中国矿山工程

With underground mining continues to operate at large buried depths, the operating environment such as ventilation, safety, and drainage is becoming more and more complex. The selection of different mining methods is particularly important for the sustainable development of mines. Based on the mining technical conditions of Pakrut Gold Mine, this paper selects four mining methods (caving method, upward layered filling mining method, segmented empty field subsequent filling method, and terraced empty field dry filling method) and 8 evaluation indicators (production capacity, cutting ratio, loss rate, dilution rate, operating cost, ventilation conditions, production organization, safety conditions). And then the AHP-Fuzzy-TOPSIS analysis model is used to calculate the accessible degree of three representative middle sections of 2292m, 2050m and 1930m, and the results are analyzed, which fits with the actual production situation of the mine and verifies the validity of the method. feasibility. It provides a theoretical basis for the selection of the mining method in the middle section of 1930m in the next step, and also provides a certain reference for other mines to choose the optimal mining method in different production stages.