Numerical and Similarity Simulation Study on the Protection Effect of Composite Protective Layer Mining with Gently Inclined Thick Coal Seam

<div>Vertical stress distribution along the inclined direction in the mining of the rock-coal composite protective layer. (a) Working face is advanced to 40 m; (b) working face is advanced to 120 m; (c) working face is advanced to 200 m.</div>

Shock and Vibration

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Figure 4

Figure 4: Numerical and Similarity Simulation Study on the Protection Effect of Composite Protective Layer Mining with Gently Inclined Thick Coal Seam 

Figure 4 | Numerical and Similarity Simulation Study on the Protection Effect of Composite Protective Layer Mining with Gently Inclined Thick Coal Seam 