HEAT TRANSFER IN FREEZING GROUND IN ACCOUNT OF VARIABLE TEMPERATURE ON DAYLIGHT SURFACE AND PHASE CHANGE IN TEMPERATURE INTERVAL
Problem of heat transfer in freezing soil is considered. It is shown that velocity of freezing and temperature distributions through depth for fixed moments of time are influenced by variable temperature on the daylight surface and thermal properties, changing in the temperature interval of phase change. A variant of freezing front penetration curve fitting and approximation of temperature distributions through depth for fixed moments of time are proposed.