Thaw compressometer with unidirectional freezing function

The invention relates to the field of civil engineering and discloses a thaw compressometer with a unidirectional freezing function. The thaw compressometer comprises a soil sample unidirectional freezing system and a thaw compressometer. The soil sample unidirectional freezing system is composed of a multilayered semiconductor chilling plate, a semiconductor automatic thermostatic controller and a heat sink. The semiconductor chilling plate equipped with the heat sink is arranged on the upper surface of a soil sample. A vacuum heat-insulation layer is arranged inside each sample groove. The thaw compressometer is composed of a variable-pressure heating controller and a heating plate. The heating plate is arranged on the upper surface of the soil sample. A pressure transmission plate and a dial indicator installed on a support are arranged on the heating plate. A guide ring and a drain-pipe are arranged inside the sample groove. A thermal insulation material is arranged on the outside of the sample grooves an