Secure sealing and soil stabilisation
Ground freezing involves temporarily solidifying and waterproofing the subsoil by artificially freezing the soil water. The resulting frozen mass makes the subsoil exceedingly stable and provides protection against any influx of water until these functions can be taken over by the building structure later on.
After the construction work is completed, the ground thaws naturally. Apart from the freeze lances installed in the ground before freezing, soil freezing does not leave any artificial additives in the subsoil and is therefore one a minimally invasive method.
Precision work: Drilling accuracy is the key to success
The success of ground freezing fundamentally depends on the boring technique used for the freeze boreholes. The freeze boreholes must be placed with maximum accuracy and the drill strings sunk with maximum impermeability. Other technical challenges include drilling under pressure from groundwater and in confined workspaces. Stump-Franki has the special boring equipment and proven drilling and preventer techniques necessary to carry out this construction task economically and safely with its own experienced specialist team.