南阳矿山区下开采地表移动变形规律研究

    Law of Surface Movement and Deformation Caused by Mining at Mountainous Field of Nanyang Coal Mine

    • 摘要: 为研究南阳矿山区下开采地表移动变形规律,在3202工作面及3208工作面上方布置地表移动观测站,分析实测数据,得到地表移动变形特征及动态移动参数,并理论分析建筑物位于山区不同地貌特征点时受采动滑移影响。结果表明,南阳矿山区下开采与平原地区相比,地表移动规律整体上较为接近,因地形起伏变化,采动滑移对变形参量产生明显影响;该矿超前影响距为127 m,超前影响角为59.6°;位于山顶位置的建筑物相比谷底、山腰处受采动滑移影响较小,有利于建筑物的保护。

       

      Abstract: In order to study the law of surface movement and deformation caused by mining field of Nanyang Coal Mine, the surface observation stations were arranged above 3202 and 3208 working faces, and the observation data was analyzed. The features of surface movement and deformation and dynamic movement parameters were obtained. The influence of mining slippage on buildings located at different geomorphological feature points in mountainous areas was theoretically analyzed. The results showed that the law of surface movement caused by mining at mountainous field of Nanyang Coal Mine was similar to that in plain area on the whole. Because of the change of topographic fluctuation, mining slippage had obvious influence on deformation parameters; the advance influence distance was 127 meters, and the advance influence angle was 59.6 degrees; the buildings located at the top of the mountain were less affected by mining slippage than those at the valley floor and the mountain side, which was beneficial to the protection of buildings.

       

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