Mechanical Behavior of Loess Tunnels Caused by Surface Water Joints Infiltration

Table 6

Vertical displacement of each working condition after excavation completion (cm).

Feature points	Case 1		Case 2		Case 3		Case 4		Case 5
	Three-step	CRD	Three-step	CRD	Three-step	CRD	Three-step	CRD	Three-step	CRD
1	−7.7	−5.5	−8.8	−8.5	−10.8	−10.5	−10.4	−7.5	−15.2	−12.5
2	−7.4	−5.3	−8.5	−5.5	−9.9	−8	−9.5	−7	−13.5	−11.2
3	−7	−4.7	−7.8	−5	−9	−5.2	−8.8	−6.1	−12	−9.5
4	−6.5	−4.2	−7	−4.5	−8.1	−4.8	−8	−5.5	−10.4	−8.2
5	−3.2	−3.9	−3.3	−4	−3.5	−4.5	−3.8	−5	−5.5	−7.8
6	−0.3	0.5	−0.8	0.7	−0.9	0.7	−0.5	−0.4	−1.5	−0.7
7	2.7	2.9	3.2	2.9	3.2	3.2	3.1	2.6	2.5	2.5
8	2.7	3	3.2	2.8	3.1	3.1	3.4	3.1	11	10
9	−0.3	0.5	−0.8	0.3	−0.9	0.9	−0.5	0.7	2.4	7.8
10	−3.2	−4	−3.3	−4.4	−3.5	−5.5	−2.9	−6.2	−8	−14.1
11	−6.5	−4.5	−7	−5	−8.1	−6	−9.5	−6.7	−19	−14.2
12	−7	−4.9	−7.8	−6	−9	−6.9	−10.2	−7.4	−18	−14
13	−7.4	−5.3	−8.5	−7	−9.9	−8.2	−10.7	−7.8	−17	−14