摘要
为减小露天矿山大规模爆破引起的震动危害效应对边坡稳定性及周边建筑设施产生的破坏与损伤,文章在分析露天边坡控制爆破影响因素的基础上,在攀枝花铁矿开发和应用了逐孔预裂爆破、孔内分段上段先爆、保护空孔降震技术、超深预裂孔爆破等边坡爆破安全控制技术,有效控制了露天边坡边界,并大幅降低了爆破振动危害效应,可为类似矿山的边坡稳定性保护和爆破震动控制提供有益的参考。
In order to reduce the damage of blasting vibration induced by large-scale blasting in open-pit mine on the slope stability,this paper firstly analyzes the influence factors of slope control blasting. On this basis,the safety control technologies of slope blasting,including hole-by-hole initiated presplitting blasting,upper section firstly initiating,vibration decreasing with empty holes,extra-deep hole blasting,are applied in Panzhihua open-pit iron mine. It is shown that the safety control technology could not only effectively control the open slope boundary,but also greatly reduce the damage effect of blasting vibration.
作者
罗红
LUO Hong(Panzhihua Iron Mine ,Panzhihua 617011, Chin)
出处
《湖南有色金属》
CAS
2018年第3期5-7,12,共4页
Hunan Nonferrous Metals
关键词
露天矿
边坡稳定性
控制爆破
预裂爆破
open-pit mine
slope stability
control blasting
presplitting blasting
