Soil freezing (for ground improvement)
soletanche bachy
Ground freezing works on the principle of freezing the water in the soil pores, thus rendering the soil impermeable and of greater strength.
The soil is frozen by the transfer of frigories from a low-temperature fluid to the ground through a probe. When in contact with the probe, the water freezes and forms a sheaf of frozen soil around the probe. The sheaf gradually expands and can be used to build strong, impermeable walls.
