许多矿井采用无煤柱开采法的经验表明,这种方法有良好的技术经济指标,因而把推广这种方法作为发展矿井生产的一项重要技术措施。然而,采用沿空送巷取消区段煤柱会使回采工作面的回风道、采空区和上一分段的老采区连成一片,这样做对回采工作面的通风安全会带来那些影响,将是本文要讨论的问题。 The experience of using non-pillar mining methods in many mines shows that this method has good technical and economic indicators and thus promoting the method as an important technical measure for developing mine production. However, the removal of section coal pillars along the roadway will bring back the return air duct and goaf of the working face and the old mining section of the previous section into a single piece. This will bring about ventilation and safety of the mining face Those effects will be discussed in this article.