高海拔矿山掘进通风方式优选

 为解决高原矿井掘进面通风难题,以西藏自治区某多金属矿为工程背景,依据层次分析法(AHP)与逼近理想解排序法(TOPSIS),建立通风评判模型,对3 种拟定的混合式掘进通风方式进行优选。根据高原矿井负压低氧的特殊环境,从技术、经济、安全3 个方面选取通风系统的评判指标,运用AHP 法客观确定各评判指标的权重向量,结合TOPSIS 法分析贴近度并计算得出各通风方式的综合优越度。计算结果表明,第2 种通风方式(长压短抽)优越度最高。通过AHP-TOPSIS 优选的结果科学合理且符合生产实际,可为高原矿井掘进通风方式选择提供理论依据。

Optimization of drifting ventilation method for high-altitude mine

In order to solve the drifting ventilation problem in high-altitude mines, a comprehensive evaluation model for ventilation is established based on the basic theory of analytic hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS). Three kinds of compound drifting ventilation methods are evaluated with a poly-metallic ore in Tibet autonomous region as the engineering background. First, evaluation indexes of ventilation system are selected from three aspects: technology, economy and security, according to the special environment of negative pressure and hypoxia in high-altitude mines. Then, the weight matrix of each evaluation index is determined objectively through the AHP method. Finally, the closeness is analyzed with the combination of TOPSIS method and the superior degree of each ventilation method is calculated. The results show that the second ventilation method, i.e., far-pressing-near-absorption, is the optimal. The optimization results calculated by AHP-TOPSIS method are scientific and reasonable and in line with the actual production, which can provide a theoretical basis for the selection of drifting ventilation method for high-altitude mines.