半煤岩巷分次爆破掘进技术分析

Analysis of Fractional Blasting and Tunneling Technology for Semi Coal-rock Roadway

结合实际矿井巷道掘进工程,分析了全断面一次爆破技术和分次爆破技术两种爆破工艺,对比分析了两种工艺施工效果。实践证明,运用分次爆破技术能提高炮眼利用率,循环进尺明显改观,大幅度提升了爆破效率和光爆质量。

Combining with the actual mine roadway excavation project, this paper analyzed two kinds of blasting technology in full cross-section primary blasting technology and fractional blasting technology, and compared and analyzed the construction effect of the two kinds of technology. Practice has proved that the application of fractional blasting technology can improve the utilization rate of the blast holes, improve the circulating footage obviously and greatly improve the blasting efficiency and the quality of smooth blasting.