Abstract:
With the increasing of coal mine safety technology investment and strengthening mine safety management, coal mine accidents have been well controlled, serious accidents have been basically eradicated, but coal and gas outburst accidents still present multiple state in recent years, which has not been effectively curbed. The features of similar multiple accidents are obtained by technical analysis of coal mine gas outburst accidents from 2012 to 2014, and the typical accidents were collected and analyzed specially. Thus, common technical reasons of recent similar multiple coal and gas outburst accidents were summarized, and the measures to effectively prevent accidents were carried out.