工况 | 衬砌周围土体最大沉降/mm | 盾构衬砌最大主应力/MPa | 盾构衬砌最小主应力/MPa | 地表沉降值/mm | 沉降影响范围/m |
① | 15.5 | −0.41 | −3.8 | 2.37 | 19.5 |
② | 15.7 | −0.41 | −3.8 | 2.73 | 19.6 |
③ | 16.2 | −0.41 | −3.7 | 3.02 | 20.5 |
④ | 16.2 | −0.41 | −3.8 | 3.12 | 20.8 |
⑤ | 16.2 | −0.41 | −3.8 | 3.87 | 21.0 |
⑥ | 16.2 | −0.41 | −3.8 | 4.05 | 21.0 |
⑦ | 16.6 | −0.41 | −3.7 | 4.51 | 24.5 |