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加强生产探矿,合理布置脉外掘进方向,在掘进脉外巷道时巷道拱顶与矿体的垂直距离应控制在5~7 m,减少回采脉外切割量,降低采矿成本,提高经济效益。
Strengthen the production of prospecting, reasonable arrangement of the direction of extra-pulse tunneling, the vertical distance between the roadway vault and ore body when tunneling outside the veins should be controlled at 5 ~ 7 m, reduce the extra-cutting pulse extractions, reduce mining costs and improve economic efficiency.