煤炭工程 ›› 2014, Vol. 46 ›› Issue (7): 81-84.doi: 10.11799/ce201407027

• 研究探讨 • 上一篇    下一篇

孤岛仰采工作面煤壁片帮分析与治理

李立1,张世青2,赵健健1,张春雷1   

  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:2013-10-30 修回日期:2013-12-29 出版日期:2014-07-10 发布日期:2014-08-01
  • 通讯作者: 李立 E-mail:611454449@qq.com

Analysis and control of rib fall of coal wall of isolated up-dip mining face

  • Received:2013-10-30 Revised:2013-12-29 Online:2014-07-10 Published:2014-08-01

摘要:

摘要:梧桐庄矿182309工作面是孤岛仰采工作面,仰采角度大,矿压显现明显,煤壁极易片帮。针对以上问题,以梧桐庄矿182309工作面为工程背景,采用FLAC3D和UDEC数值模拟软件模拟分析了工作面周围的应力分布情况和煤壁片帮情况。在此基础上,工作面采用了超前预注浆加固技术措施,有效地控制了煤壁片帮现象。

关键词: 关键词:孤岛工作面, 仰采, 数值模拟, 煤壁片帮

Abstract:

Abstract:WuTongZhuang No.182309 mining face was an isolated up-dip mining face with the angle of the mining face wide , the strata pressure violent and the phenomenons of rib fall of coal wall frequent. In view of these problems, taking WuTongZhuang No.182309 mining face as project background,the condition of the stress near the mining face and the rib of coal wall were analyzed by use of numerical simulation software FLAC3D and UDEC. Based on the above study results, the mining face adopted a scheme of pre- grouting which effectively controled the phenomenon of the rib fall of coal wall.

Key words: Key words: isolated mining face, overhand mining, numerical simulation, rib fall of coal wall