中小断面岩巷爆破工艺优化及掘进实践

Blasting Technology Optimization and Driving Practice of Small and Medium Section Rock Roadway

为提升岩巷爆破循环进度及爆破效果,通过在低抽巷对爆破参数进行了调整优化,增加炮眼数量、调整布置方式、增加钻眼深度等,解决了生产中存在的循环进度小、光面爆破效果差、工作面大块矸石多等弊端,实现了循环进度提升了15%,施工现场工程质量达标,为中小断面岩巷的爆破工艺提供借鉴。

In order to improve the blasting cycle progress and blasting effect of rock roadway, the blasting parameters were adjusted and optimized in low extraction roadway to increase the number of blasting holes, adjust the layout and increase the depth of drilling holes, which solved the shortcomings of small cycle progress, poor smooth blasting effect and large gangue in working face. The cycle progress was increased by 15% and the construction site quality was improved. It can provide reference for blasting technology of medium and small section rock roadway.