煤炭工程 ›› 2013, Vol. 45 ›› Issue (9): 31-32.doi: 10.11799/ce201309012

• 施工技术 • 上一篇    下一篇

大跨距高帮厚泥岩顶板换装硐室支护设计

杨彦宏   

  1. 中煤国际工程集团北京华宇工程有限公司
  • 收稿日期:2013-05-26 修回日期:2013-07-05 出版日期:2013-09-10 发布日期:2013-09-10
  • 通讯作者: 杨彦宏 E-mail:as_4598@163.com

Design and Practice of Support Parameter of Reloading Heading on Large Span and High Rib Thick Mudstone Roof

  • Received:2013-05-26 Revised:2013-07-05 Online:2013-09-10 Published:2013-09-10

摘要:

摘要:在厚泥岩顶板条件下,大跨距高帮硐室存在围岩稳定性差,支护难度大、换装设施的可靠性低等难题。在分析围岩地质条件的基础上,根据相关设计规范,确定合理的支护参数,设计施工方法及工艺。现场施工应用结果表明,换装硐室围岩收敛较小,支护效果良好。

关键词: 大跨距, 高帮, 厚泥岩, 支护参数, 施工方法

Abstract:

Abstract: Under thick mudstone roof circumstance,large span and high rib heading stability of enclosing rock was more inferior,and support was more difficult. Based on analyzing geological conditions of enclosing rock, in accordance with relevant design criterion,reasonable support parameter was determined,then construction methods and technology was designed. The in-situ experiment result showed that enclosing rock of reloading heading appeared less deformation, the support was effective.

Key words: Key words: Large span, High rib, Thick mudstone, Support parameter, Corbel