某大型露天矿新水平开拓工程优化  

Optimization of New Level Development Project in a Large Open-pit Mine

作　　者：王凯 李旺旺 闫永富 WANG Kai;LI Wangwang;YAN Yongfu(Ordos Energy Bureau;Mining Research Institute of Inner Mongolia University of Science and Technology)

机构地区：[1]鄂尔多斯市能源局,内蒙古自治区鄂尔多斯市017000 [2]内蒙古科技大学矿业研究院

出　　处：《现代矿业》2022年第6期68-70,共3页Modern Mining

摘　　要：露天矿山的新水平开拓工程作业空间狭窄,但往往要求施工快速、高效。通过调整工序,将抽排水工作布置在穿孔工序之前,以提高成孔率、改善爆破质量;通过合理分配穿孔作业空间,使用小孔径炮孔和倾斜炮孔,将出入沟与开段沟合区进行穿爆,加快了爆区的成区速度。通过与传统工艺的对比,优化后的穿爆工艺工期大大缩短。The new level development project of open pit mines has a narrow working space,but often requires fast and efficient construction.By adjusting the process,the pumping and drainage work is advanced before the perforation process to increase the porosity and improve the blasting quality.By rationally distributing the perforation operation space,using small-diameter blastholes and inclined blastholes,the entry and exit trenches and the open-section trenches are pierced and blasted,which speeds up the formation speed of the blasting area.Compared with the traditional process,the optimized blasting process construction period is greatly shortened.

关 键 词：露天矿 掘沟 超前抽排水 穿孔爆破 

分 类 号：TD235[矿业工程—矿井建设]