Numerical Simulation on Dynamic Response of Existing Tunnel to Moving-Axle Loads under the Influence of Oblique Shield Crossing the Intersection Area

Figure 12

Peak displacement of observation points on existing tunnel: (a) shield excavation reaches the 38^th ring on the right; (b) shield excavation reaches the 52^th ring on the right; (c) shield excavation reaches the 67^th ring on the right.

(a)

(b)

(c)