Research Article
Research and Analysis on the Influence of Small Clear Distance Drilling and Blasting Method on the Existing Tunnel Structure
Table 2
Partial explosive parameters.
| Name of explosive | Cartridge diameter (mm) | Explosive density (g/cm3) | Explosive detonation velocity (m/s) |
| EL-102 emulsion oil | 20 | 1.05 | 3500 | No. 2 rock explosive | 22 | 1.1 | 2100∼3000 | No. 3 rock explosive | 22 | 1.0 | 1600∼1800 |
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