Device and method for testing deformation and water transfer characteristics of soil body under temperature gradient effect
A technology of temperature gradient and soil deformation, applied in soil material testing, material inspection products, etc., can solve problems such as no soil deformation research
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Embodiment 1
[0026] see Figure 1-6 The device for testing soil deformation and moisture migration characteristics under the action of temperature gradient includes a sample chamber 13, a temperature gradient control device, and a temperature and water content acquisition device. The sample chamber 13 is composed of an inner sleeve 6 , an outer sleeve 7 , an interlayer, an upper cover 18 and a lower cover 1 . On the side of the inner sleeve 6 and the outer sleeve 7, there are four vertical and evenly distributed round holes 23, and the temperature and moisture sensor probes 11 are inserted in the round holes 23. The inner sleeve 6, the outer sleeve 7, the upper cover plate 18 and the lower cover plate 1 are tightly connected into one body by bolts 12 . The temperature gradient control device includes a lower high-temperature water bath 26, an upper low-temperature water bath 15, upper and lower heating chambers 2 placed inside the sample chamber 13, upper and lower heat transfer plates 4 ...
Embodiment 2
[0027] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows:
[0028] see figure 1 and 2 , The inner sleeve 6 and the outer sleeve 7 of the sample chamber 13 in the test device for soil deformation and moisture migration characteristics under the action of temperature gradient of the present invention are made of plexiglass material, forming a double-layer hollow interlayer structure. A thermal insulation material 8 is placed between the inner sleeve 6 and the outer sleeve 7 . The inner sleeve 6 has an inner diameter of 50mm±0.1mm, an outer diameter of 66mm±0.1mm, a height of 150mm±0.1mm, and a wall thickness of 8mm±0.2mm; the outer sleeve 7 has an inner diameter of 84mm±0.1mm and an outer diameter of 100mm± 0.1mm, height 150mm±0.1mm, wall thickness 8mm±0.2mm. There is an annular groove 17 on the inner wall of the inner sleeve 6 at a distance of 15 mm ± 0.1 mm from the upper and lower bottom surfaces, for fixing the he...
Embodiment 3
[0032] Embodiment 3: This embodiment relies on the above-mentioned experimental device for the determination method of soil deformation and water content under temperature gradient, and the experimental steps are as follows:
[0033]1. Installation steps: Place the annular lower cover 1 horizontally, place the lower heating chamber 2 in the concave space of the lower cover 1, and connect the lower heating chamber 2 with the lower high temperature constant temperature water bath 26 with the pipe 24; The rubber ring 5 is embedded in the annular groove 17 at the lower end of the inner wall of the inner sleeve 6, and the lower heat transfer plate 4 is pushed into the inner wall of the inner sleeve 6, so that the rubber ring 5 is inserted into the annular groove 17 in the middle of the heat transfer plate 4, so as to Fix the lower end heat transfer plate 4; insert the rubber pad 9 into the rectangular groove 25 on the inner wall of the inner sleeve 6, then place the inner sleeve 6 o...
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