煤炭工程 ›› 2018, Vol. 50 ›› Issue (5): 71-74.doi: 10.11799/ce201805020

• 生产技术 • 上一篇    下一篇

纳林河二号矿井采动影响下强矿压显现规律研究

李树仁1,王翰秋1,王颜亮2,孔贺3,韩刚1   

  1. 1. 中煤能源研究院有限责任公司
    2. 北京安科兴业科技股份有限公司
    3. 山东科技大学
  • 收稿日期:2017-12-18 修回日期:2018-02-01 出版日期:2018-05-20 发布日期:2018-06-14
  • 通讯作者: 王翰秋 E-mail:whq32001@vip.qq.com

Study on the Characteristics of Accidents with Strong Mine Pressure under the Influence of Coal Mining in Nariin Gol No. 2 Coal Mine

  • Received:2017-12-18 Revised:2018-02-01 Online:2018-05-20 Published:2018-06-14

摘要: 根据纳林河二号矿井31102工作面实际情况划分了强矿压显现的危险区域,并且实现了对31102工作面强矿压显现的动态实时监测。通过理论模型分析了工作面超前支承压力分布规律。基于微震监测系统对上覆岩层时空演化规律进行分析,确定了工作面超前支承压力的影响范围以及采场上方裂隙发育的大致情况。对微震监测系统的数据进行统计分析,探究回采速度与微震事件之间的联系,提出强矿压危险区域的合理推进速度,降低强矿压显现灾害的风险。

关键词: 采动影响, 微震, 强矿压, 支承压力, 推进速度

Abstract: Abstract:With the increase of mining intensity in Dongsheng coal field, the disasters of strong mine pressure appear more and more serious. One of the important points in the prevention of strong mine pressure is to study its characteristics. According to the situation of the working face, the dangerous area of a strong mine pressure accident is divided. And the layout scheme of mine stress and microseismic monitoring system is determined. Thus the dynamic monitoring of the strong mine pressure of No. 31102 working face is realized. According to the theoretical model, the distribution law of advance support pressure of the working face is analyzed. A microseismic monitoring system is used to analyze the roof. Through the analysis of this method, the influence range of the advance support pressure and the development of the crack in the roof are found out. The relationship between production speed and microseismic energy is studied by using the data of monitoring system. The reasonable production speed of dangerous area with strong mine pressure is put forward. Thus, the risk of strong mine pressure disaster is reduced.

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