煤炭工程 ›› 2016, Vol. 48 ›› Issue (1): 95-98.doi: 10.11799/ce201601028

• 研究探讨 • 上一篇    下一篇

高头窑矿区地表采动裂缝演化规律研究

闫瑞龙   

  1. 中国矿业大学 矿业工程学院 煤炭资源与安全开采国家重点实验室
  • 收稿日期:2015-04-05 修回日期:2015-04-28 出版日期:2016-01-10 发布日期:2016-02-01
  • 通讯作者: 闫瑞龙 E-mail:284108332@qq.com

Mining induced ground cracks evolution laws in Gaotouyao mining area

  • Received:2015-04-05 Revised:2015-04-28 Online:2016-01-10 Published:2016-02-01

摘要: 结合色连一号矿8101工作面地貌特征、工作面日推进度及对应地表裂缝实测资料,得出了裂缝在非冲沟和冲沟地表的分布规律:主要以平行于工作面的暂时裂缝和平行于工作面巷道的永久裂缝两种形式存在;非冲沟段地表裂缝较冲沟段多,宽度与深度也大。统计裂缝的各个参数并计算了地表移动超前裂缝角。实测不同地貌下裂缝的发育过程,共同揭示了“裂缝产生—裂缝扩展—台阶下沉—裂缝闭合”的动态演化规律,并针对该矿区地貌特征提出了加强裂缝演化观测、裂缝填埋压实等管理措施。

关键词: 地貌特征, 地表裂缝, 超前裂缝角, 演化规律, 填埋压实

Abstract: Abstract: Combined with the geomorphology、daily mining distance and observation of ground crack of 8101 working face in 1# Selian mine, the paper deduces the distribution law of cracks both in gully and plain area. There are two existence forms of cracks: one is temporary along working face; another is permanent along working face roadways. The ground cracks in plain are much wider and deeper than those in gully area. The surface movement advance crack angle is calculated based on the cracks statistical parameters. Measuring crack development in different landforms, the paper reveals “crack generation-crack extension-sidestepped subsidence-crack closure” dynamic evolution rule. Aimed at geomorphic features in this mining area, the paper also proposes many control measures such as strengthening the observation of cracks evolution and cracks landfill compaction.

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