Support Design of Close Range Coal Seam Group Mining Roadway
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.
close range coal seamanchor mesh beamⅠ-beamanchor cableroadway deformation
万方数据
维普
