基于平方差最大化法的采矿方法优选体系构建

Optimization of mining based on maximization of square difference

采矿方法多目标数学决策中,获取指标客观权重,保证指标权重确定的合理性和最优性,是采用数学方法进行采矿方法优选的关键。基于离差最大化法、方差最大化法的理论,构建了基于平方差最大化法的采矿方案优选体系,从权重范围已知和权重范围未知两方面,对实例矿山采矿方法进行优选,得出了该矿最优的采矿方法为大直径深孔阶段矿房法。结果表明,平方差最大化方法能保证指标权重的最优性;采用该方法进行采矿方案优选,具有概念清晰、易于操作、排序结果准确等优点,为采矿方案优选提供了新思路。

In multi-objective mathematical decision making of mining method,the key to mathematically optimize mining method selection is to obtain the objective weights of the index and ensure the rationality and optimality of the weights.Based on the maximization of deviation and variance,the mining method optimization system is constructed by using the maximization of square difference.The mining method is optimized for an example mine in two cases of known and unknown weight range,and the obtained optimal mining method is the large diameter deep hole stage mining method.The results show that the maximization of square difference ensures the optimality of index weights,offers the advantages of clear concept,easy operation,and accurate ranking results,and provides a new idea for the optimal selection of mining method.