深孔预裂爆破产生的应力波相互叠加,加快了两爆孔间裂纹的形成和沟通速度,有效促进卸压带的形成。以淮南矿业集团谢一矿5121工作面为例进行深孔预裂爆破试验,运用ANSYS软件进行数值模拟,并分析了爆破过程中的3个阶段,为高瓦斯低透气性煤层的安全生产提供了一个较好的解决方案。
Deep hole presplitting blasting stress wave produced by the superposition of two blast hole,accelerate the crack formation and communication speed,effectively promote the formation of the pressure relief zone.Taking Huainan Mining Group Xieyi coal mine 5121 working face as an example of deep hole pre splitting blasting test,numerical simulation is carried out using the ANSYS software,and analyzes the three stages in the process of blasting,for high gas and low permeability coal seam safe production provides a better solution.