露天-地下同步开采模式优选

摘要

为解决露天转地下矿山最佳露—地同步开采模式选择的技术难题，综合考虑了影响露天—地下同步开采模式的动态、静态、定量和非定量指标，提出了一种基于变权重理论（VWT）和逼近理想解的排序方法（TOPSIS）的综合评价指标体系，对4种候选的露天—地下同步开采模式进行综合评判优选。评判优选过程中，考虑到层次分析法等常规方法确定的常权用以评价各候选方案时可能会导致“状态失衡”的现象，依据变权重理论，根据各因素的组态（各因素的取值状况）的不同，适当调整其权重，以保证各因素的均衡性，进而利用 TOPSIS 理论计算出各方案的综合优越度，从而确定各开采模式的优越程度。将研究成果应用于石人沟铁矿露天—地下同步开采模式选择，计算得到4种备选方案的综合优越度分别为0.087、0.767、0.898和0.723，从而确定方案Ⅲ为最优方案，其结果与工程实际基本相符，在生产过程中取得了良好的经济、社会和环境效益。%To solve the open pit to underground mining best lotion-synchronized mode selection mining technical problems,the influence of open-synchronous dynamic underground mining model,static,quantitative, non-quantita-tive indicator were considered.Then we propose a theory based on Variable Weight Theory(VWT)and technique for order pleference by similarity to ideal soltion(TOPSIS)of the complehensive evaluation index sysem for four kinds of candidate open-underground mining model synchronization comprehensive evaluation preferable.Judging optimization process,AHP could lead to“state imbalances” phenomenon.According to the theory of variable weights, to ensure that the balance of the various factors,we appropriately adjust their weights based on different theories and variable weights of each factor on the configuration.And then to determine the degree of excellence of each mining model,we use the theory to calculate the overall TOPSIS superior degree of each program.The results of this paper apply to Shirengou iron ore open-underground mining synchronous mode selection,the calculated overall superiority of the four kinds of options were 0.087,0.767,0.898,0.723,and the third mining model comes to the first place.The results obtained in actual are basically consistent with the project,and achieve good economic,environmental and social benefits in the production process.