Research on the Influence of Mining Height on the Movement Characteristics of Overlying Strata during Extremely Thick Coal Seam Fully Mechanized Sublevel Caving Mining

Figure 5

Distribution of damage zones with different mining height. (a) 3 m mining height. (b) 4 m mining height. (c) 5 m mining height. (d) 6 m mining height. (e) 7.5 m mining height.

(a)

(b)

(c)

(d)

(e)