A device and method for making layered cryogenic structure frozen soil samples
A technology of frozen soil and structure, which is applied in the field of devices for making layered cryogenetic structure frozen soil samples, which can solve the problems of complex operation, inapplicability to frozen soil, freezing temperature, freezing time, and difficulty in controlling the height of the uniform mixture of soil and water And other issues
Active Publication Date: 2021-05-18
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
[0009] (1) The frozen soil samples produced are mainly aimed at frozen soils with high water (ice) content, and cannot be applied to frozen soils lower than saturated water (ice) content;
[0010] (2) The purpose of controlling the position of the ice layer cannot be achieved;
[0011] (3) The operation is complicated, and the freezing temperature, freezing time, and the height of the uniform mixture of soil and water are not easy to control
Method used
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Embodiment
[0036] Such as figure 2 It is a device for making layered cryogenic structure frozen soil samples. It consists of an incubator main body 4, an incubator cover 5, a sample cylinder 6, a sample cylinder cover 7, a temperature control tube 8, a vacuum tube 9, a refrigeration Tube 10, base 11, temperature sensor 12, moisture sensor 13, temperature control system 14 is composed. Wherein, the temperature control tube 8, the vacuum tube 9, and the refrigeration tube 10 are all ring-shaped and form a closed loop with the temperature control system 14, and are arranged on the outer wall surface of the sample cylinder 6, and the temperature control tube 8, the vacuum tube 9, and the refrigeration tube 10 are all connected with their respective The temperature control system 14 is connected, and the temperature control system 14 can control the temperature of the internal circulating fluid of the temperature control tube 8, the vacuum tube 9, and the refrigeration tube 10; The tube 10 ...
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The invention relates to a device and method for making a layered cryogenetic structure frozen soil sample. , temperature sensor, moisture sensor, temperature control system. Among them, the temperature control tube, vacuum tube, and refrigeration tube are all ring-shaped and form a closed loop with the temperature control system, and are arranged on the outer wall surface of the sample cylinder. The temperature control tube, vacuum tube, and refrigeration tube are all connected to their respective temperature control systems. The temperature control system It can control the temperature of the circulating fluid inside the temperature control tube, vacuum tube and refrigeration tube; there are tube holes on the main body of the incubator for the passage of the temperature control tube, vacuum tube and refrigeration tube and to fix their positions. The invention has the advantages of simple structure, convenient operation, etc. features.
Description
technical field [0001] The patent of the present invention relates to a device and method for making a layered cryogenic structure frozen soil sample. Background technique [0002] Frozen soil is a multiphase complex composed of soil particles, liquid water, ice and gas. Usually, the soil with a temperature of 0 °C or below and containing ice is called frozen soil. In nature, frozen soil can be seen everywhere. During the freezing process of the soil, the ice-forming effect of the water in the soil depends on the strength and speed of the joint action of internal stress and external stress, and the difference in strength and speed During the process of freezing the water in the soil into ice, the spatial arrangement and combination of ice crystals or ice layers and mineral particles are very different, which will lead to differences in the cryogenic structure of frozen soil. According to the division of frozen soil cold structure in "Frozen Soil Mechanics" (written by Ma We...
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IPC IPC(8): G01N1/28G01N1/42
CPCG01N1/28G01N1/42
Inventor 马冬冬马芹永黄坤苏晴晴张蓉蓉袁璞
Owner ANHUI UNIV OF SCI & TECH