驻留矿体最佳开采方案研究

Study on optimum mining program of reside orebody

为解决驻留矿体开采技术难题,建立了开采方案综合评判指标体系,运用熵权法、层次分析法及密切值法基本理论对开采方案进行了综合评判选择,从而确定驻留矿体最佳开采方案。评判过程中,采用二元比较法将影响采矿方案的定性指标相对定量化,建立综合评判定量指标体系;运用优化的熵权法与层次分析法相结合的方式求得均衡权重,进而通过密切值法计算各采矿方案的密切值,以确定开采方案的优劣。将该方法应用于姑山铁矿驻留矿体回采方案的优化选择中,得出3种采矿方案的密切值分别为0、3.8、5.1,从而确定第一种方案为最优方案。经生产实践证实,该方法确定的采矿方案取得了良好的经济效益。

In order to solve the technical problems of mining reside orebody, comprehensive evalua- tion index system of mining program was established. The basic theory of entropy weight method, ana- lytic hierarchy process and close value method were used to evaluate mining program to determine the best mining program of reside orebody. During the evaluation process, qualitative indicators were made quantitative relatively by binary comparison method. Synthetic assessment quantitative indexes system was established. And through optimized entropy weight method and the analytic hierarchy process, e- qualization weights were obtained. Then by calculating best mining program was determined. This method side mine in Gushan Iron, in which close values showing that the first program is the best. Through the close value with close value method, the was applied to select the best mining program of re- of the three mining programs were 0, 3.8, 5. 1, production practice, it was confirmed that the min- ing program determined by this method had achieved good economic benefits.