安家岭煤矿可采的4#煤与9#煤之间有平均厚度为30 m岩石,穿孔爆破效果一直不佳,采装比较困难、生产效率低。针对此情况,结合穿爆理论,提出了合适的穿爆方案与采掘方法。 There is an average thickness of 30 m rock between 4 # coal and 9 # coal that can be taken in Anjialing Mine. The perforation blasting effect has been poor, the loading is more difficult and the production efficiency is low. In view of this situation, combined with wear burst theory, put forward a suitable blasting program and mining methods.