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微差爆破技术在石炭系基岩开挖中的应用

Application of Millisecond Blasting Technology in Excavation of Carboniferous Bedrock
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摘要 为了满足爆破后物料的粒径分布要求,减少二次破碎工作量,根据爆破料场石炭系基岩的地质条件,采用微差爆破技术,孔内分区块采用不同高段位非电毫秒导爆管雷管,孔外排间采用同段低段位非电毫秒导爆管雷管延期起爆网路,优化布孔参数,进行大方量现场开挖试验。爆破效果表明,物料的级配满足施工要求,爆破有害效应控制在安全范围之内,采用微差爆破技术可以实现爆破物料的级配要求。
出处 《现代矿业》 CAS 2018年第8期94-96,共3页 Modern Mining
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