摘要
该文以弓长岭露天铁矿何家采区188m水平的预裂爆破为例,介绍了预裂爆破的钻孔参数、装药参数和施工工艺。应用预裂爆破技术达到了台阶式开采终采边坡一次成型的效果,说明采用该技术可提高边坡的稳定性,降低边坡维护费用,为以后的类似露天矿山实施预裂爆破提供了成功的经验。
This paper takes the 188 m horizontal pre-splitting blasting in Hejia Mining Area,Gongchangling Open-pit Iron Mine for example. The drilling parameters,explosive parameters,and the construction technology of pre-splitting blasting are introduced. The effect of one time molding of step slope mining and end mining are achieved by using the pre-splitting blasting technology. It shows that this technique can improve the stability of the slope,and reduce the cost of slope maintenance. It provides successful experience for pre-splitting blasting for similar open-pit mine in the future.
作者
张忠政
房洪亮
秦志辉
卢晓辉
李天龙
Zhang Zhongzheng;Fang Hongliang;Qin Zhihui;Lu Xiaohui;Li Tianlong(Gongchangling Co.,Ltd.Anshan Iron and steel Group Mining;Zhongkan Metallrgical Geotechnical Investigation Design and Research Institute Co.,Ltd.)
出处
《勘察科学技术》
2018年第4期36-38,55,共4页
Site Investigation Science and Technology
关键词
预裂爆破
爆破设计
爆破施工
边坡稳定
pre-splitting blasting
blasting design
blasting construction
slope stability
