某地下金矿巷道施工爆破参数改良实例  

An example of improving blasting parameters during the construction of a certain underground gold mine tunnel

作　　者：姜福允 王文永 JIANG Fu-yun;WANG Wen-yong(Zhejiang Jianhui Mining Construction Group Co.,Ltd,Wenzhou 325807,China)

机构地区：[1]浙江建辉矿建集团有限公司,浙江温州325807

出　　处：《世界有色金属》2024年第21期202-204,共3页World Nonferrous Metals

摘　　要：青海海西州某金矿开拓工程采用钻爆法施工,文章阐述了合理布设大直径空孔作为掏槽爆破初始补偿空间及“多打孔少装药”的亚光面爆破实例,保证较高的循环进尺和光面爆破效果,提高了炮孔利用率,降低了炸药单耗,使巷道成型更好,利于支护和安全,取得较好的经济效益和安全效果。A gold mine development project in Haixi Prefecture,Qinghai Province adopts drilling and blasting method for construction.This article elaborates on the reasonable layout of large-diameter boreholes as the initial compensation space for excavation blasting and the example of"more boreholes and less explosives"sub smooth blasting,which ensures high cycle footage and smooth blasting effect,improves the utilization rate of boreholes,reduces the consumption of explosives,improves the formation of tunnels,is conducive to support and safety,and achieves good economic and safety benefits.

关 键 词：地下矿山巷道施工 爆破参数改良 大直径空孔直孔掏槽 光面爆破 安全、经济 

分 类 号：P634[天文地球—地质矿产勘探]