某水电站地下厂房岩锚梁开挖爆破研究

Blasting experiments and study of rock bench excavation of rockwall crane beam of the left bank underground workshop of certain hydroelectric plant

为获得良好的岩台开挖效果,利用相关工程经验并结合现场实际,在岩石完整与破碎部位采用不同的钻爆参数进行垂直孔与仰孔相结合的岩台光爆试验,分析和比较不同开挖方案的爆破效果,综合考虑爆破震动安全监测和围岩松动圈测试的成果,确定了一组开挖岩台的最优施工程序和钻爆参数。

For desired blasting effects, different blasting parameters are adopted in the experiments of vertical holes and acclivitous holes smooth blasting in integrated and broken zones by engineering analogy. A set of optimized construction procedure and blasting parameters are set down by comparison of different experiments and analysis of blasting vibration monitoring and broken rock zone tests.