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77-30569/274059 Modeling the dynamics of temperature field soil base of the building in permafrost
Engineering Education # 12, December 2011
We simulated the dynamics of temperature field soil base of the building, installed on a ground floor in a continuous permafrost in areas with seasonal freezing and thawing of the soil. The model is based on boundary-value problem for the heat equation with phase transitions. The equation describes the variation with time of the temperature field in a rectangular area of ground under the building and take into account the thermal effect of heated buildings on the ground and seasonal changes in climatic conditions (air temperature). The problem was solved numerically using method of control volume, the solution is implemented in the environment of Compaq Visual Fortran. The simulation results allow to analyze the possibility of dangerous cryogenic processes, resulting in a building in an emergency situation (heave, settlement, etc.).
 
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