Research Article
Vertical Shaft Support Improvement Studies by Strata Grouting at Aquifer Zone
Table 3
Apply patterns at different angles.
| Patterns | Angles (°) | Height (m) | Base width (m) | In aquifer | Above aquifer |
| Pattern A | 0 | 30 | 10 | 1 | Pattern B | 15 | 30 | 10 | 11.8 | Pattern C | 45 | 30 | 10 | 40 |
|
|