Abstract:

This paper briefs the Xiaotieshan mine's high-grade residual deposit extraction technology.The Xiao tieshan mine's ore body condition is badness,on initial the mine had used some kind of mining method to experiment.There is lot of over stocking mine and the caved residual deposit on the joint part of each mining method.We used the drifi-fill stoping and under drift-fill stoping on this over stocking mine.On the caved residiual deposit we used some techonolgy such as cement injection、the mode of excavate and extraction sequence ptimization、drill and ground support modification、streng then the mangement of fill to safe and high efficiency extraction this mine.

Key words: residual deposit, cement injection, mangement of fill, high efficiency extraction