A method for using a soil frost heaving and water-heat migration coupling visualization experiment auxiliary device

Abstract

The utility model relates to an auxiliary device for a coupled visualization experiment of soil frost heave and water and heat migration, which relates to the field of frozen soil measurement. The present invention solves the problem that the current visual test device does not consider the influence of soil frost heaving, water and heat migration coupling on the measurement of specific characteristics of soil particles. The sample tube is a transparent structure for holding soil; the slideway is a transparent structure for installing the slider and the baffle, the slideway is inserted on the side of the sample tube, and the extension direction of the slideway is the same as that of the sample tube. The axial direction is the same. There are connected slider tracks and baffle tracks along the length of the slideway. The baffle track is located in the sample tube. The baffle is inserted into the baffle track. It is in the slider track and can move along the slider track. The slider is used to install the sensor; the sensor is used to measure the specific characteristics of soil particles during the coupling process of soil frost heave and water and heat migration; Porous connection of soil to water sources. It is used for the coupled visualization experiment of soil frost heave and water and heat transfer.

Description

technical field [0001] The invention relates to the field of frozen soil measurement, in particular to a visual experiment device for soil frost heaving and water-heat migration. Background technique [0002] When the temperature of the upper surface of the soil decreases, a temperature gradient gradually forms between the surface of the soil and the interior of the soil. When the temperature of the upper surface drops below zero degrees Celsius, the soil starts to freeze gradually from top to bottom. Driven by the temperature gradient, the water in the soil will gradually migrate upward from the ground and generate heat exchange. This phenomenon is called hydrothermal migration. In a specific soil, when the temperature drops to a certain level, ice lenses will gradually form in the soil, and the formation of ice lenses will cause the soil to expand upwards. This phenomenon is called soil frost heave. In cold regions, climate change will cause soil frost heaving and water a...

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a visual test device for soil frost heave and water-heat migration coupling to solve the problem that the current visual test device does not take into account the influence of soil frost heave water-heat migration coupling on the measurement of specific characteristics of soil particles, so as to realize Indoor frost heave and water heat migration simulation test, research on soil frost heave and water heat migration coupling process

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