Support Design of Working Face Crossheading in Northern Shaanxi Shallow - buried Coal Seams
Abstract：Taking 1403 coal face of a mine in northern Shaanxi as background, three different support schemes of crossheading are put forward according to different buried depths and coal seam intervals. Applying FLAC simulation software, this paper establishes rele- vant calculating model, analyzes erossheading stress field and surrounding rock deformation caused by shallow seam mining before and after supporting, combining the result from field monitoring, the deformation laws of crossheading surrounding rocks in the shallow - buried coal seam is obtained. The field test shows that the support schemes according to the different section of crossheading is feasible, which ensures the stability of surrounding rocks of crossheading roadway, meets the requirements of safety production in the coal mine.
Keywords：shallow - buried coal seam groupsupportFLAC simulationdeformation laws of surrounding rockfield monitoring
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-45 )