Application of medium-length hole sublevel open stoping to the mining of thick part of high grade complex orebody;

This paper introduces the results of sublevel open-stoping method and improving measures in Piaotang Tungsten Mine and makes a discussion about the mining method to the string thick-bedded ore body.

Experiment and study on the mining of medium-thickness broken orebody by sublevel open stope method;

Stoping orebody in the end of mined-out area with underhand sublevel openstope method;