CN215598861U - Linear lateral pressure applying device for indoor three-dimensional geomechanical model test - Google Patents
Linear lateral pressure applying device for indoor three-dimensional geomechanical model test Download PDFInfo
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- CN215598861U CN215598861U CN202120918306.0U CN202120918306U CN215598861U CN 215598861 U CN215598861 U CN 215598861U CN 202120918306 U CN202120918306 U CN 202120918306U CN 215598861 U CN215598861 U CN 215598861U
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Abstract
The utility model relates to the technical field of mechanical testing devices, and provides a linear side pressure applying device for an indoor three-dimensional geomechanical model test. The device comprises a servo loader, a reaction frame, a front loading plate, a high-strength spring and a rear loading plate; one end of the servo loader is rigidly connected with a reaction frame embedded in the foundation, and the other end of the servo loader is connected with the rear loading plate; the servo loaders on the two sides are synchronously loaded and have consistent moving strokes; the rear loading plate is integrated on each side; the front loading plate is connected with the rear loading plate through a high-strength spring; the front loading plates are provided with a plurality of front loading plates on each side and can be spliced up and down, and the number of the front loading plates is the same as that of the high-strength springs. Compared with the prior art, the gradient loading of the lateral force of the model is realized due to the fact that the rigidity of the springs at different heights is different. The device has the advantages of simple structure, convenient operation and high test precision, and overcomes the defect that the existing equipment can not well realize the linear loading of the side pressure.
Description
Technical Field
The utility model relates to the technical field of mechanical testing devices, and particularly provides a linear side pressure applying device for an indoor three-dimensional geomechanical model test.
Background
The three-dimensional geomechanical model can simulate the mechanical relationship between rock-soil bodies and structures in actual engineering more and more, so that the three-dimensional geomechanical model is increasingly applied to the rock-soil engineering, particularly the field of tunnel engineering, and the stress deformation characteristics of surrounding rocks and structures in the excavation and support process of a tunnel are researched through indoor tests, so that guidance is provided for tunnel design and construction. It is known that the pressure of the tunnel horizontally towards the surrounding rock increases with the depth, however, the existing equipment can not realize linear loading of the lateral pressure well, and mostly adopts uniform load for loading approximately. The existing solution is realized by adding a large number of servo pushers, so that the cost of the three-dimensional geomechanical model is greatly increased, and the failure rate and the maintenance cost of the equipment are obviously increased.
Disclosure of Invention
In order to solve the technical problems: the utility model provides the linear side pressure applying device for the indoor three-dimensional geomechanical model test, which has the advantages of simple structure, convenience in operation and high test precision.
The utility model relates to a linear side pressure applying device for an indoor three-dimensional geomechanical model test, which comprises a servo loader 1, a reaction frame 2, a front loading plate 3, a high-strength spring 4 and a rear loading plate 5; one end of the servo loader 1 is rigidly connected with a reaction frame 2 embedded in a foundation 6, and the other end of the servo loader is connected with a rear loading plate 5; the servo loaders 1 on the two sides are synchronously loaded and have consistent moving strokes; the rear loading plate 5 is integrated with one side; the front loading plate 3 is connected with the rear loading plate 5 through a high-strength spring 4; the front loading plates 3 are provided with a plurality of parts on each side and can be spliced up and down, and the number of the front loading plates is the same as that of the high-strength springs 4.
According to the linear side pressure applying device for the indoor three-dimensional geomechanical model test, the loading plates 3 and 5 are steel plates.
According to the linear side pressure applying device for the indoor three-dimensional geomechanical model test, the rigidity of the high-strength spring 4 is increased from top to bottom in sequence.
Compared with the prior art, the gradient loading of the lateral force of the model is realized due to the fact that the rigidity of the springs at different heights is different. The device has the advantages of simple structure, convenient operation and high test precision, and overcomes the defect that the existing equipment can not well realize the linear loading of the side pressure.
Description of the drawings:
fig. 1 is a schematic overall structure diagram of an indoor three-dimensional geomechanical model test linear side pressure applying device provided by the present invention. Wherein: 1-a servo loader; 2-a reaction frame; 3-front loading plate; 4-high-strength spring; 5-rear loading plate.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and examples, but the scope of protection is not limited to the specific examples below.
Example 1
A linear side pressure applying device for an indoor three-dimensional geomechanical model test comprises a servo loader 1, a reaction frame 2, a front loading plate 3, a high-strength spring 4 and a rear loading plate 5; one end of the servo loader 1 is rigidly connected with a reaction frame 2 embedded in a foundation 6, and the other end of the servo loader is connected with a rear loading plate 5; the servo loaders 1 on the two sides are synchronously loaded and have consistent moving strokes; the rear loading plate 5 is integrated with one side; the front loading plate 3 is connected with the rear loading plate 5 through a high-strength spring 4; the front loading plates 3 are provided with a plurality of parts on each side and can be spliced up and down, and the number of the front loading plates is the same as that of the high-strength springs 4. The loading plates 3 and 5 are steel plates. The rigidity of the high-strength spring 4 is increased from top to bottom in sequence.
Compared with the prior art, the gradient loading of the lateral force of the model is realized due to the fact that the rigidity of the springs at different heights is different. The device has the advantages of simple structure, convenient operation and high test precision, and overcomes the defect that the existing equipment can not well realize the linear loading of the side pressure.
Claims (3)
1. The linear side pressure applying device for the indoor three-dimensional geomechanical model test is characterized by comprising a servo loader (1), a reaction frame (2), a front loading plate (3), a high-strength spring (4) and a rear loading plate (5); one end of the servo loader (1) is rigidly connected with a reaction frame (2) embedded in a foundation (6), and the other end of the servo loader is connected with a rear loading plate (5); the servo loaders (1) on the two sides are synchronously loaded and have consistent moving strokes; the rear loading plate (5) is integrated with one side; the front loading plate (3) is connected with the rear loading plate (5) through a high-strength spring (4); the front loading plates (3) are arranged on each side and can be spliced up and down, and the number of the front loading plates is the same as that of the high-strength springs (4).
2. The indoor three-dimensional geomechanical model test linear side pressure applying device of claim 1, wherein the front load plate (3) and the rear load plate (5) are high strength steel plates.
3. The indoor three-dimensional geomechanical model test linear side pressure applying device of claim 1, characterized in that the stiffness of the high tensile spring (4) is increased from top to bottom in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120918306.0U CN215598861U (en) | 2021-04-29 | 2021-04-29 | Linear lateral pressure applying device for indoor three-dimensional geomechanical model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120918306.0U CN215598861U (en) | 2021-04-29 | 2021-04-29 | Linear lateral pressure applying device for indoor three-dimensional geomechanical model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215598861U true CN215598861U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120918306.0U Expired - Fee Related CN215598861U (en) | 2021-04-29 | 2021-04-29 | Linear lateral pressure applying device for indoor three-dimensional geomechanical model test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215598861U (en) |
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2021
- 2021-04-29 CN CN202120918306.0U patent/CN215598861U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220121 |