新疆伊北矿区典型浅埋深厚煤层开采地面沉陷机理研究
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摘要
新汶矿业集团伊犁四号矿井深处新疆伊北矿区,主要可采煤层上覆易冒落的不稳定顶板,无厚而坚硬的基本顶存在,属于典型浅埋深厚煤层开采矿井。为研究该矿区地面沉陷机理和相应的运动参数,全面掌握采空区对地面的影响,采用理论分析、模拟计算、数据实测和位移反分析理论相结合的方法,通过浅埋深大采高采煤工艺对本矿区地表产生的裂隙及沉陷,分析了地表沉陷机理,得出了"三带"观测参数和伊北矿区地表沉陷变形静态盆地的岩移参数,并为伊北矿区"三下"采煤提供有参考价值的技术参数。
No. 4 mine deep in Yibei mining area of Xinwen Mining Group Yili, the main recoverable coal seam was covered with unstable roof prone to caving, without thick and hard basic roof, which is a typical shallow buried deep coal seam mining mine. For the study of the mining area land subsidence mechanism and the corresponding parameters of motion, the influence of the theoretical analysis and simulation calculation, the measured data and the theory of displacement back analysis method of combining the shallow buried and deep coal seam large mining height were analyzed to study the mechanism of surface subsidence, it was concluded that the "three zones" observation parameters and static basin, north mining surface subsidence deformation of rock movement parameters, providing the north mining area "three under" mining technical parameters with reference value.
No. 4 mine deep in Yibei mining area of Xinwen Mining Group Yili, the main recoverable coal seam was covered with unstable roof prone to caving, without thick and hard basic roof, which is a typical shallow buried deep coal seam mining mine. For the study of the mining area land subsidence mechanism and the corresponding parameters of motion, the influence of the theoretical analysis and simulation calculation, the measured data and the theory of displacement back analysis method of combining the shallow buried and deep coal seam large mining height were analyzed to study the mechanism of surface subsidence, it was concluded that the "three zones" observation parameters and static basin, north mining surface subsidence deformation of rock movement parameters, providing the north mining area "three under" mining technical parameters with reference value.
引文
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