Experimental equipment and experimental method for artificial freezing moisture migration model
A kind of experimental equipment and artificial freezing technology, which is applied to the analysis of materials, material moisture content, material inspection products, etc., can solve the problems of complex temperature boundary conditions and complex temperature boundary condition model experimental devices that have not yet been seen.
Inactive Publication Date: 2021-04-30
SUN YAT SEN UNIV
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[0003] Nuclear waste is radioactive and will continuously release heat during its decay process, so the temperature boundary conditions in the freezing conditions of the high-level radioactive waste repository are more complicated than those of other freezing construction conditions
At present, most of the freezing experiments are one-way freezing or overall freezing at a constant negative temperature, and there is no model experimental device for complex temperature boundary conditions, especially the experimental device for freezing model experiments involving nuclear waste repositories.
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[0017] Combine below Figure 1 to Figure 3 Embodiments of the present invention are described in detail, examples of which are shown in the drawings, in which the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0018] In describing the present invention, it is to be understood that when the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower" appear , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial ", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of des...
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The invention discloses experimental equipment and an experimental method for an artificial freezing moisture migration model, the experimental equipment comprises a loading device, a cold bath machine and a test box, and the test box comprises a first cold bath plate, a first side plate, a second side plate and a plurality of second cold bath plates; the first cold bath plate, the first side plate, the second side plate and the second cold bath plates are used as side walls to form a cavity for placing a soil sample, and the first cold bath plate and the second cold bath plates are provided with temperature control solution channels; the loading device transmits force to the first cold bath plate through the axial force sensor; and the experimental equipment comprises a moisture temperature sensor and a displacement sensor. The cold bath machine conveys a temperature control solution to the first cold bath plate and the second cold bath plates, the temperature of the temperature control solution is controlled, complex temperature boundary conditions are simulated, the first cold bath plate applies pressure to the soil sample, and soil sample stress displacement change data is obtained. The method can be widely applied to the technical field of soil sample detection.
Description
technical field [0001] The invention relates to the technical field of soil sample detection, in particular to an experimental device and an experimental method for an artificially frozen water migration model. Background technique [0002] The current best disposal solution for high-level radioactive waste is to store it in a high-level radioactive waste repository at a depth of 500 to 1,000 m. The Regulations on the Safety Management of Radioactive Waste stipulate that the safe isolation period for high-level radioactive waste disposal should not be less than 10,000 years. It is difficult to ensure that natural or man-made disasters will not cause nuclear waste leakage in a long time span. Therefore, it is proposed to use the freezing method to freeze the buffer backfill material layer to control the nuclide leakage in time. [0003] Nuclear waste is radioactive and will continuously release heat during its decay process. Therefore, compared with other freezing constructio...
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IPC IPC(8): G01N33/24G01N25/62
CPCG01N33/246G01N25/62
Inventor 南霁云刘建坤常丹
Owner SUN YAT SEN UNIV