不良地质条件下控制爆破技术在某露天矿山开采中的应用  

Application of controlled blasting technology in mining of an open pit mine under adverse geological conditions

作　　者：万佳[1] WAN Jia(Geological team 327 of Anhui Bureau of Geology and mineral exploration,Hefei 230011,China)

机构地区：[1]安徽省地质矿产勘查局327地质队,安徽合肥230011

出　　处：《世界有色金属》2022年第13期37-39,共3页World Nonferrous Metals

摘　　要：露天矿山是一种特殊的开采矿种,所以,在开采过程中就需要采用专门的技术。针对某露天矿山开采过程中出现爆破地质条件不良、有溶洞、裂隙、土夹石,周边环境复杂、边坡高陡等实际情况。在施工中采取了分层开挖、逐孔起爆、缓冲爆破、合理设置起爆顺序等一系列技术措施,有效地控制了爆破振动及飞石、滚石对临近民房和高压电线的影响,为露天矿山开采顺利进行提供了有益的经验。Open pit mine is a special kind of mining ore,so special technology needs to be adopted in the mining process.In view of the actual situation in the mining process of an open-pit mine,such as poor blasting geological conditions,karst caves,fissures,soil mixed with stones,complex surrounding environment,high and steep slope and so on.A series of technical measures such as layered excavation,hole by hole initiation,buffer blasting and reasonable setting of initiation sequence were adopted in the construction,which effectively controlled the blasting vibration and the impact of flying stones and rolling stones on adjacent civilian houses and high-voltage power lines,and provided useful experience for the smooth progress of open-pit mining.

关 键 词：复杂环境 不良地质 逐孔起爆 爆破参数 爆破振动控制 

分 类 号：TD235.37[矿业工程—矿井建设]