塔中矿业1070水平重车道与主斜坡道上覆的2b矿体品位高,回收价值大,但采场空区下盘边界距重车道不足3m,继续回采会危及到矿山主要运输系统的安全。因此,研究提出了巷道支护加固、充填治理空区、副中段回收残留矿石综合方案,不仅有效保证了重车道及斜坡道的安全稳定运行,同时较原采矿方案多回收约13000t矿石。 Tazhong Mining 1070 level heavy lane and main ramp 2b ore body overlying the high grade, the recovery value, but the lower boundary of the mining area emptying lane less than 3m, continue to mine will endanger the safety of the main transport system. Therefore, the study proposed a comprehensive proposal of roadway support and reinforcement, filling and disposal of empty areas and secondary mid-section recovery of residual ore, which not only effectively ensured the safe and stable operation of heavy lanes and ramps, but also recovered about 13000t more ore than the original mining scheme.