Settlement Prediction Method of Extra-Large Diameter Tunnels in Soft Rock Strata

Table 4

Settlement of tunnel vaults with different buried depths (unit: cm).

Excavation distance between measuring point and tunnel face	Tunnel depth
	27.5 m	37.5 m	47.5 m	57.5 m
2.4	0.4231	0.5273	0.7552	1.4525
4.8	0.8311	0.8854	1.4032	2.0440
7.2	1.2199	1.5173	2.0423	2.5592
9.6	1.4970	1.9969	2.4668	2.9874
12.0	1.7212	2.3498	2.7917	3.3329
14.4	1.9092	2.6398	3.0572	3.6209
16.8	2.0698	2.8854	3.2789	3.8639
19.2	2.2092	3.1006	3.4693	4.0741
21.6	2.3313	3.2904	3.6357	4.2584
24.0	2.4391	3.4622	3.7832	4.4226
26.4	2.5352	3.6172	3.9160	4.5708
28.8	2.6212	3.7603	4.0385	4.7084
31.2	2.6982	3.893	4.1529	4.8372
33.6	2.7679	4.0198	4.2598	4.9585
36.0	2.8339	4.1427	4.3650	5.0780
38.4	2.8966	4.2671	4.4704	5.1994
40.8	2.9608	4.4078	4.5898	5.3416
43.2	3.0421	4.5884	4.7362	5.5051
45.6	3.1057	4.6916	4.8214	5.6072
48.0	3.1671	4.7976	4.9045	5.6795