Abstract:

Since Yunxi Mine launched the comprehensive experiment of the exploitation method and adopted the technology of homologous f ramework st ructure and hollow areas disposal (the new technology of artificial jamb , artificial floor and three-powerful operations) in 2000, the reloss and re-impoverishing were reduced and the gold grade was highly improved. Therefore, the will be accomplished 2 levels’total loss ratio and impoverishing ratio were only 3.58 % and 15.27 % respectively as well as the better tech-economy efficiency were gained.

Key words: rocked-gold mine deposit, shallow whole shrinkage stopping, disposal of hollow areas, total loss ratio total impoverishing ratio