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

Table 1

Model design table.

Buried depth (m)	Clear distance
	0.25 D	1.00 D	1.50 D	2.00 D	2.50 D	3.00 D
6	Model 6-1	Model 6-2	Model 6-3	Model 6-4	Model 6-5	Model 6-6
12	Model 12-1	Model 12-2	Model 12-3	Model 12-4	Model 12-5	Model 12-6
18	Model 18-1	Model 18-2	Model 18-3	Model 18-4	Model 18-5	Model 18-6