Analysis on coal and gas outburst features and control factors in Xin'an mine

In order to know the properties and control factors of coal and gas outburst,and ascertain the gas outburst prevention of mines,gas outburst in Xin'an minefield is of the following properties: diminutive volumes,be foreboding and induced by operation way before outburst,high gas volumes and pressures around outburst location,and be regular in dig operation seam and in variational area of coal seam are obtained,by statistic analysis on gas dynamic phenomenon of four mines in Yima mining corporation,Xin'an mine.Embedding depth,gas accumulation,geological conformation,variance of coal seam thickness,deformed soft coals and operation technics,which are the main factors to control coal and gas outburst of Xin'an coalfield are given detailed summrized.It provides theoretical guidance to prevent and control the coal and gas outburst for mines in the mining area.