煤炭工程 ›› 2020, Vol. 52 ›› Issue (5): 121-125.doi: 10.11799/ce202005026

• 研究探讨 • 上一篇    下一篇

上覆煤层煤柱下采掘工作面应力分布规律研究

周连春,李望,王琰   

  1. 1. 神华乌海能源有限责任公司
    2. 内蒙古科技大学
  • 收稿日期:2019-06-05 修回日期:2019-09-25 出版日期:2020-05-15 发布日期:2020-07-23
  • 通讯作者: 李望 E-mail:136953722@qq.com

Study on stress distribution law of mining face under coal pillar under overlying coal seam

  • Received:2019-06-05 Revised:2019-09-25 Online:2020-05-15 Published:2020-07-23

摘要: 针对回采巷道布置在上覆煤层煤柱下的空间特点,利用FLAC3D数值模拟软件对老石旦煤矿031604综放工作面和031604工作面对接巷道以及上覆的9#、12#煤层的煤柱应力集中区的应力分布情况进行研究,通过数值模拟对上覆煤层煤柱下采掘工作面应力分布规律进行了详细的研究分析,并采取了针对性的防范措施,保证了工作面的安全高效地回采。

关键词: 上覆煤层, 采掘工作面, 应力分布, 应力监测

Abstract: Aiming at the feature that the mining roadway is arranged under the pillar of overlying coal seam,numerical simulation of the stress distribution in stress concentration zone of the 031604 fully mechanized caving face and the 031604 working face the roadway and coal pillars of the overlying 9# and 12# coal seams using FLAC3D numerical simulation technology,through the numerical simulation, the stress distribution law of mining face under coal pillar under overlying coal seam is studied and analyzed in detail and take targeted preventive measures to ensure safe and efficient mining of the work surface.

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