摘要
针对我国部分煤矿下山爆破掘进存在的问题,分析了造成现状的原因,从掏槽位置、掏槽方式、合理布置辅助眼及起爆顺序等方面出发,提出"裂槽、抛渣"新思路,探讨炮眼深度的选择、炮眼数目及装药量的确定,给出了下山掘进爆破的几个建议。
Aim at the problems of China coal mine tunneling down the mountain blasting, the reasons for the status were analyzed. From the cutting location, cutting mode, reasonable layout of supplementary bole and initiation sequence, we advanced a new ideas of ＂cracked groove, cast fragments＂ , and discussed the choice of horehole depth, the number of boreholes and the charge amount. Finally, some provided experiences of tunneling down the mountain blasting can improve the driving speed and solve the problem existing in the tunneling down the mountain blasting.
出处
《爆破》
CSCD
北大核心
2011年第4期40-42,共3页
Blasting
关键词
下山爆破
抛渣药包
掏槽眼
底根
眼痕率
tunneling down the mountain
cast fragment charge
cutting holes
bedrock
ratio of half-hole
