In studying mining on a steep coal seam, researchers analyzed how the wall rock behaves during the process. They found that coal in the upper layers crumbles more than in the lower layers, with various stages of collapse. Pressure is highest in the middle and upper layers along the coal seam. In large inclined mining areas, it's crucial to secure hydraulic supports and prevent slips and cave-ins. The discovery highlights the importance of ensuring stability and safety measures in coal mining operations on steep seams.