Numerical Study of Damage to Rock Surrounding an Underground Coal Roadway Excavation

Figure 10

Evolution of displacement. (a) 100-step displacement cloud chart; (b) 300-step displacement cloud chart; (c) 500-step displacement cloud chart; (d) 1000-step displacement cloud chart; (e) 3000-step displacement cloud chart; (f) 5000-step displacement cloud chart and the displacement vector; (g) local enlargement of 5000-step displacement cloud chart and the displacement vector.