Abstract:

It is remain an enormous and difficult problem to improve the efficiency of stoping the gentle dip and filminess ore body.If the resuming fill is applied to stope ore body according to the conventional rules，it will lead to lower efficiency and higher loss impoverishment rate，especially，the slip of mine system arrangement can not effectively solve the problem for gentle dip and filminess ore body.Aiming at the problem above，thus the resuming-fill mining method is optimized.Using the chute instead of sneaking underground ore，both sides of the chute with rubble wall，all of which can make the staff enter the chute to solve the blocking phenomenon，additionally，it improves the mining efficiency.Making use of cemented backfilling materials filling in caving on the basis of rubble，and playing a layer with enough strength of cementation plane can not only reduce the dilution loss rate，but also greatly improve the efficiency of ore mining.These optimization measures have been widely applied in Wangershan sub-ore of Jiaojia gold mine，which has brought good economic benefit for the mine.

Key words: resuming fill, gentle dip and filminess ore body, chute