基于模糊数学-层次分析法的水泥胶结充填料浆配比优化研究

Optimization of the Slurry Ratio in the Cemented Filling with the Cement Based on Fuzzy Mathematics and Analytic Hierarchy Process

针对某矿山残矿回采时充填效果存在的问题,采用水泥胶结全尾砂充填。根据充填料浆的力学性质和流动性能,初步确定影响充填效果较大的因素:28 d单轴抗压强度、单位沿程阻力和自然沉降速率。为了进行充填料浆配比优化研究,应用模糊数学和层次分析法分别建立各配比的隶属度矩阵和以上影响因素的权重矩阵,通过模糊决策确定该水泥胶结全尾砂充填料浆的最优配比:灰砂比(水泥用量∶全尾砂用量)1∶4、浓度72%。优化结果表明:在保证料浆充填体的强度前提下,最优配比可以有效改善料浆输送性能,减少充填成本。

Aiming proposed to adopt at the existing problems of backfill effect in stopping of residual ore in a mine, it was cemented railings backfill. This paper preliminarily identified Influencing factors of fill effect which were 28 d compressive strength, unit resistance along the way and natural sedimentation rate according to the flow properties and mechanical properties of the full tailings slurry, we made use of fuzzy mathematics and AHP to establish membership matrix of each ratio and weighting matrix of the above factors, to define results of the optimal ratio of the full tailings slurry that cement-sand ratio （cement quality： full tailings indicates that the o quality） was 1：4 and the concentration was 72% by fuzzy decision. The optimization ptimal on the premise that the ratio can effectively Improve slurry delivery performance and reduce filling cost strength is maintained.