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Metal Mine ›› 2012, Vol. 41 ›› Issue (01): 47-50.

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Numerical Analysis of the Influence on the Subsidence of Subsided Backfilling Body by Underground Mining

Ma Jun1,2，Xu Mengguo1,2，Wang Ping1,2，Li Yan1,2， Li Bin1,2   

  1. 1.College of Resources and Environment Engineering,Wuhan University of Science and Technology；2.Key Laboratory of Hubei Province for High-Efficient Use of Metallurgical Mineral Resources and Agglomeration
  • Online:2012-01-11 Published:2012-01-11

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Abstract: Numerical simulation analysis was conducted using UDEC for the laws of surface backfilling body by mining underground ore body.The results showed that the phenomenon of displacement in backfilling area was “the middle is bigger than both ends” and the top of the subsidence was particularly significant in backfilling area just above the ore body and there were “V-shaped” emergence basin in the backfilling area，the biggest subsidence value about 32 m.Simulation and forecast the motion laws of the backfilling body correctly caused by underground mining using UDEC，It is important to guide safety backfilling work smoothly.

Key words: Universal distinct element code, Laws of subsidence, Subsided backfilling body, Safety in backfilling