摘要
针对近距离煤层群采空区自然发火隐蔽高温区难以识别问题,采用分布式光纤温度探测技术对火源高温点监测,以及井下近距离抽气的束管探测技术对气体异常点监测。根据近距离煤层群开采遗煤分布特征及漏风规律,布置符合现场实际情况的气体测点,通过现场观测结果研究了采空区内温度分布及气体分布规律。结果表明:光纤测温结合近距离束管抽气的方法能较全面地监测近距离煤层群开采上覆煤层自燃关键参数变化,同时对类似矿井火区探测研究具有较好的借鉴意义。
In order to solve the difficulty problems that contiguous coal seam group goaf spontaneous combustion conceal high tempera- ture could not distinguished easily, and then distributed optical fiber temperature measurement technology was applied in fire source high temperature monitoring, and gas outlier was monitored with underground contiguous gas extraction tube bundles detection technol- ogy. According left-over coal distribution characters and ventilation leakage law of contiguous coal seam group mining, and the test points that conformed the practical situation was layout, and goal temperature distribution and gas distribution law were studied accord- ing observation results in field. The results showed that overlying coal seam spontaneous key parameters of contiguous coal seam group mining could be monitored fully with compound method of optical fiber temperature measurement and contiguous tube bundles, and it references for similar situation.
出处
《煤矿开采》
北大核心
2017年第2期96-99,共4页
Coal Mining Technology
基金
国家重点研发计划:煤矿重大灾害感知技术和装备(2016YFC0801804)
关键词
近距离
煤层群
上覆煤层
采空区
火区探测
contiguous
coal seam group
overlying coal seam
goaf
fire detection
