皖北矿区河流下煤炭安全开采技术

    Coal Safety Mining Technology Under Rivers in Wanbei Mining Area

    • 摘要: 通过皖北矿区河流下采煤研究和实践,提出了河堤沉陷预测、堤顶高程、堤防抗滑稳定的计算方法以及从单一煤层、单一工作面到多煤层、多工作面开采堤体、堤体加固、堤坝裂缝处理、堤坝迎水坡防浪等技术措施。同时总结出了河流下采煤减少地表变形和河堤加固相应措施,为今后本矿区获类似条件矿区河流下采煤提供借鉴。

       

      Abstract: Through the research and practice of the coal mining under rivers in Wanbei mine area,this paper proposed the calculation methods of riverbank subsidence prediction,embankment top elevation and stability against sliding.The technical measures of mining embankment body from a single coal seam,a single face to the multi-seam,multi-face,reinforcing embankment body,processing dam cracks,preventing wave in riverside slope were put forward.Meanwhile,the appropriate measures of reducing the surface deformation and reinforcing embankment of the coal mining under rivers were summed up,which provided reference for the future coal mining under rivers with similar conditions of this mining area.

       

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