基于未确知测度理论的矿柱回采方案优选

针对国内某铅锌矿深部采场中所遗留的高品位矿柱为工程背景，旨在寻找一种适用于此深部采场所遗留矿柱的高效且安全的回采方案。为此，采用了未确知测度理论，初选出三种矿柱回采方案，并选取采场生产能力等6个指标为定量指标以及机械化程度等3个定性指标共9个指标建立单指标测度函数，对三个方案进行综合评判。经过分析计算，机械化上向水平分层充填法(方案一)的优越度为2.27，属于Ⅱ级；分段凿岩阶段空场嗣后充填法(方案二)的优越度为2.55，属于Ⅰ级；上向水平分层进路充填法(方案三)的优越度为2.23，属于Ⅱ级。因此，方案优越度排序为:方案二>方案一>方案三。结果表明，方案二为最优的回采方案，能够高效且安全地回采深部采场中所遗留的高品位矿柱。

Optimisation of Inter-column Recovery Options Based on Unconfirmed Measure Theory

This study aimed to find an efficient and safe mining plan for the high-grade ore pillars left in a deep mining area of a domestic lead-zinc mine. To achieve this goal, the study used the uncertain measurement theory to initially select three mining plans and established a single-index measurement function with nine indicators, including six quantitative and three qualitative indicators, such as mining capacity and mechanization degree, After analysis and calculations, the superiority degrees of the three mining plans are as follows: (Plan 1), the mechanized upward horizontal sublevel filling method, has a superiority degree of 2.27, classified as level II;(Plan 2), the segmented rock drilling followed by stope filling method, has a superiority degree of 2.55, classified as level I; (Plan 3), the mechanized upward horizontal access filling method, has a superiority degree of 2.23, classified as level II. Therefore, the ranking of plan superiority is as follows: Plan 2 > Plan 1 > Plan 3. The results showed that Plan 2 was the optimal mining plan that could efficiently and safely recover the high-grade ore pillars left in the deep mining area.