Abstract: This article examines the issue of numerical modeling of the soil freezing-thaw process for projection of thermal stabilization system of soil building foundations in the cryolithozone of the Sakha Republic (Yakutia). The goal of this work consists in studying the process of formation of the temperature field of the massif of the soils under the effect of thermal stabilizers. Research is conducted on the process of formation of ice wall as the result of thermal exchange of the soil with the thermal stabilizers and external cool air during clearing of the snow cover from the construction site. The main conclusions of the conducted research include the need for development of mathematical models that would account for the mass exchange processes in the zones of effect of the thermal stabilizers with consideration of the conditions of formation of the cryogenic textures in the process of forced freezing of the soils. There is also a need for mathematical explanation of the phenomena of condensation and evaporation of Freon taking place inside the thermal stabilizers.

Abstract: The subject of this research is the interaction of the seasonal thermal stabilizers with the soils, processes of thermal and mass transfer and formation of cryotextures. The thermal stabilizers found broad implementation in northern construction for strengthening foundations of buildings formed with plastic and thawed dispersed soils with installation of Anti-filtration screens and ice walls. The efficiency of the work of thermal stabilizers is assessed based on the rate of formation of the calculated temperature schedule in foundations of engineering structures. The presented data of formation of temperatures of the soil foundations cooled by the liquid-vapor thermal stabilizers reflect regularities characteristic for dispersed soils of all types with various indexes of moisture and salinization for buildings with ventilated crawl spaces.