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金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 27-30.

• 采矿工程 • 上一篇    下一篇

大盘区高应力下矿柱回采稳定性数值模拟

郭伟1,2,张传信1,2,赵继银1,2   

  1. 1.中钢集团马鞍山矿山研究院有限公司;2.金属矿山安全与健康国家重点实验室
  • 出版日期:2013-05-15 发布日期:2013-06-08

Numerical Simulation Research on Pillar Stope Stability Under High Stress Conditions in Big Panel

Guo Wei1,2,Zhang Chuanxin1,2,Zhao Jiyin1,2   

  1. 1.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.;2.State Key Laboratory of Safety and Health for Metal Mine
  • Online:2013-05-15 Published:2013-06-08

摘要: 在对大团山-580 m中段以上现场地质调查及矿岩取样的基础上,为尽可能地利用现有采准系统,在空区不进行前期充填的情况下,采用FLAC3D数值模拟手段,以回采宽度划分回采方案,对大空区高应力条件下盘区矿柱的部分或全部回采进行稳定性分析,研究矿柱内部应力及位移变化规律,结合前期的岩石力学理论分析,得出最优方案,保证回采工作的顺利进行。

关键词: 大盘区, 高应力, FLAC3D, 数值模拟, 矿柱回采

Abstract: Based on the geological survey and samplings above the Datuanshan middle -580 m,and in order to make full use of the current mining preparation system,it is planning to make the stoping scheme based on the stoping width by means of FLAC3D Numerical simulation without the gob backfilling. Then,the stability analysis is made for parts of or all stopes at the lower panel under high stress conditions. Through research on the internal stress and displacement rule of the pillar,and combining with the early rock mechanics theory,the optimum scheme is got to ensure the smooth mining.

Key words: Big panel, High stress, FLAC3D, Numerical simulation, Pillar recovery