| 摘要 |
The present invention relates to an ice-bomb rock cracking device using an U-shaped freezing pipe and, more specifically, to an ice-bomb rock cracking device using an U-shaped freezing pipe which is capable of easily breaking a rock by forming a crack in the rock based on the principle that the volume of water is expanding when the water freezes, since a boring hole is formed in the rock by using a boring device, and water and liquid nitrogen are injected into the inside of the boring hole by using an injecting device. According to the present invention for achieving the above purpose, the ice-bomb rock cracking device comprises: the injection apparatus for sealing the inlet of the boring hole formed on the rock; a water injection nozzle installed in the injection apparatus; an U-shaped first nitrogen injection pipe installed to be attached or detached in the front of the injection apparatus; and a supply part connected to the injection apparatus to supply water and liquid nitrogen. |
