| 摘要 |
A cartridge (100) for tunnel blasting is provided. A cartridge for tunnel blasting, which easily breaks a rock, by inserting a cartridge (100) containing water into a bore hole (410) formed in a rock by using a boring device, and injecting liquid nitrogen into the inserted cartridge, so as to induce cracks of the rock by using the characteristic of the water that expands when it is frozen. |
