Mechanism and Integrated Control of “Rib Spalling: Roof Collapse—Support Instability” Hazard Chains in Steeply Dipping Soft Coal Seams
Figure 2
Disasters in the SDCS working face. (a) Spalling and roof collapse [15]. (b) Falling of gangues between supports [15]. (c) Spalling-caused overturning of the working face equipment.