欢迎访问《金属矿山》杂志官方网站,今天是 分享到:
×

扫码分享

金属矿山 ›› 2012, Vol. 41 ›› Issue (04): 36-39.

• 采矿工程 • 上一篇    下一篇

深部开采围岩应力及变形数值模拟研究

刘炜,张睿冲,杨瑞霞   

  1. 广西大学资源与冶金学院
  • 出版日期:2012-04-23 发布日期:2012-04-26
  • 基金资助:

    * 广西大学博士启动基金项目(编号:DD1330013)。

Numerical Simulation on Deformation Distribution and Stress Distribution of Deep Surrounding Rock Mass

Liu Wei,Zhang Ruichong,Yang Ruixia   

  1. College of Resources and Metallurgy, Guangxi University
  • Online:2012-04-23 Published:2012-04-26

摘要: 随着矿山开采向深部转移,出现的地压问题也日益增多,主要表现为冒顶、片帮及岩爆等。针对出现的这类问题,特别是深埋矿体开采过程中的应力变形,利用FLAC3D程序对实际开采过程进行了模拟,对其应力场及位移场进行分析。模拟结果表明巷道两帮水平变形主要是由垂直应力作用造成的侧向膨胀,而巷道顶底板的垂直变形则主要是水平应力在垂直方向造成的挤压变形。研究结果为巷道支护方案提供了依据.

关键词: 围岩, 应力, 变形, 深部开采

Abstract: With exploitation of the deep ore body, the frequency of roof collapse and rib fall ascends. In order to solve this problem, the excavation process of the deep mine was simulated using FLAC3D. The stress field and displacement field were analyzed. The numerical results show that the horizon displacement is resulted by the vertical stress, and the vertical displacement is resulted by the horizon stress. It provides theory basis for the tunnel supporting design.

Key words: Surround rock mass, Stress, Deformation, Deep mine