Abstract:This paper took the 110303 return airway of a certain company as the research object and researched the influence law of working face mining on the stability of roadway surrounding rock. Firstly, the paper investigated the problem of large deformation and long duration of deformation of the roadway gang. Then the horizontal and vertical stresses of the roadway protection coal pillar were taken as the research object, the coal pillar stress division of the roadway was carried out, the stress criterion of the coal pillar stress of the roadway was proposed, and the characteristics of each section are described. According to the characteristics of the surrounding rock deformation of the roadway gangs affected by the mining of adjacent working faces, the evolution characteristics of the coal pillars in the mining roadway were analyzed, and the unsteady zone evolves to the fracture zone, and the mining zone gangs are destroyed when the stability zone evolves to the unsteady zone. The control scheme of anchoring anchor and cable anchoring section and deep stability zone of coal pillar was proposed, and the problem of large deformation of mining roadway was controlled in a targeted manner, which provides theoretical and practical basis for similar engineering conditions.
