Serial number | Content |
1 | Analysis of initial seepage field |
2 | Initial stress field equilibrium |
3 | Slope excavation, and shotcrete |
4 | Construction of enclosure structure |
5 | The first precipitation is 2.4 m below the ground |
6 | Excavate 1 to 1.9 m below the ground and erect the first inner support and crown beam |
7 | The second precipitation is 4.2 m below the ground |
8 | Excavate 2 to 3.7 m below the ground |
9 | Third precipitation to 6 m below ground level |
10 | Excavate 3 to 5.5 m below the ground and erect the second inner support and waist beam |
11 | Fourth precipitation 8 m below ground level |
12 | Excavate 4 to 7.5 m below ground level |
13 | The fifth precipitation to 10 m below the ground |
14 | Excavate 5 to the bottom of the foundation pit |