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金属矿山 ›› 2013, Vol. 42 ›› Issue (12): 16-19.

• 采矿工程 • 上一篇    下一篇

基于岩体强度理论的巷道围岩稳定性分级

牛少卿1,杨双锁1,2,李义1   

  1. 1.太原理工大学矿业工程学院;2.煤矿灾害动力学与控制国家重点实验室
  • 出版日期:2013-12-16 发布日期:2014-02-11
  • 基金资助:

    * 国家自然科学基金项目(编号:51274145)。

Surrounding Rock's Stability Classification of Roadway Based on Rock Mass Strength Theory

Niu Shaoqing1,Yang Shuangsuo1,2,Li Yi1   

  1. 1.College of Mining Technology,Taiyuan University of Technology;2.State Key Laboratory of Coal Mine Disaster Dynamics and Control
  • Online:2013-12-16 Published:2014-02-11

摘要: 以岩体力学参数和巷道围岩应力场特征为基础,以Mohr-Columb强度准则+Griffith强度准则的联合准则为失稳判别条件,通过理论分析给出了巷道围岩稳定性判别指标及相应的分级标准,并在此基础上给出了各级围岩的建议支护形式。其成果应用于阳煤集团五矿后备区井底车场支护,现场检验证明合理可行。

关键词: 强度理论, 巷道, 围岩, 稳定性, 岩体分级

Abstract: Based on rock mechanics parameters and the stress field feature of surrounding rock of roadway,and taking Mohr-Columb strength criterion + Griffith strength criteria as a joint criteria to judge the instability,the roadway surrounding rock stability judging indexes and the corresponding grading standards are given by theoretical analysis.On this basis,suggestive supporting form of surrounding rock at various levels is proposed,which is applied to the shaft yard support in Back-up Area of No.5 mine in Yangquan Coal Industry (Group) Co.,Ltd..The site tests proved it to be feasible.

Key words: Strength theory, Roadway, Surrounding rock, Stability, Rock mass rating