Research Article
Numerical Simulation Analysis of the Jacking Force and Its Influencing Factors during the Vertical Tunneling Process
Table 1
The properties of components of the ceiling segment.
| | Type | Material | Size (mm) (inches) | Number | Total weight (kg) | Thickness (mm) (inches) |
| | Round plate | Steel | 500 (19.685) | 1 | 26.68 | 30 (1.181) | | Stiffened panel ① | 494 × 60 (19.449 × 2.362) | 4 | 14.88 | 16 (0.630) | | Stiffened panel ② | 420 × 51 (16.535 × 2.008) | 4 | 10.76 | 16 (0.630) | | Round pipe | 300 (11.811) | 1 | 11.21 | 16 (0.630) |
|
|
