Numerical analysis of inter-panel pillars in the bump prone conditionals of the Alardinskaya mine

The purpose of the paper is to substantiate width barrier and yield pillars for application a new seam development scheme in conditions Alardinskaya mine (Russia). develops gas-bearing coal seams that are prone spontaneous combustion hazardous due rock bumps, which leads frequent accidents. analysis world experience mining being bumps showed safe with longwalls can be provided by system inter-panel pillars: very wide pillar two pillars. Numerical modeling using finite element method was carried out assess possibility reducing order decrease volume losses subsoil. model massif created Ansys mechanical software. longwall panel at various widths broad outcomes vertical stresses diagrams presented different parts panel. rational parameters system, ensuring minimization reference pressure influence from previously worked-out column operating longwall, determined as result numerical analysis. conclusion made about expediency technological proposed authors reduce endogenous fire hazard danger bumps.