Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line during Top Coal Caving

<div>Variation trends of coal and gangue discharge. (a) Variation trend of coal discharge. (b) Variation trend of gangue discharge.</div>

Shock and Vibration

Figure 7: Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line during Top Coal Caving 