摘要
为了研究在综放开采条件下覆岩导水裂隙带高度的发展规律,以焦坪矿一盘区1418工作面为地质原型,应用经验公式计算并结合现场实测数据、计算机数值模拟(FLAC3D有限差分软件和UDEC离散元软件)和物理相似材料模拟实验方法,对工作面4-2号煤层采动后造成的覆岩变形破坏情况进行分析,并对导水裂隙带发育高度进行预测。研究表明:该矿1418工作面综放开采巨厚煤层覆岩导水裂隙带高度为采厚的近26倍。
In order to deeply research the law of overburden deformation and failure under the condition of full mechanized caving mining, this paper took the first panel 1418 working face of this coal mine as geological prototype, applied the experience formula calcula- tion and combined with the field measured data, the computer numerical simu｜ation （ FLAC3D finite difference software and UDEC dis- crete element software） and similar material of physics experimental methods, analyzed the law of overburden deformation and failure after mining the 4 - 2 coal seam in the face, and predicted the flowing fractured zone height. Research shows that the overburden flowing fractured zone height is nearly 26 times of mining thick in fully mechanized caving mining at giant thick coal seam of 1418 working face in this coal mine.
出处
《煤矿安全》
CAS
北大核心
2015年第B11期22-25,共4页
Safety in Coal Mines
关键词
导水裂隙带
经验公式
数值模拟
物理模拟
水害防治
flowing fractured zone
experience formula
numerical simulation
physical experiment
water disaster prevetion
