Large Deformation Mechanics of Gob-Side Roadway and Its Controlling Methods in Deep Coal Mining: A Case Study

Figure 9

Comparison of roadway deformations in both fracturing area and nonfracturing area. (a) Results of the roof to floor convergence without fracturing. (b) Displacement of two sidewalls without fracturing. (c) Results of roof to floor convergence with fracturing. (d) Displacement of two sidewalls with fracturing.

(a)

(b)

(c)

(d)