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Metal Mine ›› 2016, Vol. 45 ›› Issue (08): 134-137.

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Treatment Technology of Complex Goaf Group with Low-value Ore-body

Liu Hailin1,2，Zhang Chengzhou3，Wang Xing1,2   

  1. 1.Sinosteel Maanshan Institute of Mining Research Co.，Ltd.，Maanshan 243000，China；2.State Key Laboratory of Safety and Health for Metal Mines，Maanshan 243000，China；3.Administration of Work Safety Supervision of Qingyang County，Qingyang 242800，China
  • Online:2016-08-15 Published:2016-08-31

Abstract: The goaf volume in calcite mine of Lailong mining area has reached 3,500,000 m3，and the low value of orebody results in contradiction between the management and security of goaf and the economy.In order to effectively control the mined-out area，3D model for 3,500,000 m3 of goaf was established based on 3D measurement，and then the engineering geology of the mining area was investigated.Based on evaluation on the stability of mined-out area，the continuous monitoring system for surrounding rock's stability in goaf was developed and has been widely applied in treatment of goaf.

Key words: Low-value ore-body, Goaf sealing, Stability monitoring