在坚固岩层中提高平巷掘进爆破率的实践

Practice of Raising Drift Tunnel Blasting Efficiency in Solid Rock Layer

针对在坚固岩层中平巷掘进爆破效率较低的问题,通过分析其主要影响因素,确定了合理的掏槽方法和爆破参数;施工实践表明:平巷掘进爆破率得到了提高,并且取得了良好的经济效益。

In view of the problem of low drift tunnel blasting efficiency, by analyzing the main influencefactors, the proper blasting parameters are determined. Operating practice shows drift tunnel blasting efficiencyhas been raised and conspicuous economic benefit is obtained.