Table 4. Pressure-Bearing Capacity of the Four Plugging Materials in Different Ratios.
| experiment number | granular materials, % | elastic materials, % | fiber material, % | bonding material, % | pressure-bearing capacity, MPa |
|---|---|---|---|---|---|
| 1 | 3 | 2 | 5 | 0.5 | 9 |
| 2 | 3 | 4 | 8 | 0.5 | 11 |
| 3 | 3 | 6 | 10 | 0.5 | 12 |
| 4 | 5 | 6 | 5 | 1.0 | 13 |
| 5 | 5 | 4 | 8 | 1.0 | 17 |
| 6 | 5 | 2 | 10 | 1.0 | 17 |
| 7 | 8 | 6 | 5 | 1.5 | 16 |
| 8 | 8 | 2 | 8 | 1.5 | 17 |
| 9 | 8 | 4 | 10 | 1.5 | 14 |