Influence of Utility Tunnel on the Lower Part of the Existing Double-Track Shield Tunnel in Loess Soil

Table 6

Statistics of circular additional pressure of each case.

Condition	The maximum peak of the additional tension stresses (MPa)	The maximum peak of the additional compression stress (MPa)	The maximum value of the final additional tension stresses (MPa)	The maximum value of the final additional compression stresses (MPa)	H/D	I/D
1	3.32	−2.72	0.501	−0.511	3	3
2	3.15	−2.71	0.491	−0.474	3	3.5
3	2.95	−2.56	0.480	−0.416	3	4
4	2.73	−2.45	0.516	−0.429	3	4.5
5	2.45	−2.24	0.506	−0.401	3	5
6	2.73	−2.06	0.379	−0.359	3.5	3
7	2.65	−2.13	0.375	−0.360	3.5	3.5
8	2.53	−2.12	0.378	−0.360	3.5	4
9	2.38	−2.07	0.386	−0.366	3.5	4.5
10	2.24	−1.97	0.415	−0.350	3.5	5
11	2.40	−1.58	0.290	−0.259	4	3
12	2.12	−1.66	0.270	−0.305	4	3.5
13	2.03	−1.71	0.233	−0.332	4	4
14	1.97	−1.71	0.239	−0.330	4	4.5
15	1.92	−1.61	0.278	−0.253	4	5
16	2.27	−1.61	0.299	−0.276	4.5	3
17	2.04	−1.34	0.273	−0.249	4.5	3.5
18	1.78	−1.26	0.209	−0.180	4.5	4
19	1.65	−1.33	0.221	−0.243	4.5	4.5
20	1.58	−1.35	0.190	−0.264	4.5	5
21	2.28	−1.75	0.286	−0.279	5	2.5
22	2.13	−1.57	0.283	−0.275	5	3
23	1.94	−1.36	0.259	−0.251	5	3.5
24	1.72	−1.12	0.2.13	−0.197	5	4
25	1.54	−1.02	0.212	−0.191	5	4.5
26	1.35	−1.04	0.188	−0.187	5	5