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Metal Mine ›› 2012, Vol. 41 ›› Issue (12): 35-37+49.

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Non-explosive Mining Technology and Engineering Practice of Soft-broken-thin Ore-body

Sun Jie1,Sun Guoquan2,3,4,Yao Xiang5   

  1. 1.Jintingling Company of Zhaojin Mining Industry Co., Ltd.;2.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.;3.State Key Laboratory of Safety and Health for Metal Mine;4. National Engineering Research Center of High Efficiency Cyclic Utilization of Metal Mineral Resources;5.Changchun Gold Research Institute
  • Online:2012-12-15 Published:2012-12-28

Abstract: In view of the adverse conditions in Minxian Tianhao gold company, such as extremely broken and thin ore-body, low grade, high filling costs, disallowed surface collapse etc.and based on the field investigation and mechanical testing, the tunnel-type upward continuous mining with waste rock filling along the strike is obtained, which is appropriate to the ore-body.This mining method has basic features of non-explosive, continuous shipment of broken rocks, drift upward filling with waste rocks, small cutting, high level of mechanization and safety mining.In practical engineering application, the mining rate reaches 90% with dilution rate of 8%.

Key words: Non-explosive mining, Continuous mining, Tunnel type upward filling by rock mining method