摘要
通过分析铜绿山矿井下巷道掘进工艺中存在的问题,对比井下中深孔采矿掏槽工艺,引入并制作巷道掘进扩孔钻头,优化巷道掘进掏槽孔布置,并在现场进行应用实验,实现了铜绿山矿井下巷道掘进工艺功效提高15%、掘进材料成本降低7%的目标,并有效改善了掘进施工的爆破效果,提高了现场施工的安全高效性。
By analyzing the problems in the underground drift advancement process in Tonglushan Mine,comparison is made for the cut processes of medium-length hole,the reamer bit for drift advancement is introduced and made,the distribution of cut holes for drift advancement is optimized,and the site application test is conducted,so that the efficiency of the underground drift advancement in Tonglushan Mine is improved by 15%,and the material cost for advancement is reduced by 7%;in addition,the blasting effect of advancement construction is effectively improved and the safety and efficiency of site construction is improved.
出处
《中国矿山工程》
2022年第2期25-29,共5页
China Mine Engineering
关键词
巷道掘进
扩孔钻头
参数优化
炮孔利用率
炸药单耗
drift advancement
reamer bit
parameter optimization
blast hole utilization ratio
unit consumption of explosives
