Table 3 Main construction phase.
From: Mechanical response of elevated bridge piles to adjacent deep excavation
Stage | Simulation steps |
|---|---|
1 | The initial ground stress analysis is carried out and the displacement is zeroed out. |
2 | Existing viaduct construction. |
3 | Displacement clear zero. |
4 | Ground wall construction. |
5 | Excavation stage 1. The excavation depth is 4 m. The crown beam is placed 2 m below the surface and the first inner support is added. |
6 | Excavation stage 2. The excavation depth is 4 m. Set steel enclosing purlin 7 m below the surface and add a second inner support. |
7 | Excavation stage 3. The excavation depth is 4 m. |
8 | Excavation stage 4. The excavation depth is 2 m. Steel enclosing purlin is set 13 m below the surface and a third inner support is added. |
9 | Excavation stage 5. The excavation depth is 2 m. |
10 | Excavation stage 6. The excavation depth is 2 m. |
