FREEZIMG PIPE AND GROUND FREEZING METHOD USING FREEZIMG PIPE

摘要

The present invention provides a freezing pipe (100) which is inserted into a bore hole (20) formed in the ground (10) to freeze the ground (10). The freezing pipe (100) includes an outer pipe (110) having a refrigerant injection hole (111) and an inner pipe connection hole (112) which are formed at the lower part; and an inner pipe (120) which has a refrigerant outlet (121) formed at the upper end and a refrigerant discharge hole (122) formed at the lower end and is mounted inside the outer pipe (110) through the inner pipe connection hole (112), wherein refrigerant (200) is injected through the refrigerant injection hole (111) to fill an area between the outer pipe (110) and the inner pipe (120) to a predetermined water level (h), thereby effectively reinforcing a relaxing area of a weak ground where there is leakage water, preventing destruction of the ground due to displacement of the ground, and securing safety of the structure.