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| 切槽孔爆破切槽爆破实质就是将爆破的圆形孔断面结构改为带锥形的刻槽孔〈或称V形槽〉，随后装药爆破的方法。切槽孔爆破对围岩的扰动最小，比光面爆破、预裂爆破对围岩的影响深度要降低1/2 以上，既保证了围岩稳定、又减少超挖 | |||
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