摘要
光面爆破在岩石条件较差的巷道掘进中应用广泛,它能使巷道成形规整,减少掘进过程中的超挖量和岩石装运量,加快施工进度,同时也降低了通风阻力,节省大量材料,降低支护费用。针对某矿山普通法掘进遇到的支护难度大、成本高以及炸药及火工材料浪费严重的问题,使用光面爆破方法并确定合理的爆破参数,取得了良好的爆破效果。
Smooth blasting is widely used in roadway excavation with poor rock conditions,It can make tunnel formation regular,Reduce the amount of over-excavation and rock loading during tunneling,Speed up the construction progress,While also reducing the ventilation resistance,Save a lot of material,Reduce support costs. Aiming at the difficulty of support,high cost and serious waste of explosives and pyrotechnic materials encountered in common excavation of a mine,Using the Smooth blasting method and determining the reasonable blasting parameters,a good blasting effect is achieved.
出处
《世界有色金属》
2017年第2期68-70,共3页
World Nonferrous Metals
关键词
光面爆破
掘进
支护费用
Smooth blasting
Tunneling
Support costs
