Selection of Mining Methods for Complex and Difficult-to-Mine Ore Bodies in Kafang Xiwa Ore Section
In view of the complex structure and poor stability of the surrounding rock of the ore body in Kafang Xiwa ore section,the occurrence,occurrence conditions and grade of the ore body were classified and counted through engineering geological investigation,and the ore body is divided according to the actual situation of the mine.Under the condition of establishing a comprehensive evaluation index system for mining schemes,the correlation matrix method and mining theory were combined to determine that the optimal mining scheme for rich ore bodies and relatively rich ore bodies was the upward layered filling method,and the optimal mining scheme for poor ore bodies was the sublevel open stoping method.After the actual engineering application,the comprehensive loss and dilution rate of the stope in Xiwa Mine was reduced to less than 15％,the production cost of the stope was reduced by about 10％compared with the previous,and the comprehensive production capacity in the ore section reached 350 t/d.
Complex and difficult-to-mine ore bodyOre body classificationSelection of mining methodsCorrelation matrix method
万方数据
维普
