In order to solve the problem of stress concentration and intensified roadway deformation and damage caused by small coal seam spacing in close range coal seam group during actual mining,based on the analysis of the basic geological conditions and roadway layout of the 2-2#coal seam,the actual situation of the roadway in the working face is mastered through investigation and research,and support standards are divided according to the three situations where the coal seam spacing is less than 1 m,1～3 m,and greater than 3 m,Finally,monitor the data of the subsidence of the working face roof and the displacement of the two sides after support to verify the support effect.
关键词
近距离煤层/锚网梁/工字钢/锚索/巷道变形
Key words
close range coal seam/anchor mesh beam/Ⅰ-beam/anchor cable/roadway deformation
维普
万方数据