煤炭工程 ›› 2014, Vol. 46 ›› Issue (11): 78-81.doi: 10.11799/ce201411025

• 研究探讨 • 上一篇    下一篇

复杂条件下特大断面巷道深孔强化注浆技术研究

何富连1,薄云山1,时宝2   

  1. 1. 中国矿业大学(北京)资源与安全工程学院
    2. 中国矿业大学(北京)
  • 收稿日期:2013-12-30 修回日期:2014-02-15 出版日期:2014-11-11 发布日期:2014-11-12
  • 通讯作者: 时宝 E-mail:352923556@qq.com

Study on the Deep Hole Grouting Reinforce Technique of Extremely Large-section Roadway Under the Complex Conditions

  • Received:2013-12-30 Revised:2014-02-15 Online:2014-11-11 Published:2014-11-12

摘要:

辛置煤矿马头门巷道在初次施工完毕后出现了较严重的破坏,为了有效治理马头门巷道,本文综合现场实际情况、理论分析和数值模拟等方法,分析了其发生破坏失稳的主要原因,在此基础上提出软弱破碎巷道围岩深孔注浆加固技术,研究确定了深孔注浆机理、注浆参数以及工艺流程,并在现场对巷道进行了有效治理,取得了满意的效果。

关键词: 深孔注浆, 马头门, 特大断面巷道, 软弱破碎围岩

Abstract:

Great damages appeared after the initial construction of ingate at XinZhi Mine was completed. In order to govern the ingate effectively, the actual situation, theoretical analysis and numerical simulation methods were combined in the paper. And then, the main reason of the ingates’ damage and instability was analyzed, based on which, the deep hole grouting reinforce technique of weak and fractured surrounding rocks was proposed. Then the mechanism of deep hole grouting, the grouting parameters and the process were confirmed through the research as well. Finally, effective governance was achieved through taking the technology into actual use.

Key words: deep hole grouting, mine shaft ingate, extremely large-section roadway, weak and fractured surrounding rock