Study on Mining Method of Medium Stable Ore Body in Hexi Gold Mine
The mining of inclined thin-medium thick ore bodies is one of the difficulties faced by mines.By investigating the geological conditions and rock mass quality classification of Hexi gold deposit,it is determined that the ore rock is medium stable.According to the shape of the ore body and the stability of the ore rock,the mining method is optimized.It is determined that the mechanized upward horizontal layered tailings cemented filling method is adopted,and the process design of ore block layout,mining,mining and filling is carried out.The practice shows that the ore production capacity of the mechanized upward horizontal layered tailings cemented filling method is adopted in Hexi Gold Mine reaches 180 t/d,the loss rate is 8.00%,the dilution rate is 10.00%,and the operation safety and work efficiency are improved.
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