3306-1充填工作面岩移观测技术研究

Research on Rock Movement Observation Technology for the 3306-1 Filling Working Face

煤炭开采造成的地表沉降威胁矿区的生态环境和财产安全,对井下开采的安全性造成了一定的影响。为了研究矿井充填工作面开采引起的地表移动、变形以及对地面建筑物的影响,在矿区建立地表移动变形观测站,通过地表变形监测研究地下开采导致的地表变形规律,对未来地表移动变形进行准确预计,对工作面地表移动角和变形值的观测、统计和分析,获得了充填开采对地表移动影响的关键数据,得出监测点最大下沉值为58 mm,区域内“异常凸起”最大抬升高度为76 mm,为研究膏体充填采矿技术条件下的地表移动变形规律奠定了基础,有助于对地表建筑物的墙体变形和损害提供技术依据。

The surface subsidence caused by coal mining poses a threat to the ecological environment and property safety of mining areas,and has a certain impact on the safety of downhole mining.In order to study the surface movement,deformation,and impact on surface buildings caused by filling working face mining in mines,a surface movement and deformation observation station is established in the mining area.Through surface deformation monitoring,the surface deformation law caused by downhole mining is studied,and accurate prediction of future surface movement and deformation is made.Key data on the impact of filling mining on surface movement are obtained through observation,statistics,and analysis of the surface movement angle and deformation value of the working face.The maximum subsidence value of the monitoring point is 58 mm,and the maximum lifting height of the"abnormal bulge"in the area is 76 mm.This lays the foundation for studying the surface movement and deformation laws under the condition of paste filling mining technology,and helps to provide technical basis for the wall deformation and damage of surface buildings.