Study and Application on Precontrolling of Roof and Sublevel Open-slope Mining with Subsequent Filling Method for Fractured Surrounding Rock
Received:January 26, 2018  Revised:March 01, 2018
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KeyWord:Fractured Surrounding Rock; Precontrolling of Roof and Sublevel Open-slope Mining with Subsequent Filling Method;Filling ratio.
  
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DONG Guo-qiang 招金矿业股份有限公司大尹格庄金矿
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Abstract:
      In view of the difficulties in the poor stability of the fractured surrounding rock and the violent appearance of the deep mine pressure, and combined with the existing mining technology in Dayingezhuang gold, Proposed Precontrolling of Roof and Sublevel Open-slope Mining with Subsequent Filling Method . On the basis of technical characteristics, construction technology and key technology about Precontrolling of Roof and Sublevel Open-slope Mining with Subsequent Filling Method,Orthogonal experiment is used to optimize the ratio of filling material.Optimization design of stope structural parameters by combining theoretical analysis with numerical simulation. Practice shows that the precontrolling of roof backfilling technology segment has been widely used in various mines, significant benefits.
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