采矿废石—尾砂混合骨料在下向分层进路胶结充填采矿中应用的试验研究

何建元,李宏业,高谦,尹升华

Experimental Research on Application of Mixed Aggregate of Mining Waste Rock and Tailings in Downward Layered Approach and Cemented Filling Mining Method HE Jianyuan1，LI Hongye1，GAO Qian2，YIN Shenghua2

表2 金川矿山废石和选矿尾砂粒径分析结果

Table 2 Analysis results of particle size of waste rock and tailings in Jinchuan mine

骨料 粒径/mm 频度分布/% 负累积分布/% 选厂尾砂 0.0005 3.51 3.52 0.0015 4.92 8.43 0.0030 6.22 14.62 0.0060 10.81 25.42 0.0120 15.41 40.81 0.0240 7.92 48.73 0.0480 12.12 60.82 0.0960 24.01 84.82 0.1640 15.22 100.00 废石骨料 0.0800 5.52 5.52 0.2370 2.51 8.01 0.4720 7.02 15.01 0.9420 5.68 20.68 1.8040 7.02 27.65 3.5560 14.34 42.01 7.1260 41.32 83.32 12.7400 16.68 100.00