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金属矿山 ›› 2015, Vol. 44 ›› Issue (06): 134-138.

• 安全与环保 • 上一篇    下一篇

玲珑金矿深部开采岩爆分析

张子健1,2,纪洪广1,2,张月征1,2,陈志杰1,2,宋朝阳1,2   

  1. 1.金属矿山高效开采与安全教育部重点实验室,北京 100083;2.北京科技大学土木与环境工程学院,北京 100083
  • 出版日期:2015-06-15 发布日期:2015-08-05
  • 基金资助:

    * 国家自然科学基金项目(编号:51174015),国家重点基础研究发展计划(973计划)项目(编号:2010CB226803)。

Analysis of Rock Burst in Deep Mining of Linglong Gold Mine

Zhang Zijian1,2,Ji Hongguang1,2,Zhang Yuezheng1,2,Chen Zhijie1,2,Song Zhaoyang1,2   

  1. 1.State Key Laboratory of High-Efficient Mining and Safety of Metal Mines Ministry of Education,Beijing 100083,China;2.School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 100083,China
  • Online:2015-06-15 Published:2015-08-05

摘要: 在金属矿山的深部开采过程中,岩爆的问题时有发生,现阶段对于岩爆问题的致灾原因分析主要集中在高地应力的领域,具有一定的局限性。通过引入能量指标以及冲击危险性应力指标,将岩石自身性质以及岩体所处应力状态等指标引入,丰富了岩爆研究的参数。借助FLAC3D数值分析手段,对玲珑金矿未来深部开采过程中可能面临的岩爆问题进行模拟研究,,初步确定了玲珑金矿岩爆的危险性指数以及岩爆释放能量的大小,明确了岩爆的发生范围,并与现场的实地情况进行对比,较好地吻合了现场的实际情况,这也为玲珑金矿的安全生产、下一步的回采工作及岩爆的安全控制提供了依据。

关键词: 能量指标, 冲击危险, 深部开采, 数值建模

Abstract: The rock burst often happens in the procedure of deep mining in the metal mine.Studies on the reasons for the rock burst mainly focus on the high in-situ stress field with some limitations.In this study,the energy index and the stress index of shock hazard were introduced with consideration of rock properties and the state of the rock,enriching the parameters of studying rock burst.With the use of FLAC3D numerical simulation method,the problem of rock burst in deep mining in Linglong gold mine was simulated.Then,the risk for rock burst,the volume of the released energy and the scope of rock burst were primarily determined,which was in accordance with the actual situation after comparison.Therefore,this method can provide the basis for safe production and the following stoping in Linglong gold mine.

Key words: Energy index, Rockburst hazard, Deep mining, Numerical modeling