Numerical analysis of stress distribution and deformation and failure characteristics of surrounding rock in coal road excavation

Abstract

In order to further provide a basis for determining the reasonable sealing depth of the coal seam drainage hole, based on the geological data of the W33011 working face of Sihe Mine, the FLAC3D numerical simulation software is used to analyze the stress, displacement, and plastic zone of the surrounding coal body after the excavation of the W33011 roadway in Sihe Mine. And the distribution law of vertical stress, horizontal stress, vertical displacement, horizontal displacement and elastoplastic failure characteristics of the coal body around the roadway are obtained.