mining area Hala ditch coal mine 12201 roof cutting unloading pressure without coal pillar mining gob fire prevention and management were studied.From the new technology of goaf management analysis,analysis of ventilation system analysis,wind configuration,goaf gas,mined out area "spontaneous combustion" three zones distribution analysis and comprehensive fire prevention and extinguishing technology application,summed up the roof cutting pressure relief without coal pillar mining technology of goaf fire prevention and management experience,for Shendong mining area of shallow buried depth of near distance coal seam in the promotion and application of cutting top pressure relief automatically into the lane without coal pillar mining technology laid the foundation.