摘要
本文探讨了在特硬岩立井掘进爆破中的掏槽方式以及现场应用情况。对2.3 m炮孔爆破与2.8 m炮孔爆破的掘进速度、直接作业成本作了定量的对比分析。试验表明:强力复合掏槽在特硬岩立井掘进爆破中应用效果良好;2.3 m炮孔比2.8 m炮孔爆破的掘进速度更高、作业成本更低。
In this paper, cutting form and its actual application in sinking and blasting of hard rock shaft are discussed. The sinking and blasting velocity and cost for 2.3 m and 2.8 m hole depth are contrasted by quantitative analysis. The results show that mighty compound cutting can give a good effect of sinking and blasting in hard rock shaft, and sinking velocity adopted for 2.3 m hole is higher and its production cost is lower than that of 2.8 m hole.
出处
《地下空间与工程学报》
CSCD
2005年第6期903-907,911,共6页
Chinese Journal of Underground Space and Engineering
关键词
立井
掘进爆破
作业成本
强力复合掏槽
掘进速度
shaft
sinking and blasting
production cost
mighty compound cutting
sinking velocity
