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针对2个立井揭穿同一煤层且均有突出危险性的情况,利用两井筒距离较近的有利条件,提出了联合区域防突措施的构想,在对实施方案进行充分论证的基础上,提出了先揭煤井筒揭煤时对后揭煤井筒预先进行区域防突措施施工,实施效果表明采用此方法明显缩短了揭煤工期,取得了比较好的安全和经济效益。
Aiming at the situation that the two vertical shafts are exposed to the same coal seam and have the outstanding danger, this paper proposes the conception of joint prevention measures based on the favorable conditions that the two shafts are close to each other. Based on the full demonstration of the implementation scheme, When exposing the coal mine shaft, the construction of the outburst prevention zone in the coal seam was carried out in advance. The implementation results show that this method has obviously shortened the coal exposure period and achieved relatively good safety and economic benefits.