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现代矿业 ›› 2011, Vol. 27 ›› Issue (3): 6-8.

• 采选工程 • 上一篇    下一篇

五道岭钼矿大规模采空区群失稳复活的数值模拟

刘超1,杨仕教1,王洪武2,乔洪波3   

  1. 1.南华大学;2.湖南风格科技有限公司;3.哈尔滨松江铜业集团
  • 出版日期:2011-03-08 发布日期:2011-03-10

Numerical Simulation on the Instability and Resurrection of Large-scale Mined-out Areain Wudaoling Molybdenum Mine

Liu Chao1,Yang Shijiao1,Wang Hongwu2,Qiao Hongbo3   

  1. 1. University of South China;2. Hunan Style Technology Co.,Ltd;3. Harbin Songjiang Copper Industry Group
  • Online:2011-03-08 Published:2011-03-10

摘要: 五道岭钼矿由于无序开采形成了大规模的采空区群,先后造成了3次大规模的地压活动,大量矿柱失稳破坏。根据现场复杂采空区群的几何形态,建立矿山遗留空区三维数值模型。利用MIDAS对上部采空区及隔离带的应力、位移和塑性区分布特征进行了数值模拟。数值结果表明:五道岭钼矿大规模采空区群必须进行充填处理,否则,极有可能出现失稳复活现象。

关键词: 钼矿, 采空区, 围岩稳定, 数值模拟

Abstract: Large-scale mined-out area are formed in molybdenum mine of Wudaoling due to disorderly exploitation, 3 times of large-scale ground pressure activities are caused one after another, and a great number of pillars were broken. Due to the geometric shape situation of complicated mined-out area, the three dimensional numerical model of mine left behind mined-out area was established. Numerical simulation was done on distribution of stress, displacement and plastic zone of upper mined-out area and isolation strip by MIDAS. The numerical results indicate that the large-scale mined-out area in molybdenum mine of Wudaoling must be filled, otherwise, instability and resurrection phenomenon is extreme possible appear.

Key words: Key words: Molybdenum mine, Mined-out area, Surrounding rock stability, Numerical simulation