坑内钻探在云南白姑矿段脉外巷道的实践

The Practice in Pit Drilling of Bai Gu Ore Block Outside the Tunnel

简述云南白姑矿段十中段脉外巷道通过施实坑内钻探,进一步提高储量级别,降低和避免井下采矿工程和开拓工程的风险,节省了工程量,节约了成本。

In this paper, we have a simple operation of ore block of white veins outside in the tunnel through the middle ten real pit in drilling facilities to further enhance the level of reserves, we try to reduce and avoid the underground mining engineering and the risk of developing the project,saving the project the amount of cost savings.