Caving space optimization method of following-vein drift in medium thickness orebody

Application of sublevel caving to mine medium thick ore body, the caving space of following-vein drift is one of the important parameters for ore Loss and dilution. Based on the relationship of Blasted ore body, Remnant ore body and draw body,the paper proposed the optimization method of the caving space in the following-vein drift .This method was applied to Gongchangling underground iron mine, and the good practical effect was achieved.