Numerical Simulation of Reasonable Layout of Lower Slicing Mining Roadway in Closed Coal Seams

In order to study the problem of reasonable layout of lower slicing roadway in closed coal seams, taking a closed coal seam working face as background, based on the field monitoring, geotechnical numerical simulation software UDEC is used to study the deformation of surrounding rock in different internal malposition. Through analysis, the study got the deformation laws of surrounding rock and identified the reasonable layout of 10^# coal roadway.