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 15

Model section of joints with different parameters in a coal seam. (a) Model A. (b) Model B. (c) Model C. (d) Model D. (e) Model E. (f) Model F. (g) Model G. (h) Model H. (i) Model I.

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