露天采矿技术2024，Vol.39Issue(3)：24-27,4.DOI:10.13235/j.cnki.ltcm.2024.03.006
露天煤矿富水深孔爆破间隔器研发与应用
Research and application of interval detonators with water-rich deep hole blasting in open-pit coal mines
杨淑琴 1李世浩 2杨鹏2
作者信息
- 1. 山西中煤平朔爆破器材有限责任公司,山西 朔州 036006
- 2. 中国矿业大学(北京) 应急管理与安全工程学院,北京 100083
- 折叠
摘要
Abstract
In order to solve the problem that water-rich gun holes encountered in open-pit mining cannot be installed with air spacers for spaced charge blasting,a special spacer for water holes was developed on the basis of analyzing the applicability and structure of air spacers,which is used to reduce the use of emulsion explosives.The expansion effect of the water hole spacer and supporting effect on the emulsion explosives,and the influence on the blasting effect were studied by means of ground experiments and on-site inspections.The results show that the water hole spacer is applied in water-rich deep hole blasting,the situation of the burst pile after blasting,the rate of large pieces and the root after shoveling are comparable with the surrounding non-spaced charge blasting,which realizes the reduction of cost and increase of efficiency.关键词
富水孔/装药结构/深孔爆破/乳化炸药/水孔间隔器Key words
water-rich hole/charging structure/deep hole blasting/emulsion explosives/water hole interval detonator分类
矿业与冶金引用本文复制引用
杨淑琴,李世浩,杨鹏..露天煤矿富水深孔爆破间隔器研发与应用[J].露天采矿技术,2024,39(3):24-27,4.
