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Comparison of grouting time between numerical simulation test and laboratory experiment.
| Number of groups | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Grouting speed v(L/h) | 2.1 | 3.15 | 4.2 | 5.25 | 6.3 |
| laboratory test grouting time t(s) | 46.2 | 30.8 | 23.1 | 18.4 | 15.5 |
| Numerical simulation of grouting time t(s) | 45.2 | 29.8 | 22.4 | 17.8 | 15 |
| Percentage of grouting time difference | 2.2% | 4.2% | 3% | 3.3% | 3.2% |
