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Metal Mine ›› 2016, Vol. 45 ›› Issue (01): 17-20.

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Study on Development Principle of Multiple Resources Opencast Engineering

Gao Shiyou1,2,Cai Qingxiang2,Li Jiabin1,2,Zhou Wei1,2,Liu Yunxiao1,2,Wang Jinhui1,2   

  1. 1.School of Mines,China University of Mining &Technology,Xuzhou 221116,China;2.States Key Laboratory of Resources and Safety Mining,Xuzhou 221116,China
  • Online:2016-01-15 Published:2016-03-11

Abstract: It is essential for the mining development speed to mine production.The surface mining field mathematical model about horizontal advance speed and mine engineering vertical extension speed is established to study the development principle of multiple resources surface mine engineering.Through analyzing the mining development relationship under three methods of work line propulsion,including advancing along the surface mine bottom,advancing along the ore body bottom and advancing along the roof rock body,the coupling formula of horizontal advancing speed and mine engineering vertical extension speed with different advancing methods was derived.Studies showed that the horizontal advancing speed and mine engineering vertical extension speed of multiple surface resources displayed as a positive correlation.Besides the self reason of the device,optimizing electric shovels working line length,and increasing electric shovels working time are effective ways to improve the development speed of mining engineering and improve the production capacity of surface mine.

Key words: Surface mine, Multiple resources, Mining engineering development, Production capacity