Deep soil freezing and thawing process test system

The present invention relates to a deep portion of soil freezing and thawing test system, characterized in that the temperature control box structure with an external cooling bath contact, temperature control box, high voltage plexiglass cylinder was placed on a temperature controlled steel base, the base opening two holes, one after the aqueduct, another pipe connected to the pressure regulator. Sequentially placed under the upper permeable rock base, filter paper samples, and a temperature sensor mounted in a sample. An upper portion of the sample was placed on a temperature-controlled ram. The head pressure outlet hole is opened, after the lead sealing sealant. The upper punch engaged with the dowel tester. The cylinder is connected through a water conduit and the sample. Cylinder is placed on the load cell, and fixed with the holder. The present invention can be systematically studied freezing and thawing deep soil, and absorbance obtained when the frost heaving of the soil at different depths of the deep freeze action at different temperature gradients, size of the drainage rate. Provide technical support for the study to clarify the interaction between the temperature, moisture, pressure and time during the action of the high pressure of the soil under external loads are formed in the freezing Freezing cold permafrost and green structure.