Method and system to freeze a piece of land

摘要

A system for freezing a portion of ground comprises at least one probe having at least one end insertable in the ground to be frozen and having at least one lateral wall, and means for supplying a cryogenic liquefied gas connected to the probe so as to supply the cryogenic liquefied gas to the same probe, said supply means comprising a device for dispensing said cryogenic liquefied gas placed on the inside of the probe, the dispensing device being spaced from said end insertable in the ground in such a manner as to spray said gas directly onto said lateral wall of said probe.