复杂多金属矿集约化开采进路断面尺寸协同优化研究

随着矿山地下开采机械化水平的不断提高，越来越多的大型金属矿山都倾向于对矿区内中小分散矿体采用集约化开采模式。然而对于矿体形态、产状多变的复杂多金属矿床，集约化开采模式推荐的最优采 场结构参数普遍存在单一性和排他性的不足。基于“协同开采”理念，将某复杂多金属矿山集约化开采的回采进路断面尺寸（宽度与高度）作为关键参数进行细部优化研究。针对由薄至中厚、倾角由缓倾斜至急倾斜 、产状复杂多样、有用元素伴生共生复杂多样的矿体，通过建立协同开采系统有序度模型，计算并比较了在经济、安全和技术多重指标相互影响下3种基准协同开采方案1、方案2和方案3的序参量分量有序度、子系统 有序度和协同度。在上述分析的基础上对协同度进行了比较并评价，获得多重指标影响下序参量分量在子系统中的协同程度。结果表明：方案2推荐的回采进路断面尺寸3 m×4 m与4 m×3 m协同开采程度最优，与前期 优选出的回采进路断面尺寸方案排序较为一致，在一定程度上验证了复合系统协同度模型对集约化开采复杂多金属矿山的适应性，为类似矿山采场结构参数优选提供了一种新思路。

Study on Synergetic Optimization of Cross-section Size of Access in Intensive Mining of Complex Polymetallic Mine

With the continuous improvement of the mechanization level of underground mining in mines， more and more large-scale metal mines are inclined to adopt intensive mining mode for small and medium-sized scattered ore bodies in the mining area. However， for complex polymetallic deposits with variable ore body shapes and occurrences， the optimal stope structure parameters recommended by the intensive mining mode generally suffer from singleness and exclusivity. Based on the synergetic mining theory， this article takes the section size (width and height) of cross-section size of backstopping access for intensive mining of a complex polymetallic mine as the key parameter for detailed optimization research. For different ore bodies ranging from thin to medium thick， dip angle from gentle to steep， complex and diverse occurrences， and complex and diverse symbiosis of useful elements， the order degree model of synergetic mining system was established to calculate and compare the economic， safety and under the mutual influence of multiple technical indicators， the order parameter component order degree， subsystem order order degree and synergy degree of the three benchmark synergetic mining schemes 1，2，and 3 under the mutual influence of technology. Based on the above analysis， the synergy is compared and evaluated to obtain the degree of synergy of the sequence parameter components in the subsystem under the influence of multiple indicators. The results show that the recommended joint mining section size of 3 m × 4 m and 4 m × 3 m recommended by scheme 2 with the optimal mining degree， which is consistent with the prior order of the selected mining section size scheme， which is verified to a certain extent. The adaptability of the composite system coordination model to the intensive mining of complex polymetallic mines is provided， which provides a new idea for the optimization of the structural parameters of similar mines.