露天矿山开采逐孔爆破总装药量大小对爆破振动影响的研究  

Study on the effect of total charge amount of hole-by-hole blasting on blasting vibration in open-pit mining

作　　者：姚金宝 YAO Jinbao(Ningxia Tianhong Blasting Co.,Ltd.,Yinchuan 750000,China)

机构地区：[1]宁夏天宏爆破有限公司,宁夏银川750000

出　　处：《煤矿爆破》2023年第3期31-34,共4页Coal Mine Blasting

摘　　要：为了有效控制露天矿山爆破开挖中爆破振动对周边建(构)筑物的有害影响,利用爆破振动测振仪收集榆树沟露天矿山逐孔爆破作业施工爆破振动数据(逐孔爆破作业过程中变动总装药量,其他爆破参数不变),通过对比分析收集到的爆破振动数据,结果表明,露天矿山逐孔爆破中随着总装药量的增加,爆破振动速度会有所加快。因此,在对爆破振动较敏感环境中爆破作业时,不仅要考虑最大单段药量、炸药类型、起爆方式等因素对爆破振动的影响,还要考虑总装药量大小对爆破振动的影响。In order to effectively control the harmful effects of blasting vibration on surrounding buildings and structures in the blasting excavation of open-pit mines,the blasting vibration data of hole-by-hole blasting operation in Yushugou open-pit mine are collected by blasting vibration vibrometer(the total charge amount is changed in the process of hole-by-hole blasting operation,and other blasting parameters are unchanged).By comparing and analyzing the collected blasting vibration data,the results show that the blasting vibration velocity will increase with the increase of the total charge amount in the hole-by-hole blasting of open-pit mines.Therefore,when blasting in a more sensitive environment,we should consider not only the influence of the maximum single-stage charge,explosive type,detonation mode and other factors on blasting vibration,but also the influence of the total charge amount on blasting vibration.

关 键 词：露天矿山开采 爆破开挖 爆破振动 总装药量大小 

分 类 号：TD235[矿业工程—矿井建设]