| 沉降值(mm) | ||||
| 组别 | A | B | C | D |
| 1 | 0 | 20 | 0 | 0 |
| 2 | 0 | 40 | 0 | 0 |
| 3 | 0 | 60 | 0 | 0 |
| 4 | 0 | 80 | 0 | 0 |
| 5 | 0 | 90 | 0 | 0 |