CN210090170U - Novel confined pressure controllable model test soil box - Google Patents
Novel confined pressure controllable model test soil box Download PDFInfo
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- CN210090170U CN210090170U CN201920789040.7U CN201920789040U CN210090170U CN 210090170 U CN210090170 U CN 210090170U CN 201920789040 U CN201920789040 U CN 201920789040U CN 210090170 U CN210090170 U CN 210090170U
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- box body
- oil
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- steel bracket
- rubber film
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a novel confined pressure controllable model test soil box, include: the device comprises a box body, a steel bracket, an oil pressure pipe, a rubber film, a rubber layer oil belt, a push plate and an oil pushing engine; a rubber film is arranged at the center of the interior of the box body, and the box body and the rubber film are concentric cylinders; a steel bracket is arranged at the upper end of the box body; a push plate is arranged at the upper end in the rubber film; a knob is arranged on the steel bracket, the knob penetrates through the steel bracket, and the bottom end of the knob is arranged on the push plate; pressure sensors are arranged on the inner side wall of the rubber film and the bottom surface of the push plate; the bottom end of the box body is provided with a circular rigid bottom surface; a rubber layer oil belt is arranged between the box body and the rubber film; an oil pressure pipe is arranged on the side surface of the box body; an oil pushing engine is arranged at the tail end of the oil pressure pipe. This device reasonable in design, convenient to use can provide a confined pressure controllable environment for experimental soil sample through the design of side direction rubber membrane and top knob.
Description
Technical Field
The utility model belongs to the technical field of high confining pressure equipment technique and specifically relates to a novel controllable model test soil box of confining pressure is related to.
Background
With the development of national economy, the number of deep-buried projects in China is rapidly increased. These deep-buried projects are all in high ground stress and high confining pressure environment, and at present, when carrying out the static and dynamic property research of deep-buried projects, it is necessary to provide high confining pressure medium environment for the model body. In the conventional model test, the conventional rigid model box, flexible model box and shearing model box are all open, and the technical condition for providing confining pressure is not met. Therefore, the dynamic and static mechanics research of the deep buried structure can not be realized by the existing model test soil box. Only the centrifuge test can simulate a high confining pressure environment at present, but the centrifuge test requires a model to be too small to perform a large-scale test. Therefore, in order to better study the dynamic and static mechanical properties of deep-buried engineering under the condition of high ground stress, a novel model test soil box with controllable confining pressure is needed to provide a high confining pressure environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel confined pressure controllable model test soil box.
To achieve the above object, the present invention adopts the following:
the utility model provides a novel controllable model test soil box of confined pressure, includes: the oil-pushing device comprises a box body, a steel bracket, a round rigid bottom surface, a knob, an oil pressure pipe, a rubber film, a rubber layer oil belt, a pressure sensor, a push plate and an oil-pushing engine; a rubber film is arranged at the center of the interior of the box body, and the box body and the rubber film are concentric cylinders; arranging a steel bracket at the upper end of the box body; a push plate is arranged at the upper end in the rubber film; the steel bracket is provided with a knob, the knob penetrates through the steel bracket, and the bottom end of the knob is arranged on the push plate; pressure sensors are arranged on the inner side wall of the rubber film and the bottom surface of the push plate; a circular rigid bottom surface is arranged at the bottom end of the box body; a rubber layer oil belt is arranged between the box body and the rubber film; an oil pressure pipe is arranged on the side face of the box body, and one end of the oil pressure pipe penetrates through the box body and is communicated with the rubber layer oil belt; and an oil pushing engine is arranged at the tail end of the oil pressure pipe.
Preferably, the case is made of a high-strength rigid steel plate.
Preferably, the circular rigid bottom surface is made of a high-strength circular rigid steel plate; bolt holes are respectively formed in the four directions of the round rigid bottom surface, namely the front direction, the rear direction, the left direction and the right direction.
Preferably, the number of the knobs is four, and the knobs are respectively arranged in the front, the rear, the left and the right directions of the steel bracket.
Preferably, the steel bracket and the box body are fixed by welding.
Preferably, a stiffening rib is further included; the stiffening ribs are four and are respectively welded at the geometric center of the outer side of the box body and on the supporting platform of the circular rigid bottom surface.
Preferably, the knob is connected with the steel bracket through threads; the bottom end of the knob is movably connected with the steel plate.
The utility model has the advantages of it is following:
1. the design of this device through side direction rubber membrane, rubber blanket oil band and top knob can provide the controllable environment of confined pressure for burying engineering test soil sample deeply.
2. The test model soil box of the device can be designed into various size specification forms according to requirements.
3. The large-size model box can provide a confining pressure environment closer to reality for a large-scale model test, so that the design scheme of the deep-buried engineering is effectively researched and evaluated, the design rationality of the deep-buried engineering is improved, and the possible problems of the deep-buried engineering are predicted.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a novel controllable model test soil box's of confined pressure cross-sectional view.
Fig. 2 is the utility model discloses a novel controllable model test soil box's of confined pressure plan view.
In the figures, the various reference numbers are:
1-box body, 2-steel bracket, 3-round rigid bottom surface, 4-bolt hole, 5-knob, 6-oil pressure pipe, 7-stiffening rib, 8-rubber film, 9-rubber layer oil belt, 10-pressure sensor, 11-push plate, 12-push oil engine.
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1 and 2, a novel confined pressure controllable model test soil box comprises: the device comprises a box body 1, a steel bracket 2, a circular rigid bottom surface 3, a knob 5, an oil pressure pipe 6, a rubber film 8, a rubber layer oil belt 9, a pressure sensor 10, a push plate 11 and an oil pushing motor 12; a rubber film 8 is arranged at the center of the interior of the box body 1, and the box body 1 and the rubber film 8 are concentric cylinders; a steel bracket 2 is arranged at the upper end of the box body 1; a push plate 11 is arranged at the middle upper end in the rubber membrane 8; a knob 5 is arranged on the steel bracket 2, the knob 5 penetrates through the steel bracket 2, and the bottom end of the knob 5 is arranged on the push plate 11; pressure sensors 10 are arranged on the inner side wall of the rubber film 8 and the bottom surface of the push plate 11; a round rigid bottom surface 3 is arranged at the bottom end of the box body 1; a rubber layer oil belt 9 is arranged between the box body 1 and the rubber film 8; an oil pressure pipe 6 is arranged on the side surface of the box body 1, and one end of the oil pressure pipe 6 penetrates through the box body 1 and is communicated with an oil belt 9 of a rubber layer; an oil pushing engine 12 is arranged at the tail end of the oil pressure pipe 6.
Further, the case 1 is made of a high-strength rigid steel plate.
Further, the circular rigid bottom surface 3 is made of a high-strength circular rigid steel plate; bolt holes 4 are respectively arranged in the four directions of the round rigid bottom surface 3 in the front, back, left and right directions.
Further, there are four knobs 5, and the four knobs are respectively arranged in the front, rear, left and right directions of the steel bracket 2.
Further, the steel bracket 2 and the box body 1 are fixed by welding.
Further, a stiffening rib 7 is also included; four stiffening ribs 7 are arranged and respectively welded at the geometric center of the outer side of the box body 1 and on the supporting platform of the circular rigid bottom surface 3.
Further, the knob 5 is connected with the steel bracket 2 through threads; the bottom end of the knob 5 is movably connected with the push plate 11.
This device is at the during operation: the device is in a double-cylinder shape with a closed top, a high-strength circular rigid steel plate is arranged on the bottom surface of an outer cylinder of a box body 1, and four bolt holes 4 are formed in the high-strength circular rigid steel plate and used for fixing a model box on a vibration table; the side surface of the box body 1 is made of high-strength rigid steel plates, and the outer side of the box body is connected with an oil pressure pipe 6 and a stiffening rib 7 for providing lateral force for the model box.
A high-strength rubber layer oil belt 9 is attached to the inner side of the box body 1 and used for loading oil and providing lateral confining pressure for a test soil sample.
Two pressure sensors 10 are mounted on the inner side surface of the rubber diaphragm 8, and one pressure sensor 10 is mounted at the bottom of the steel plate; a knob 5 is attached to the steel bracket 2 for physical compression of the top screw.
The bottom surface of the box body 1 is composed of Q325 rigid steel plates. The side surface is formed by welding a stiffening rib 7 and a Q325 steel plate from inside to outside in sequence. The rigidity of the Q325 rigid steel plate can meet the requirement of the test on the rigidity, and when the vibrating table is tested, the steel plate at the bottom of the model box can be well attached to the table top of the vibrating table to form an integral panel.
Four stiffening ribs 7 are welded on the outer side surface of the box body 1. One end of the stiffening rib 7 is welded at the geometric center of the outer side surface of the box body 1, and the other end is welded on the bottom saddle. The design of the stiffening ribs 7 enables the model box to be more stable when the vibration table test is carried out, and avoids the model box from deviating when the model box vibrates violently, so that the reliability of the model test is improved. The inner side surface is adhered with a rubber layer oil belt 9 with the same height as the box 1 by strong glue, and a lateral confining pressure is provided for the test soil sample by adding oil to the rubber layer oil belt 9. The design of the rubber layer oil belt 9 can effectively reduce the influence of the boundary effect on the test.
Four rigid knobs 5 are welded at the top of the box body 1, the knobs 5 are screwed to extrude a steel plate to simulate the confining pressure of the upper part of the test soil sample in the test process, and the pressure sensor 10 is loaded below the push plate 11, so that the confining pressure of the upper part of the test soil sample can be accurately measured. The mutually vertical knobs 5 also make the confining pressure loading more uniform, and the reliability of the test is improved.
The circular rigid bottom surface 3 at the bottom of the box body 1 is a circular steel plate with the area of 1.44 pi square meter, the surface of the steel plate is provided with bolt holes 4, and the steel plate is fixed on a vibration table through the bolt holes 4 by using bolts. The bolts are M10.9 high-strength bolts, and the number of the bolt holes 4 is four.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel controllable model test soil box of confined pressure which characterized in that includes: the oil-pushing device comprises a box body, a steel bracket, a round rigid bottom surface, a knob, an oil pressure pipe, a rubber film, a rubber layer oil belt, a pressure sensor, a push plate and an oil-pushing engine; a rubber film is arranged at the center of the interior of the box body, and the box body and the rubber film are concentric cylinders; arranging a steel bracket at the upper end of the box body; a push plate is arranged at the upper end in the rubber film; the steel bracket is provided with a knob, the knob penetrates through the steel bracket, and the bottom end of the knob is arranged on the push plate; pressure sensors are arranged on the inner side wall of the rubber film and the bottom surface of the push plate; a circular rigid bottom surface is arranged at the bottom end of the box body; a rubber layer oil belt is arranged between the box body and the rubber film; an oil pressure pipe is arranged on the side face of the box body, and one end of the oil pressure pipe penetrates through the box body and is communicated with the rubber layer oil belt; and an oil pushing engine is arranged at the tail end of the oil pressure pipe.
2. The novel confining pressure controllable model test soil box as claimed in claim 1, wherein the box body is made of high-strength rigid steel plate.
3. The novel confining pressure controllable model test soil box as claimed in claim 1, wherein the circular rigid bottom surface is made of a high-strength circular rigid steel plate; bolt holes are respectively formed in the four directions of the round rigid bottom surface, namely the front direction, the rear direction, the left direction and the right direction.
4. The novel confining pressure controllable model test soil box as claimed in claim 1, wherein there are four knobs, and the four knobs are respectively arranged in the four directions of the steel bracket.
5. The novel confining pressure controllable model test soil box according to claim 1 is characterized in that the steel bracket and the box body are fixed through welding.
6. The novel confining pressure controllable model test soil box according to claim 1 is characterized by further comprising stiffening ribs; the stiffening ribs are four and are respectively welded at the geometric center of the outer side of the box body and on the supporting platform of the circular rigid bottom surface.
7. The novel confining pressure controllable model test soil box according to claim 1 is characterized in that the knob is connected with the steel bracket through threads; the bottom end of the knob is movably connected with the steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789040.7U CN210090170U (en) | 2019-05-29 | 2019-05-29 | Novel confined pressure controllable model test soil box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789040.7U CN210090170U (en) | 2019-05-29 | 2019-05-29 | Novel confined pressure controllable model test soil box |
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| CN210090170U true CN210090170U (en) | 2020-02-18 |
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| CN201920789040.7U Active CN210090170U (en) | 2019-05-29 | 2019-05-29 | Novel confined pressure controllable model test soil box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082191A (en) * | 2019-05-29 | 2019-08-02 | 海南大学 | A kind of model test soil case that novel confining pressure is controllable |
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2019
- 2019-05-29 CN CN201920789040.7U patent/CN210090170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082191A (en) * | 2019-05-29 | 2019-08-02 | 海南大学 | A kind of model test soil case that novel confining pressure is controllable |
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