Research Article
Optimization of Construction Parameters and Deformation Characteristics of Large-Section Loess Tunnel: A Case Study from Xi’an Metro
Figure 14
Principal stress characteristics of supporting structure of the CK9 + 462 section. (a) L3 = 4 m. (b) L3 = 9 m. (c) L3 = 13 m. (d) L3 = 21 m. (e) Relationship between maximum principal stress and excavation face distance (L3).
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |