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Artificial Ground Freezing. Problem Overview
Artificial ground freezing is the most universal and safest way to increase ground strength.
Artificial freezing of thawed and frozen soils by seasonal cooling devices has become widely spread in permafrost in the Far North. Thermal stabilization of ground by its passive refrigeration helps solve the problem of permafrost thawing under buildings and structures to prevent settlement and destruction of foundations.
Artificial ground freezing technology is also successfully applied in the construction of buildings on weak and unstable water-bearing grounds:
At present, when designing basements and foundations of buildings erected in complex geotechnical conditions using artificial ground freezing technology, it is required to apply computer simulation for predicting temperature fields and mechanical properties of the ground. These predictions should take into account ground freezing and thawing with the computation of convective heat transfer, moisture migration to the freezing front, and also the work of cooling devices.
Examples of Projects: