煤炭工程 ›› 2017, Vol. 49 ›› Issue (7): 68-71.doi: 10.11799/ce201707020

• 生产技术 • 上一篇    下一篇

马兰矿近距离煤层开采围岩采动应力分布特征分析

刘春波   

  1. 西山煤电(集团)有限责任公司马兰矿
  • 收稿日期:2017-01-09 修回日期:2017-02-28 出版日期:2017-07-09 发布日期:2017-07-26
  • 通讯作者: 刘春波 E-mail:57010421@qq.com

Analysis on the distribution characteristics of mining stress in surrounding rock with the near distance coal seams in Malan mine

  • Received:2017-01-09 Revised:2017-02-28 Online:2017-07-09 Published:2017-07-26

摘要: 针对马兰矿南五采区近距离煤层开采条件,参考地应力测试结果,建立数值模型,采用FLAC3D数值模拟方法研究了近距离煤层不同开采条件下形成的采动应力分布特征。同时,基于数值模拟结果,重点分析了近距离煤层上煤层先采后下煤层工作面回采巷道的合理布置方式,研究结果可为类似近距离煤层开采巷道围岩控制提供参考。

关键词: 近距离煤层, 采动应力, 分布特征, 巷道布置

Abstract: According to the near distance coal seams of southern five mining area in Malan mine, taking the means with the stress test results. the distribution characteristics of mining stress of the near distance coal seams with different mining conditions were studied using FLAC3D numerical simulation method. Simultaneously, based on the simulation results, the reasonable layout of gateway in the lower coal seam was selectively analyzed after the upper layer coal seam mined, the reference research results can be a valuable reference to surrounding control for the mining of near distance coal seams. Keyword: near distance coal seams; mining stress; distribution characteristics; layout of gateway

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