煤炭工程 ›› 2013, Vol. 45 ›› Issue (6): 73-75.doi:

• 研究探讨 • 上一篇    下一篇

高应力软岩硐室加固技术及应用

张玉江1,邱守强2   

  1. 1. 山东科技大学研究生学院
    2. 兖矿集团济宁三号煤矿
  • 收稿日期:2012-07-23 修回日期:2012-08-14 出版日期:2013-06-10 发布日期:2013-06-10
  • 通讯作者: 张玉江 E-mail:ylczyj@yeah.net

Reinforcement Technique and Application of Weak Rock Cavern Group with High Ground Pressure

  • Received:2012-07-23 Revised:2012-08-14 Online:2013-06-10 Published:2013-06-10

摘要: 摘 要:论文基于深部高应力软岩硐室围岩稳定性的几种影响因素,提出软岩加固理念。通过高预应力高位恒阻让压技术、分步注浆技术在该矿硐室的组合应用,实测结果表明:按设计方案实施加固后,硐室围岩两帮、顶板、底板变形量分别减少了82.5%、25%和88.9%。

关键词: 关键词:高应力, 软岩硐室, 应力状态控制, 支护技术

Abstract: Abstract: Based on the factors which influence the surrounding rock stability of the deep high-stress weak rocks cavern, we proposed the reinforcement concept of the deep high-stress weak rock.The high prestress constant resistance to high surrounding rock pressure yieldable support technology and step-by-step coupling grouting technology have been composition applied. The measured results show that the displacement shrinkage of the the cavern group’s surrounding rocks’ sidewalls, roof and floor each reduce to 82.5%、25%and 88.9%, after the application of the design proposal.

Key words: Keywords: high pressure, weak-rock carvrn, control of stress state, support technology