The Effect of Joint Damage on a Coal Wall and the Influence of Joints on the Abutment Pressure on a Fully Mechanised Working Face with Large Mining Height

<div>Comparison of numerical and theoretical results at different azimuth angles (a) α = 45° and β = 15°. (b) α = 45° and β = 30°. (c) α = 45° and β = 60°. (d) α = 45° and β = 75°. (e) α = 70° and β = 30°. (f) α = 70° and β = 60°.</div>

Shock and Vibration

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Figure 3

Figure 3: The Effect of Joint Damage on a Coal Wall and the Influence of Joints on the Abutment Pressure on a Fully Mechanised Working Face with Large Mining Height 

Figure 3 | The Effect of Joint Damage on a Coal Wall and the Influence of Joints on the Abutment Pressure on a Fully Mechanised Working Face with Large Mining Height 