尾砂充填采矿法采场预近顶护帮综合技术研究

为提高河东金矿的采矿生产能力，我们在河东金矿进行了新的采矿方法－预控顶分段空场尾砂充填采矿方法的研究。该采矿方法采用采场预控顶技术，中深孔爆破，铲运机出矿，尾砂充填。采场切割井用中深孔一次爆破技术，采场周边及上盘则采用光面爆破技术，确保采场稳定。为确保试验顺利进行，在采场进行了综合的护顶和护帮技术措施。

Study on the Comprehensive Technology of Presupporting of Roof and Walls in Tailings Back-fill Mining

To increase the mining capacity of Hedong Gold Mine,study was made on a new mining method at the mine,that was tailings back fill mining with roof presupporting and sublevel open stoping.The new method adopted roof presupporting,deep and medium hole blasting,LHD ore removal and tailings filling.One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.To ensure a smooth test,comprehensive technical measures for roof and wall supporting were taken.