Rock-soil thermoosmosis coupling performance testing device
By using electric telescopic rods and rubber sleeve design in the geotechnical thermal seepage coupling performance test device, the problems of sample stability and multi-angle regulation under high temperature and high pressure conditions are solved, and high-precision and safe experimental results are achieved, improving experimental efficiency and accuracy.
Patent Information
- Application Number
- CN202422378861.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing geotechnical thermal permeability testing equipment is difficult to maintain the stability and accuracy of samples under high temperature and high pressure conditions, and lacks multi-angle and multi-directional control methods, resulting in large errors in experimental results and is difficult to provide an effective reference for actual engineering.
A geotechnical thermal seepage coupling performance testing device is adopted, and the symmetrically distributed electric telescopic rod and rubber sleeve design is used to achieve flexible adjustment of the height and angle of the support plate. Combined with the electric lifting function, it ensures multi-angle testing of the sample under different conditions, while enhancing the stability and protection performance of the device.
It improves the accuracy and safety of the experiment, reduces artificial errors, ensures the accuracy and repetition of the experimental results, and improves the convenience of operation and experimental efficiency.
Smart Images
Figure CN223205331U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rock-soil thermal-seepage coupling, in particular to a rock-soil thermal-seepage coupling performance testing device. Background Art
[0002] Thermal-permeability coupling of geotechnical materials is a key research topic in geotechnical engineering. In particular, the thermal permeability of geotechnical materials plays a crucial role in the design, operation, and safety of projects involving thermal-hydraulic-mechanical multi-field coupling, such as tunneling, underground energy storage, and geothermal development. In practical engineering applications, geotechnical materials are often exposed to complex environments, such as high temperature and high pressure, which can affect their thermal conductivity, permeability, and mechanical properties to varying degrees. Therefore, studying the mechanical behavior and permeability characteristics of geotechnical materials under thermal-permeability coupling is of great significance.
[0003] Traditional geotechnical permeability testing is limited to single-factor testing, such as independent studies of thermal conductivity or permeability. However, these studies fail to fully reflect the comprehensive response of geotechnical materials in actual engineering projects. Thermo-permeability coupling, however, combines multiple factors to better simulate actual conditions and provide more practical guidance for test results. However, due to equipment limitations, thermo-permeability coupling experiments are often difficult to conduct. Existing testing equipment often cannot precisely control both thermal and permeability conditions, and it is difficult to maintain sample stability and the accuracy of experimental results during testing.
[0004] Furthermore, many traditional testing devices have limited adjustment methods, often relying on manual adjustments to height and angle, making it difficult to precisely adjust and control experimental conditions. Furthermore, the lack of multi-angle and multi-directional control options for samples makes it difficult to guarantee the repeatability and accuracy of experimental results. This limitation not only affects experimental efficiency but can also lead to large errors in experimental data, making it difficult to provide an effective reference for practical engineering applications. Utility Model Content
[0005] The purpose of this utility model is to solve the technical problems raised in the above background technology.
[0006] The utility model adopts the following technical scheme: a rock and soil thermal seepage coupling performance testing device, comprising a movable base, a support base fixedly installed on the surface of the movable base, a lifting platform slidably connected inside the support base, a support plate fixedly installed on the surface of the lifting platform, a vertical pole fixedly installed on the surface of the support plate, a top plate fixedly installed on the top of the vertical pole, a fixed plate fixedly installed on the inner side of the vertical pole, a rotating rod rotatably connected inside the fixed plate, a placement frame fixedly installed on the surface of the rotating rod, a No. 1 connecting seat fixedly installed on the bottom surface of the placement frame, a side plate fixedly installed on the surface of the support plate, a No. 2 connecting seat fixedly installed on the surface of the side plate, and a No. 2 electric telescopic rod rotatably connected inside the No. 1 connecting seat and the No. 2 connecting seat.
[0007] Preferably, two sets of first-order electric telescopic rods are fixedly mounted between the support plate and the mobile base, symmetrically distributed across the surface of the mobile base. This helps improve the stability and load-bearing capacity of the device. Adjustment of the electric telescopic rods allows for height adjustment of the support plate, flexibly adapting to different experimental requirements. Furthermore, the electric control of the first-order electric telescopic rods makes operation more convenient and precise, reducing errors caused by manual adjustment.
[0008] Preferably, the top plate has a notch formed on its surface, and the notch is located directly above the placement frame. This facilitates observation, adjustment, or addition of testing instruments to the soil and rock samples within the placement frame from above during testing. The notch also avoids the need for additional structural adjustments above the device, improving testing convenience and operational efficiency.
[0009] Preferably, the placement frame and the second electric telescopic rod are located on the same plane. This helps the second electric telescopic rod to stably push the placement frame to rotate in the center of the side panel, avoiding tilting or displacement problems caused by uneven force, thereby improving accuracy and safety during the experiment.
[0010] Preferably, the side panels are arranged in two sets, symmetrically on the inner side of the vertical pole, with the placement frame centered between the two sets. This helps enhance the overall stability of the device, ensuring that the placement frame does not wobble during testing. Furthermore, the symmetrical placement of the side panels facilitates adjustments and testing from both sides, making the device more user-friendly.
[0011] Preferably, the corners of the movable base and support plate are fitted with rubber sleeves, each having a perforated surface. The surfaces of the movable base and support plate also have fixing holes, with bolts securing the fixing holes to the perforated holes. This helps improve the overall protection of the device and prevents violent collisions with other components when the device is moved.
[0012] Preferably, the positions of the fixing holes and the perforations correspond one to one, and the diameters of the fixing holes and the perforations are consistent. This facilitates assembly and disassembly of the rubber sleeve, ensures that the bolts can pass through smoothly and securely when fixing, and reduces the problem of loosening of the device due to misalignment or mismatched hole diameters.
[0013] Compared with the prior art, the advantages and positive effects of the present invention are:
[0014] 1. In the present invention, the symmetrically distributed No. 1 electric telescopic rod can not only flexibly adjust the height of the device, but also adjust the position of the support plate according to needs during the experiment, reducing the error caused by manual adjustment, making the operation more convenient and accurate. The stable connection between the support plate and the vertical pole and the top plate, plus the stable combination of the placement frame and the No. 2 electric telescopic rod, enables the position of the sample to obtain test results at different angles when conducting rock and soil thermal seepage coupling experiments, while avoiding problems such as tilt or displacement that affect the experimental accuracy.
[0015] 2. In the present invention, rubber sleeves are installed at the corners of the mobile base and the support plate, which further improves the safety and protection performance of the device. The design of the rubber sleeves can effectively reduce the external impact or collision that the experimental device may be subjected to during movement. At the same time, it has anti-slip and shock-absorbing functions to ensure the stability of the device in different experimental sites. The rubber sleeves are tightly connected to the fixing holes through bolts to ensure the firmness of the device during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a rock and soil thermal seepage coupling performance testing device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of a mobile base of a rock and soil thermal seepage coupling performance testing device proposed in the utility model;
[0018] Figure 3 A schematic diagram of a placement frame for a geotechnical thermal-permeability coupling performance testing device proposed in the present invention;
[0019] Figure 4 The utility model provides a schematic diagram of a rubber sleeve for a rock and soil thermal seepage coupling performance testing device.
[0020] Legend:
[0021] 1. Mobile base; 2. Support base; 3. Support plate; 4. Lifting platform; 5. No. 1 electric telescopic rod; 6. Vertical pole; 7. Top plate; 8. Fixed plate; 9. Rotating rod; 10. Placement frame; 11. No. 1 connecting base; 12. Side plate; 13. No. 2 connecting base; 14. No. 2 electric telescopic rod; 15. Fixing hole; 16. Rubber sleeve; 17. Through hole; 18. Bolt. DETAILED DESCRIPTION
[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Example 1
[0025] See also Figure 1-3The utility model provides a technical solution: a geotechnical thermal seepage coupling performance testing device, comprising a mobile base 1, a support base 2 is fixedly installed on the surface of the mobile base 1, a lifting platform 4 is slidably connected inside the support base 2, a support plate 3 is fixedly installed on the surface of the lifting platform 4, a No. 1 electric telescopic rod 5 is fixedly installed between the support plate 3 and the mobile base 1, the number of the No. 1 electric telescopic rod 5 is two groups, and the two groups of No. 1 electric telescopic rods 5 are symmetrically distributed on the surface of the mobile base 1, which helps to improve the stability and bearing capacity of the device. By adjusting the electric telescopic rod, the height of the support plate 3 can be adjusted, thereby flexibly adapting to different experimental requirements. In addition, the electric control of the No. 1 electric telescopic rod 5 makes the operation more convenient and accurate, reducing the error caused by manual adjustment. A vertical pole 6 is fixedly installed on the surface of the support plate 3, and a top plate 7 is fixedly installed on the top of the vertical pole 6. A notch is opened on the surface of the top plate 7, and the notch is located just above the placement frame 10, so that the geotechnical sample in the placement frame 10 can be observed, adjusted or added to the test instrument from above during the test. At the same time, the presence of the notch can also avoid additional structural adjustments on the top of the device. To improve the convenience and operational efficiency of the test, a fixing plate 8 is fixedly installed on the inner side of the vertical pole 6, and a rotating rod 9 is connected to the inner side of the fixing plate 8 in rotation. A placement frame 10 is fixedly installed on the surface of the rotating rod 9, and a No. 1 connecting seat 11 is fixedly installed on the bottom surface of the placement frame 10. A side plate 12 is fixedly installed on the surface of the support plate 3, and a No. 2 connecting seat 13 is fixedly installed on the surface of the side plate 12. The No. 1 connecting seat 11 and the No. 2 connecting seat 13 are internally connected to the No. 2 electric telescopic rod 14 in rotation. The placement frame 10 and the No. 2 electric telescopic rod 14 are located on the same plane, which helps to make the No. 2 electric telescopic rod 14 stably pushes the placement frame 10 to rotate in the center of the side plate 12, avoiding the problem of tilting or displacement due to uneven force, thereby improving the accuracy and safety during the experiment. The number of side plates 12 is two groups, and the two groups of side plates 12 are symmetrically distributed on the inner side of the vertical pole 6, and the placement frame 10 is in the center of the two groups of side plates 12, which helps to enhance the overall stability of the device and ensure that the placement frame 10 will not shake during the test. At the same time, the symmetrical distribution of the side plates 12 also facilitates the experimental operator to adjust or detect from both sides, increasing the convenience of using the device.
[0026] Example 2
[0027] See also Figure 4The corners of the mobile base 1 and the support plate 3 are both installed with rubber sleeves 16, and the surface of the rubber sleeves 16 is provided with through holes 17. The surfaces of the mobile base 1 and the support plate 3 are both provided with fixing holes 15. The fixing holes 15 and the through holes 17 are internally fixedly connected with bolts 18, which helps to improve the protection of the entire device and avoid violent collisions with other component structures when the device is moved. The positions of the fixing holes 15 and the through holes 17 correspond one to one, and the diameters of the fixing holes 15 and the through holes 17 are consistent, which is conducive to the assembly and disassembly of the rubber sleeves 16, ensuring that the bolts 18 can pass through smoothly and be firmly connected when fixed, reducing the problem of loosening of the device caused by dislocation or mismatch of apertures.
[0028] Working principle: First, the geotechnical sample is fixed in the placement frame 10, and the placement frame 10 is connected to the entire test device through the fixing plate 8 and the rotating rod 9. The rotating rod 9 allows the placement frame 10 to rotate inside the fixing plate 8 to ensure that the sample can be easily adjusted in angle according to the test environment in the device. The angle adjustment of the placement frame 10 is achieved by pushing the placement frame 10 to rotate through the No. 2 electric telescopic rod 14, which ensures the flexibility and accuracy of the test. The overall height of the device can be flexibly adjusted through the No. 1 electric telescopic rod 5, so that the operator can adjust the height position of the support plate 3 and the sample according to the specific needs of the experiment, thereby realizing multi-angle testing of the sample under different conditions. At the same time, the automatic control of the electric lifting function also greatly improves the convenience and accuracy of the operation, and reduces the errors that may occur during manual adjustment. During the test, the geotechnical samples will be exposed to controllable thermal conditions and penetration pressure. This thermal penetration The coupled testing method can simulate the combined effects of heating, humidity changes and osmotic pressure on rock and soil in a real environment to detect the mechanical properties and structural changes of rock and soil. Through the slot design on the top plate 7, the experimenter can observe the condition of the sample in real time from above the device, and manually adjust the experimental conditions or add detection equipment when necessary. This not only improves the convenience of operation, but also avoids additional structural adjustments for observing or adjusting samples, effectively improving the experimental efficiency. In addition, in order to ensure the stability and protection performance of the experimental device, rubber sleeves 16 are installed at the corners of the mobile base 1 and the support plate 3. The rubber sleeves 16 are tightly fixed to the base and support plate 3 by bolts 18 to ensure that the device will not be displaced during use. While ensuring the stability of the equipment, it also improves the safety of the experiment, especially when the position needs to be changed during multiple moves or experiments, it can effectively avoid collisions or loosening of the device.
[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A device for testing the coupled performance of geotechnical thermal seepage, comprising a mobile base (1), characterized in that: The surface of the movable base (1) is fixedly mounted with a support base (2), the interior of the support base (2) is slidably connected with a lifting platform (4), the surface of the lifting platform (4) is fixedly mounted with a support plate (3), the surface of the support plate (3) is fixedly mounted with a vertical rod (6), the top end of the vertical rod (6) is fixedly mounted with a top plate (7), the inner side of the vertical rod (6) is fixedly mounted with a fixed plate (8), the interior of the fixed plate (8) is rotatably connected with a rotating rod (9), the surface of the rotating rod (9) is fixedly mounted with a placement frame (10), the bottom surface of the placement frame (10) is fixedly mounted with a No. 1 connecting seat (11), the surface of the support plate (3) is fixedly mounted with a side plate (12), the surface of the side plate (12) is fixedly mounted with a No. 2 connecting seat (13), and the interiors of the No. 1 connecting seat (11) and the No. 2 connecting seat (13) are rotatably connected with a No. 2 electric telescopic rod (14).
2. The rock and soil thermal seepage coupling performance testing device according to claim 1, characterized in that: A number one electric telescopic rod (5) is fixedly installed between the support plate (3) and the mobile base (1), and the number of the number one electric telescopic rod (5) is two groups, and the two groups of the number one electric telescopic rods (5) are symmetrically distributed on the surface of the mobile base (1).
3. The rock and soil thermal seepage coupling performance testing device according to claim 1, characterized in that: A notch is provided on the surface of the top plate (7), and the notch is located directly above the placement frame (10).
4. The rock and soil thermal seepage coupling performance testing device according to claim 1, characterized in that: The placement frame (10) and the second electric telescopic rod (14) are located on the same plane.
5. The rock and soil thermal seepage coupling performance testing device according to claim 1, characterized in that: The number of the side panels (12) is two groups, and the two groups of side panels (12) are symmetrically distributed on the inner side of the vertical pole (6), and the placement frame (10) is located in the center of the two groups of side panels (12).
6. The rock and soil thermal seepage coupling performance testing device according to claim 1, characterized in that: The corners of the movable base (1) and the support plate (3) are both provided with rubber sleeves (16), the surface of the rubber sleeves (16) is provided with through holes (17), the surfaces of the movable base (1) and the support plate (3) are both provided with fixing holes (15), and the fixing holes (15) and the through holes (17) are fixedly connected with bolts (18) inside.
7. The rock and soil thermal seepage coupling performance testing device according to claim 6, characterized in that: The positions of the fixing holes (15) and the through holes (17) correspond one to one, and the diameters of the fixing holes (15) and the through holes (17) are consistent.