Numerical Simulation of Deformation and Failure of Drainage Boat Pond Caused by Underground Coal Mining-Induced Subsidence

Figure 6

Displacement cloud diagram of unreinforced boat pond at different advancement distances: (a) advance 250 m; (b) advance 500 m; (c) advance 750 m; (d) advance 1000 m.

(a)

(b)

(c)

(d)