Infiltracja i przemiany fazowe wilgoci w zamarzniętym gruncie

In the paper has been described problem of freezing and thawing of soil as well as has been adapted a mathematical model of infiltration into seasonally frozen soil, making use of the coupled heat and moisture transport equations. Methods for determining the hydrophysical soil properties (hydraulic and thermal conductivities, matric potential, heat capacity) have been reviewed and a method for estimating the parameters related to phase transition has been suggested. The mathematical model has been verified in the experimental basin in Murzynowo.