Table 1 Key construction steps.
Working condition | Construction stage | Excavation depth (m) |
|---|---|---|
1 | Generate the initial stress field | – |
2 | Simulate the building load | – |
3 | Excavate the first layer of soil, construct the retaining wall, retaining pile, and lattice column | 2.66 |
4 | Erect the first support | – |
5 | Excavate the second soil layer | 8.01 |
6 | Erect the second support | – |
7 | Excavate the third soil layer | 15.01 |
8 | Erect the third support | – |
9 | Excavate the fourth soil layer | 20.01 |
10 | Erect the fourth support | – |
11 | Excavate the fifth soil layer | 24.75 |
