Table 2 Test conditions.
Test number | Charge mass (g) | Coupling medium | Borehole | Replicated times |
---|---|---|---|---|
1 | 5 | Air | 1# | 2 |
2 | 10 | Air | 1# | 2 |
3 | 5 | Water | 1# | 2 |
4 | 10 | Water | 1# | 2 |
Test number | Charge mass (g) | Coupling medium | Borehole | Replicated times |
---|---|---|---|---|
1 | 5 | Air | 1# | 2 |
2 | 10 | Air | 1# | 2 |
3 | 5 | Water | 1# | 2 |
4 | 10 | Water | 1# | 2 |