Research Article
Performance Investigation of Tunnel Lining with Cavities around Surrounding Rocks
Table 4
Calculated stresses of selected lining sections in group 3.
| Surface | Case | Lining section | 25° | 50° | 75° | 90° | 100° | 135° | 160° |
| Outer surface | 3-1 | 1.46 | 3.50 | 4.16 | −0.08 | — | — | — | 3-2 | 1.38 | 3.38 | −1.35 | 1.31 | 6.47 | 3.54 | 0.34 | 3-3 | 1.38 | 3.47 | −2.40 | 8.78 | −2.30 | 4.99 | 0.40 |
| Inner surface | 3-1 | 4.53 | 2.49 | 2.90 | 6.06 | — | — | — | 3-2 | 4.40 | 2.26 | 8.19 | 4.45 | −0.21 | 2.54 | 3.68 | 3-3 | 4.51 | 2.27 | 9.77 | −2.78 | 10.30 | 3.11 | 3.52 |
|
|