针对松软、透气性差、采深大且突出危险日益严重的单一厚煤层而言,采取合适的防突措施,使煤层充分卸压增透,提高瓦斯抽采率,是煤巷掘进提高单进的关键。通过理论分析和实践证明,在松软低透气性大采深突出煤层煤巷掘进工作面进行控制预裂爆破技术是可行的,不仅可以大幅提高煤层透气性,还可以通过抽放、排放,降低煤层瓦斯含量和瓦斯压力,煤体应力向深部转移,消除前方突出危险性,煤巷单进水平大幅提高,月单进由原来不足40 m提高到60 m,缓解采掘接替紧张局面,确保了矿井安全生产。 For the soft, poor ventilation, deep mining and highlighting the increasingly serious danger of a single thick coal seam, take appropriate measures to prevent outburst to make the coal seam fully pressure relief enhance penetration and improve gas extraction rate is to improve single-lane coal heading The essential. Through theoretical analysis and practice, it is proved that it is feasible to control pre-cracking blasting technology in coal mining face with soft, low permeability and high permeability, and not only can greatly improve the permeability of coal seam, but also can reduce the coal seam Gas content and gas pressure, the transfer of coal to the deep stress, to eliminate the prominent danger in front of the coal single entry level increased significantly, the monthly single from the original less than 40 m increased to 60 m, ease the tension to replace the mining to ensure the safety of the mine produce.