Flowchart of DEM Modeling Stability Analysis of Large Underground Powerhouse Caverns

Figure 9

Caverns and tunnels in the Qiongzhong underground complex (a). The support system installed in the powerhouse cavern, and the monitoring points used in the numerical simulation are also shown (b). Twenty penetrated anchor bolts designed, demonstrated from two perspectives (c). The installation of 8 anchor cables has been canceled (d).

(a)

(b)

(c)

(d)