复杂地质条件下大断面竖井爆破开挖

Excavation of large cross-section shaft under complicated geological conditions

介绍了在复杂地质条件下大断面竖井开挖中,采用深孔掏槽爆破结合周边光面爆破技术,并根据地质条件的变化,合理选择光面爆破参数,能加快施工进度,缩短工期,取得良好的爆破效果,可供类似工程参考。

This paper introduced the deep-hole cutting blasting,combined with surrounding smooth blasting technology in the excavation of large cross-section shaft under complex geological conditions.According to the changes of geological conditions,reasonable selection of smooth blasting parameters can accelerate the construction progress,shorten the construction period and achieve good blasting effect,which can provide a reference for similar projects.