Abstract: Taking the 8800 working face of a mine as the research background,in order to solve the problem that the geological structure of the coal seam is complex and can not be continuously recovered,the concentration of CO increases at the corner of the return air during the stoping period,and the temperature of the inlet and outlet Lane rises,which is prone to the hidden danger of spontaneous combustion of coal.After practical application,it is found that the concentration of goaf temperature,CO and other index gases show a continuous downward trend and remain stable for a long time.Therefore,this method can effectively inhibit the spontaneous combustion trend of the goaf with narrow coal pillars.

Key words: Coal spontaneous combustion,Fire prevention technology,Narrow coal pillar,Driving roadway along gob