Factor’s Influence Analysis of Frost Heave during the Twin-Tunnel Construction Using Artificial Horizontal Ground Freezing Method

Figure 9

Vertical displacement field of the ground (unit: m). (a) 0.25 D, (b) 1.00 D, (c) 1.50 D, (d) 2.00 D, (e) 2.50 D, and (f) 3.00 D.

(a)

(b)

(c)

(d)

(e)

(f)