ABSTRACT
To study the deformation characteristics of the overlying surrounding rock in the floor roadway of Qujiang Coal Mine, the displacement of the surrounding rock at different depths of the fixed roadway was determined. The top is the largest, the top and bottom are 7.5 m, and the top and bottom are the smallest at 15 m. Different depths of the surrounding rock display a pattern of alternating crests and troughs from the outside to inside. The crests with a larger displacement of the surrounding rock are the damaged areas, and the troughs with smaller displacements of the surrounding rocks are non-destructive areas.
