In the mining process of medium thick steeply inclined orebody,changing the relative position of manway and pass on the stope face to suit the change of orebody can reduce the dilution rate.

• 在中厚倾斜矿体的开采过程中,改变人道和溜井在采场面的相对位置,可适应矿体的变化,降低贫化率。