DOI: 10.11799/ce201705014
Study on stability of floor roadway under mining influence of close coal seam
LIU Hai-quan
Abstract：In the mining of close distance extra thick coal seams,rib spalling and floor heaving often happen in working face transportation roadway.Theoretical analysis and field monitoringare carried out to investigate the deformation and fracture behaviors of floor roadway.Fracture depth of floor working face under mining influence,and the influence range and extent abutment pressure has on floor roadway are obtained.This research can provide some references for layout and support design of floor roadway under the mining influence of c close distance extra thick coal seams.
Keywords：close distanceextra thick coal seammining influencefloor roadway
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 44-46,50 )