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密集空孔爆破
是采用最早的一种光面爆破技术。其具体方法是在开挖轮廓线上布置密集空孔,靠近密集空孔布置一排加密的炮孔。这排炮孔要采取减弱装药。起爆后,在密集空孔周围造成应力集中,把爆破作用和地震效应限制在密集空孔的一侧
expl.
line-hole blasting
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