The invention discloses a thermal consolidation experiment model device of
soft clay. The thermal consolidation experiment model device comprises a base, a top cover, an internal
barrel and an external
barrel, wherein the internal
barrel sleeves the external barrel, the top cover is arranged at upper ends of the internal barrel and the external barrel, the base is arranged at lower ends of the internal barrel and the external barrel, the base and the top cover are in
bolt connection with the external barrel by at least three anchor rods to encircle, a drainage plate is arranged in the internalbarrel, a conductive wire is wound around an outer wall of the internal barrel, an iron rod is arranged in the drainage plate, a
piston is arranged at an upper end of the internal barrel, a sleeve groove is formed in the center of the
piston and is matched with the drainage plate, a wire through hole is formed in a top end of the sleeve groove, the sleeve groove sleeves the drainage plate and cando upward and downward motion so as to compress soil in the internal barrel, the iron rod and the conductive wire are respectively connected with a positive
electrode and a negative
electrode of a power supply, an air pressure cavity is encircled and formed between the
piston and the internal barrel, an air injection
small hole is formed in the bottom cover, a pressurization pump is connected with the air injection
small hole by a pipeline, and the pressurization pump is inflated to simulate
pile-loading pressure. By the method, the problems of air leakage under vacuum preloading, vacuum degree reduction and non-uniform heating of soil around a manhole during the thermal
consolidation process are solved.