Abstract:

According to the mining p ractice ofWufenglou tungsten2iron ore that used shallow2hole shrinkage method in
the past four years, facing partialmine fragmentation, adap tation to local conditions, we exp lore a p lan that non2p illar
structure coexisteswith p illar structure in the mining. Floor p illar structure uses funnel type running chute supp lemented with the form of partial non2p illar ore drawing, economical and feasible. The mining scheme break the line of traditional p illar and traditional room, meanwhile by using the retrograde style slagminingmethod. The actual scene of
the ore bodywith stone and lean ore reserved for permanent p illar randomly, it imp roved the mining recovery , reduced
the poverty rate of ore effectively, and resolved the technical p roblems of the difficult of recovery p illar. The result is
well p roofed by the p ractice of ore mining in the past year, we obtain the benefits of economic and social.

Key words: Wufenglou iron ore, Shallow-hole shrinkage method, Mining, Mining recovery ratel, Fujian