花岗闪长岩体中的掘进爆破设计方案优化

矿山在深部开拓时,平巷掘进遇到花岗闪长岩体,采用矿山常用的掘进爆破设计方案进行施工,效果很不理想。通过多次现场试验研究,调整优化了爆破设计方案,高效地穿过该段花岗闪长岩体。在改良掘进爆破设计的同时,确保了工程按时保质保量完成,为同类岩体掘进爆破施工提供了参考借鉴。

Optimization of design scheme of tunneling blasting in Granodiorite

Effects of the frequently-used design scheme of tunneling blasting are very unsatisfactory when the mine is deep exploited and encountering the granodiorite in laneway tunnelling. Through many field test studies, the blasting design scheme was adjusted and optimized, efficiently crossing this section of granodiorite, which not only improved the design of driving blasting, but also ensured the project completing timely quality and quantity, and even provided a good reference for driving blasting construction of similar rock mass.