Jinchuan 1 # Orebody 850m Middle Of The Plane Of Development System Optimization Study

Jinchuan Co-Ltd is the biggest mineral lands of nickel and cobalt in China. In recent years, with the rapid developping of Jinchuan coltd, the supply of raw material has increasingly become lack. The No.2 mining area, the major mine of Jinchuan coltd, is now confronting many problems. How to solve those problems is a serious topic that engineers and technicians have to face.On the foundation of careful investigation to geological reserves of 1# deep ore-rocks-body in the No.2 mining area, the author studied in detail rock mass geology through the ways of rock quality classification and RMR classification. According to the investigation and the study, the author points out that development operation of -850m level of the No.2 mining area must be designed to lie in plug plate of ore body in the thesis. The plan of the development system, which the paper pointed out, avoids of some problems that the above level had ever confronted. On the condition of current economy and technology, the paper concludes the theoretical principle for investment of -850m level's production by valuing its social and economical benefits.