煤炭工程 ›› 2019, Vol. 51 ›› Issue (2): 42-45.doi: 10.11799/ce201902010

• 施工技术 • 上一篇    下一篇

采掘交锋巷道围岩稳定机理及控制技术研究

张文阳   

  1. 太原理工大学采煤工艺研究所
  • 收稿日期:2018-03-26 修回日期:2018-05-19 出版日期:2019-02-20 发布日期:2019-03-19
  • 通讯作者: 张文阳 E-mail:zhangwenyang1986@163.com

The research on Stability Mechanism and Control Technology of Surrounding Rocks in Extractive Collision

  • Received:2018-03-26 Revised:2018-05-19 Online:2019-02-20 Published:2019-03-19

摘要: 基于采掘交锋条件下巷道围岩稳定性的控制问题,通过分析采掘交锋巷道应力分布特征以及现场工程实例,对采掘交锋巷道掘进过程中不同阶段的围岩稳定性进行了研究。结果表明:“合理的煤柱宽度、精准的停掘位置、分区域的动态支护”是有效控制采掘交锋条件下综采工作面与巷道围岩稳定性的关键点。临空掘进巷道在与回采工作面相交前,可在动压掘巷阶段的顶板移动性三角形塑性破坏区出现以前停掘|与回采工作面相交后,可在动压掘巷阶段的顶板移动性三角形塑性破坏区稳定后方可开掘。

关键词: 采掘交锋, 巷道应力, 变形机理, 控制技术

Abstract: The impact of dynamic pressure on mining face-up roadway is great, and it is easy to break.. It is based on the analysis of the stability mechanism of the surrounding rock in the mining face-up roadway, this paper divides the excavation into three stages: solid coal face-up roadway, dynamic pressure face-up roadway and along the stable goaf-up roadway. Accurately grasp the time to stop digging; Segmental dynamic control. The results of this study have some reference value for the study of deformation management of mining encounter roadway under similar conditions.

中图分类号: