Grouting Treatment and Parameters Optimization in Watery Karst Areas of High Speed Railway Tunnel Based on Comprehensive Geological Forecast: A Case Study

Figure 7

Vertical displacement cloud of the tunnel: (a) no grouting, (b) grout 1 m, (c) grout 3 m, (d) grout 5 m, (e) grout 7 m, and (f) grout 9 m.

(a)

(b)

(c)

(d)

(e)

(f)