The invention is a
soil frost-heaving and thawing-settlement tester based on
thermoelectric refrigeration control, which comprises a tester main body, a acquisition control device, a water supplement device, a loading device, wherein the water supplement device is connected with a
bottom water supplement groove body of the tester main body; the acquisition control device is connected correspondingly with a A temperature sensor which is responsible for the monitoring of
sample temperature gradient change in the tester main body, a displacement sensor, and a hydrostatic sensor; the acquisition control device is connected with a B temperature sensor in a
semiconductor refrigerating body; the loading device is disposed in a pressure chamber in the tester main body. The advantages are that: according to the test
water content, the test is supplemented with water and drained automatically from the lower part, the water supplement amount is calculated accurately; the hole pressure in the draining process is monitored. Continuous stepless loading is realized; the
frost heaving force testing is realized after stepless continuous automatic loading and locking volume, and the
simulation truth degree for natural conditions in laboratory
frost-heaving and thawing-settlement test is improved, and the
test efficiency is improved and the test labor intensity is reduced.