提高掏槽质量,增加硬岩巷道掘进效率的试验研究

Study on Test of Improving Quality of Gate Excavation and Boosting Efficiency of Roadway Excavation through Hard Rock

根据巷道断面和施工条件,在坚硬岩石中的掘进试验,完善了直眼掏槽的分次爆破工艺,并以力求掏槽效果为中心,优化改进了相关作业工序;不但提高了爆破效率,增加了循环进尺,同时节约了材料消耗。

Based on the roadway section and the constructing condition, the test of roadway excavation through hard rock improves the technology of blasting by stages in straight hole gate excavation, and centralizing on the effect of gate excavation, optimizes the related working procedure; not only boosts the blasting efficiency and cycle advance, but also reduces the consumption of materials and supplies.