杨家杖子矿务局岭前矿自1973年以来,在某些工作面爆破后,曾发生过6次气体爆燃事故,其中1973年1次,1974年4次,1981年1次,使多人程度不同地被灼伤。这些事故发生的地点都是在把道上打联斗巷处(如附图a),或在盲天井端部两边开幅穿、联络道(如附图b)处。根据现场调查分析, Lingqian Mine of Yangjiazhangzi Mine Since the explosion of some work surfaces since 1973, there have been 6 gas explosion incidents, including one in 1973, four in 1974 and one in 1981, resulting in a large number of people Different degrees of burns. These incidents occurred at the junction of Lanes (as shown in Figure a) or at the ends of the blinds (Figure b). According to the site survey and analysis,