Controllable temperature soil frost heaving tester

A frost heave test and soil technology, which is applied in soil material testing, temperature control, material inspection products, etc., can solve the problem of inability to fully simulate the field frost heave of soil, and achieve the effect of improving the test accuracy.

Pending Publication Date: 2018-05-15
JILIN UNIV
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the problem that the existing technology...

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  • Controllable temperature soil frost heaving tester
  • Controllable temperature soil frost heaving tester
  • Controllable temperature soil frost heaving tester

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Embodiment Construction

[0029] The present invention is described in detail below in conjunction with accompanying drawing:

[0030] refer to figure 1 , a temperature-controllable soil frost heaving test device according to the present invention includes a test box 1 , an environment temperature control system, a soil temperature monitoring system, an information collection system 14 and a computer 15 .

[0031] The test box 1 includes a main box and a soil sample cylinder 2, the main box is a cuboid shell structure, and the inner space of the test box 1 is divided into upper and lower parts by a partition 12;

[0032] refer to figure 1 and figure 2 , the soil sample cylinder 2 is a cylindrical shell structure, and the soil sample cylinder 2 includes an upper top plate 3 , a lower bottom plate 4 and a cylinder body 5 .

[0033] refer to Figure 3-1 and Figure 3-2 , the upper roof 3 is composed of the upper half of the upper roof and the lower half of the upper roof. The upper half of the upper...

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Abstract

The invention discloses a controllable temperature soil frost heaving tester, which overcomes the problem that the soil frost heaving in the field cannot be fully simulated. The controllable temperature soil frost heaving tester comprises a test box (1), an ambient temperature control system, a soil temperature monitoring system, an information acquisition system (14), and a computer (15). The test box (1) includes a main box and a soil sample tube (2), and a partition plate (12) is provided in the main box; the soil sample tube (2) includes a top plate (3), a bottom plate (4), and a cylinder(5); two sets of cooling/heating devices (13) of the ambient temperature control system and an upper top plate (3) are connected with an upper circulating liquid pipe (9) of a lower bottom plate (4) and a lower circulating liquid pipe (10), four plug-in temperature sensors (11) of the soil temperature monitoring system are inserted into the soil samples in a cylinder (5), and the information terminals of the four plug-in temperature sensors (11) are connected to the information acquisition system (14); and the information acquisition system (14) is connected to a computer (15).

Description

technical field [0001] The invention relates to a test device belonging to the technical field of geotechnical engineering test instruments, more precisely, the invention relates to a temperature-controllable soil frost heave test device. Background technique [0002] The change of performance characteristics of frozen soil under the action of frost heaving has always been a difficult point in the study of frozen soil. The main reason is that the indoor test conditions cannot meet the actual requirements, and the constant temperature control with small errors cannot be guaranteed, and the freezing temperature cannot be changed with a small temperature gradient. , As a result, the test takes a long time and the error of the test result is large. When the temperature of the equipment meets the requirements, the constant temperature effect cannot be accurately guaranteed, and the external environment of the test box has a great influence on the temperature in the test box. The ...

Claims

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Application Information

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IPC IPC(8): G01N33/24G05D23/20
CPCG05D23/20G01N33/24
Inventor 王清王伯昕范建华谢苏吉
Owner JILIN UNIV
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