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 ›› 2014, Vol. 43 ›› Issue (07): 156-159.

• 安全与环保 • 上一篇    下一篇

深部开采巷道围岩稳定性监测及分析

任奋华,王永强,李正胜   

  1. 北京科技大学土木与环境工程学院,北京 100083
  • 出版日期:2014-07-15 发布日期:2015-01-08
  • 基金资助:

    * “十二五”国家科技支撑计划项目(编号:2013BAB02B08),国家自然科学基金重点项目(编号:51034001)。

Monitor and Analysis of Surrounding Rock Stability in Deep Mining

Ren Fenhua,Wang Yongqiang,Li Zhengsheng   

  1. School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 100083,China
  • Online:2014-07-15 Published:2015-01-08

摘要: 随着三山岛金矿开采深度不断增加,地应力增大、地温升高、涌水量和净水压力增大,巷道围岩的变形破坏日益严重,冒顶和片帮等突发工程事故发生几率增加,作业环境恶化和生产成本急剧增加等一系列问题突出。为了及时掌握深部巷道围岩的稳定性,在-555 m水平巷道布置3个断面收敛计、2个多点位移计、4个钻孔应力计,分别对巷道的表面位移、深部位移、围岩压力进行监测。通过采集和分析监测数据,及时准确地对巷道的围岩稳定性做出评价,为矿山的安全高效生产提供科学指导。

关键词: 监测, 巷道, 深部开采, 围岩稳定性

Abstract: With the mining depth increasing of Sanshandao Gold Mine,increase of geo-stress,geo-temperature,water inflow and water purification pressure make the damage and deformation of surrounding rock more and more serious.A series of problems outstand,such as occurrence probability increase of roof falling,wall caving and other sudden engineering accidents,deterioration of work environment and a sharp increase of production costs.In order to timely grasp the surrounding rock stability in deep mining,three instruments of tunnel convergence measurement,two multi-point extensometers and four borehole stress meters are arranged in -555 m horizontal tunnel,to respectively monitor surface displacement,deep displacement and surrounding rock pressure of tunnel.By collecting and analyzing monitoring data,the stability of tunnel country rock is accurately evaluated in time,which provides a scientific guide for safe and efficient production of the mine.

Key words: Monitoring, Tunnel, Deep mining, Surrounding rock stability