Testing device for measuring deformation and permeation of coarse-particle saline soil

Abstract

The utility model belongs to the technical field of geotechnical test equipment, and particularly relates to a test device for measuring deformation and permeation of coarse-particle saline soil, which comprises a base, a reaction frame and a control box, a support is arranged at the top of the base, an objective table is arranged at the top of the support, a soil sample barrel is arranged in the middle of the top of the objective table, an air source pressure assembly is arranged in the middle of the top of the base, and the output end of the air source pressure assembly extends into an inner cavity of the soil sample barrel and is provided with a chassis. A humidity sensor is arranged on the front surface of the soil sample barrel, and a detection head of the humidity sensor extends to an inner cavity of the soil sample barrel; the counter-force frame is arranged at the top of the objective table, a counter-force rod is arranged in the middle of the counter-force frame, a cover plate is arranged at the bottom of the counter-force rod, and a displacement sensor is arranged at the top of the counter-force rod; the device is reasonable in structure, liquid can be automatically and quantitatively added conveniently in the using process, meanwhile, deformation data can be read conveniently, and the detection accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical testing equipment, in particular to a testing device for measuring the deformation and penetration of coarse-grained saline soil. Background Art

[0002] The soil will produce compression deformation under the action of additional loads. When the soil is soaked in water, the structure and strength of the soil will change due to the action of water, which will cause greater compression deformation. At the same time, when the liquid flows in the soil, the fine particles in the soil will be transferred with the flow of the liquid, and the soluble components in the soil will also continue to dissolve and migrate, reducing the cementation inside the soil, which will produce dissolution and filtration deformation. Therefore, the deformation of the soil under the action of seepage includes two parts: one is the change of structure and strength caused by the liquid; the other is the dissolution and transfer of cementing materials. For soils with large pore volume or high salt content, the second deformation effect is very obvious.

[0003] In the prior art, the application number is CN201720186674.4, and the application name is a test device for measuring the deformation and permeability of coarse-grained saline soil. The technical solution recorded provides a test device for measuring the deformation and permeability of coarse-grained saline soil, which can accurately detect the deformation and permeability of soil samples.

[0004] However, there are still some shortcomings in the actual use process, such as it is not convenient to add liquid automatically and quantitatively, and it is not convenient to read the deformation data, which affects the accuracy of the detection. For this reason, we have made further improvements to it. Utility Model Content

[0005] The purpose of this section is to summarize the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problems existing in the prior art, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a test device for measuring the deformation and permeability of coarse-grained saline soil. During use, it is convenient to automatically and quantitatively add liquid and to read deformation data, which helps to improve the accuracy of detection.

[0008] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0009] A test device for measuring deformation and permeability of coarse-grained saline soil, comprising a base, a reaction frame and a control box;

[0010] in,

[0011] A bracket is provided on the top of the base, a loading platform is provided on the top of the bracket, a soil sample barrel is provided in the middle of the top of the loading platform, an air source pressure component is provided in the middle of the top of the base, an output end of the air source pressure component extends to the inner cavity of the soil sample barrel and a chassis is provided, a humidity sensor is provided on the front surface of the soil sample barrel, and a detection head of the humidity sensor extends to the inner cavity of the soil sample barrel;

[0012] The reaction frame is arranged on the top of the loading platform, a reaction rod is arranged in the middle of the reaction frame, a cover plate is arranged at the bottom of the reaction rod, a displacement sensor is arranged on the top of the reaction rod, a liquid storage tank is arranged on one side of the top of the reaction frame, a water pipe is arranged at the bottom of the liquid storage tank, and the bottom of the water pipe passes through the cover plate and extends to the inner cavity of the soil sample barrel;

[0013] The control box is arranged on the other side of the reaction frame, a display unit is arranged on the front surface of the control box, a processor and a control module are arranged in the inner cavity of the control box, the processor is electrically input and connected to the humidity sensor and the displacement sensor, the processor is electrically output and connected to the display unit and the control module, and the control module is electrically output and connected to the metering solenoid valve.

[0014] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, wherein: supporting legs are arranged at the four corners of the bottom of the base, and a suction cup is arranged at the bottom of the supporting legs.

[0015] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, the air source pressure component includes an air pressure source and a piston pressure rod.

[0016] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, the outer diameter of the chassis is the same as the inner diameter of the soil sample barrel.

[0017] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, a liquid discharge port is provided on one side of the soil sample barrel.

[0018] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, the display unit includes a display screen and a speaker.

[0019] As a preferred solution of the test device for measuring deformation and permeability of coarse-grained saline soil described in the utility model, wherein: the control box is connected to an external power supply through a wire.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a metering solenoid valve on the water delivery pipe, water can be added to the soil sample barrel in a quantitative manner; by arranging a humidity sensor on the front surface of the soil sample barrel, real-time humidity data of the soil sample can be detected; by arranging a displacement sensor on the top of the reaction rod, deformation data of the soil can be accurately obtained, which helps to improve the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the system framework structure of the utility model.

[0025] In the figure; 100 base, 110 supporting tripod, 120 bracket, 130 loading platform, 140 soil sample barrel, 150 air source pressure assembly, 160 chassis, 170 humidity sensor, 200 reaction frame, 210 reaction rod, 220 cover plate, 230 displacement sensor, 240 liquid storage tank, 250 water pipe, 260 metering solenoid valve, 300 control box, 310 display unit, 320 processor, 330 control module. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the implementation methods of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The utility model provides the following technical solutions: a test device for measuring the deformation and permeability of coarse-grained saline soil, which is convenient for automatically adding liquid in a quantitative manner during use, and is convenient for reading deformation data, which helps to improve the accuracy of detection;

[0031] Figures 1 to 3 The structure diagram of an embodiment of a test device for measuring deformation and permeability of coarse-grained saline soil according to the utility model is shown, and the main part thereof includes a base 100, a reaction frame 200 and a control box 300;

[0032] Please refer again Figures 1 to 3 The four corners of the bottom of the base 100 are equipped with support legs 110, and a suction cup is installed at the bottom of the support legs 110. A bracket 120 is installed on the top of the base 100, and a loading platform 130 is installed on the top of the bracket 120. A soil sample barrel 140 is installed in the middle of the top of the loading platform 130. An air source pressure component 150 is installed in the middle of the top of the base 100. The air source pressure component 150 includes an air pressure source and a piston pressure rod. The output end of the air source pressure component 150 extends to the inner cavity of the soil sample barrel 140 and is equipped with a chassis 160. The outer diameter of the chassis 160 is the same as that of the soil sample barrel 140. The inner diameters of the sample barrels 140 are the same. A humidity sensor 170 is installed on the front surface of the soil sample barrel 140, and the detection head of the humidity sensor 170 extends to the inner cavity of the soil sample barrel 140. A liquid discharge port is installed on one side of the soil sample barrel 140. Furthermore, the base 100 and the support leg 110 are used to support the bracket 120, and the bracket 120 is used to support the loading platform 130. The loading platform 130 is used to support the soil sample barrel 140 and the reaction frame 200. The soil sample barrel 140 is used to support the soil sample, and the humidity sensor 170 is used to detect the real-time pressure of the soil sample.

[0033] Please refer again Figures 1 to 3: The reaction frame 200 is installed on the top of the stage 130, a reaction rod 210 is installed in the middle of the reaction frame 200, a cover plate 220 is installed at the bottom of the reaction rod 210, a displacement sensor 230 is installed on the top of the reaction rod 210, a liquid storage tank 240 is installed on one side of the top of the reaction frame 200, a water pipe 250 is installed at the bottom of the liquid storage tank 240, and the bottom of the water pipe 250 passes through the cover plate 220 and extends to the inner cavity of the soil sample barrel 140. Further, the reaction frame 200 is used to carry the reaction rod 210, the reaction rod 210 is used to follow the deformation displacement of the soil, the cover plate 220 is used to connect to the top surface of the soil, the displacement sensor 230 is used to detect deformation data, the liquid storage tank 240 is used to store water, the water pipe 250 is used to drain water to the soil sample, and the metering solenoid valve 260 is used to quantitatively deliver water;

[0034] Please refer again Figures 1 to 3 : The control box 300 is installed on the other side of the reaction frame 200, and a display unit 310 is installed on the front surface of the control box 300. A processor 320 and a control module 330 are installed in the inner cavity of the control box 300. The processor 320 is electrically connected to the humidity sensor 170 and the displacement sensor 230 through input, and the processor 320 is electrically connected to the display unit 310 and the control module 330 through output. The control module 330 is electrically connected to the metering solenoid valve 260 through output. The display unit 310 includes a display screen and a speaker. The control box 300 is connected to an external power supply through a wire. Further, the control box 300 is used to carry electronic components such as the display unit 310. The display unit 310 is used to display and read data. The processor 320 is used to receive and send circuit signals. The control module 330 is used to control the metering solenoid valve 260.

[0035] Working principle: During the use of the utility model, by providing a metering solenoid valve 260 on the water delivery pipe 250, water can be added to the soil sample barrel 140 in a quantitative manner. By providing a humidity sensor 170 on the front surface of the soil sample barrel 140, real-time humidity data of the soil sample can be detected. By providing a displacement sensor 230 on the top of the reaction rod 210, deformation data of the soil can be accurately obtained, which helps to improve the accuracy of the detection.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A test device for measuring deformation and permeability of coarse-grained saline soil, characterized by: It comprises a base (100), a reaction frame (200) and a control box (300); in, A bracket (120) is arranged on the top of the base (100), a loading platform (130) is arranged on the top of the bracket (120), a soil sample barrel (140) is arranged in the middle of the top of the loading platform (130), an air source pressure assembly (150) is arranged in the middle of the top of the base (100), an output end of the air source pressure assembly (150) extends to the inner cavity of the soil sample barrel (140) and a bottom plate (160) is arranged, a humidity sensor (170) is arranged on the front surface of the soil sample barrel (140), and a detection head of the humidity sensor (170) extends to the inner cavity of the soil sample barrel (140); The reaction frame (200) is arranged on the top of the loading platform (130), a reaction rod (210) is arranged in the middle of the reaction frame (200), a cover plate (220) is arranged at the bottom of the reaction rod (210), a displacement sensor (230) is arranged on the top of the reaction rod (210), a liquid storage tank (240) is arranged on one side of the top of the reaction frame (200), a water pipe (250) is arranged at the bottom of the liquid storage tank (240), and the bottom of the water pipe (250) passes through the cover plate (220) and extends to the inner cavity of the soil sample bucket (140); The control box (300) is arranged on the other side of the reaction frame (200); a display unit (310) is arranged on the front surface of the control box (300); a processor (320) and a control module (330) are arranged in the inner cavity of the control box (300); the processor (320) is electrically connected to the humidity sensor (170) and the displacement sensor (230) through input; the processor (320) is electrically connected to the display unit (310) and the control module (330) through output; and the control module (330) is electrically connected to the metering solenoid valve (260) through output.

2. A test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: Supporting legs (110) are arranged at the four corners of the bottom of the base (100), and a suction cup is arranged at the bottom of the supporting legs (110).

3. A test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: The air source pressure assembly (150) comprises an air pressure source and a piston pressure rod.

4. The test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: The outer diameter of the bottom plate (160) is the same as the inner diameter of the soil sample bucket (140).

5. The test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: A liquid discharge port is provided on one side of the soil sample bucket (140).

6. The test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: The display unit (310) comprises a display screen and a speaker.

7. The test device for measuring deformation and permeability of coarse-grained saline soil according to claim 1, characterized in that: The control box (300) is connected to an external power source via a wire.

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