Evaluation of Frost Heave Pressure Characteristics in Transverse Direction to Heat Flow

The freezing method for underground construction has been attracting attention owing to its non-polluting characteristics. This method requires precise forecasting of freezing behavior and countermeasure technology against frost expansion. To improve this method, it is necessary to know the expansion characteristics in a transverse direction to heat flow as well as in the heat flow direction. In this study, we developed a new apparatus for frost heave experiments that can measure the pressure due to expansion in the transverse direction. As a conclusion, we successfully evaluated the characteristics of frost heave pressure in the transverse direction to heat flow through experiments.