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为了顺利进行崩落法转充填法开采工作,程潮铁矿采用灰色关联分析法,依据分段留矿嗣后充填法、上向进路充填法、下向进路充填法3种优劣差别较小的备选充填采矿方案与理想方案和负理想方案的灰色关联度,构建各备选方案的灰色关联相对贴近度(GCRN),以灰色关联相对贴近度表征方案间的差距,进行采矿方法优选,得出最优方案为上向进路充填法。矿山试验段试生产情况表明,优选采矿法采场生产能力为1056t/d,损失率为7.8%,贫化率为4.8%,成本约为90元/t,满足矿山生产目标要求。
In order to smoothly carry out the caving mining method, Chengchao Iron Mine uses the gray correlation analysis method, according to the sub-post-filling subsequent filling method, the upward filling method and the downward filling method with three different advantages and disadvantages The gray relational degree of the mining program and the ideal program and the negative ideal program are selected to construct the Gray Relational Relative Degree of Closeness (GCRN) of each alternative program, and the gray relational close degree is used to characterize the gap between the programs, and the mining method is optimized. The best program for the road filling method. The pilot production in the pilot section of the mine shows that the mining capacity of the preferred mining method is 1056t / d, with a loss rate of 7.8% and a depletion rate of 4.8%. The cost is about 90 yuan / t, which meets the requirements of mine production targets.