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rockplug drilling blasting
expl.
岩塞炮孔爆破
炮孔爆破是在岩塞掌子面布置较为密集的炮孔,在炮孔中装药进行爆破,一般用于断面较小的岩塞。国外的阿斯卡拉、雪湖以及我国的香山、密云等工程均采用这种爆破方式
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