CN202599735U - Centrifugal dynamic model test saturation device - Google Patents
Centrifugal dynamic model test saturation device Download PDFInfo
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- CN202599735U CN202599735U CN 201220278733 CN201220278733U CN202599735U CN 202599735 U CN202599735 U CN 202599735U CN 201220278733 CN201220278733 CN 201220278733 CN 201220278733 U CN201220278733 U CN 201220278733U CN 202599735 U CN202599735 U CN 202599735U
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 230000007774 longterm Effects 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model discloses a centrifugal dynamic model test saturation device, which comprises a saturation box, at least one vacuum pump and at least one model box arranged in the saturation box, wherein the bottom of the model box is provided with a water leakage pipe which is used for conveying liquid and is provided with a plurality of holes; one end of the water leakage pipe is connected with a water conveying pipe which is vertically arranged; a test model covering the water leakage pipe is further arranged in the model box; the height of the water conveying pipe is greater than that of the test model; a solution cabinet comprises a cabinet body and an upper cover; the upper cover is provided with a mixing motor and a stirrer connected with the mixing motor; and the length of the stirrer is smaller than the height of the cabinet body. According to the centrifugal dynamic model test saturation device, the saturation degree of the test model is improved in the saturation process from the inside to the outside, the mixing uniformity of the solution can be kept in the long-term saturation process, and the quality of the solution is improved.
Description
Technical Field
The utility model relates to a device that is used for carrying out saturation to the model that geotechnique centrifugal force test used.
Background
In many engineering sciences, physical models with small scales are often needed to reveal and analyze the nature and mechanism of phenomena to verify and solve engineering practical problems. For example, in geotechnical engineering, the deadweight stress of the soil generally dominates, and the mechanical and hydraulic properties of the soil vary with the stress level. The test of the centrifugal model with small scale can adopt the same material as the prototype, and the same stress level as the prototype is achieved in the high acceleration field formed by the centrifugal test machine, so that the stress strain of the model and the prototype is equal, the deformation is similar, the failure mechanism is the same, the prototype characteristic can be reproduced, and a real and reliable parameter basis is provided for theoretical and numerical analysis methods and the like.
When a geotechnical centrifuge is used for researching rock and soil change conditions of a dam body below a sandy soil liquefaction line or a water conservancy dam wetting line under the earthquake condition, the stress conduction condition of water in a prototype needs to be simulated by using a higher dynamic viscosity coefficient of viscous liquid, so that a model used in a geotechnical centrifugal dynamic test needs to be saturated by using the viscous liquid.
However, the design of the related devices of the model used in the geotechnical centrifugal power test is not many at present, and particularly when the model used in the geotechnical centrifugal power test needs to be saturated, the existing method mainly sprays liquid on the geotechnical centrifugal model in a spraying mode, and the model is saturated by means of liquid self-weight permeation.
Chinese patent CN202033229U proposes a geotechnical centrifugal model test vacuum saturation device, but it still adopts a method of infiltration saturation from outside to inside of the model, and because the saturation process of geotechnical centrifugal model is often as long as several hours or even several days, the patent does not provide a solution for controlling the viscosity liquid to maintain stable mixing uniformity during saturation when the model is saturated with the viscosity liquid.
SUMMERY OF THE UTILITY MODEL
The utility model provides a centrifugal power model test saturation device, the reducible or aforementioned problem of avoiding of this equipment.
In order to solve the above problem, the utility model provides a centrifugal dynamic model test saturation device, it includes:
a saturation box for sealing the test pattern during saturation of the geotechnical centrifugal power pattern to create a vacuum around said test pattern,
at least one solution tank for storing a solution for saturating the geotechnical centrifugal model,
at least one vacuum pump for creating a vacuum on the saturation tank and the solution tank,
at least one mold housing disposed within said saturation housing for carrying said test pattern and delivering said solution to said test pattern,
the saturation box comprises a box body and a sealing cover, the box body is provided with an exhaust pipe and at least one liquid supply pipe, the exhaust pipe is connected with the vacuum pump,
the model box is arranged in the saturation box, the bottom of the model box is provided with a water seepage pipe with a plurality of holes on the pipe wall for conveying liquid, one end of the water seepage pipe is connected with a vertically placed water conveying pipe, the model box is further internally provided with the test model covered on the water seepage pipe, and the height of the water conveying pipe is greater than that of the test model;
the solution cabinet comprises a cabinet body and an upper cover, a drain pipe is arranged at the bottom of the cabinet body, an exhaust pipe is arranged at the upper part of the cabinet body, the exhaust pipe is connected with the vacuum pump, and the drain pipe is connected with the water delivery pipe of the model box through the liquid supply pipe of the saturation box;
the upper cover of the solution cabinet is provided with a stirring motor and a stirrer connected with the stirring motor, and the length of the stirrer is smaller than the height of the cabinet body.
Preferably, the centrifugal dynamic model test saturation device further comprises a control cabinet, and the control cabinet is respectively connected with the vacuum pump and the stirring motor.
Preferably, a solution height observation device is arranged outside the cabinet body of the solution cabinet.
Preferably, the centrifugal dynamic model test saturation device further comprises a solution supply tank, the solution supply tank comprises a solution outlet, the solution cabinet further comprises a solution supplementing port, and the solution outlet is connected with the solution supplementing port.
Preferably, the solution supplementing port, the drain pipe, the exhaust pipe of the solution cabinet and the liquid supply pipe of the saturation tank are all provided with electromagnetic valves, and the electromagnetic valves are all connected with the control cabinet.
Preferably, the stirrer is a propeller stirrer and comprises at least one group of 3 propeller blades, and the rotating shaft of the stirrer is not perpendicular to the upper cover.
Preferably, the agitator is a turbine agitator.
The utility model provides an experimental saturation device of centrifugal power model all arranges certain vacuum environment in through the solution that will be used for making geotechnological centrifugal power model saturation and test model, utilizes the gravity or the vacuum pressure differential of solution self, through the saturation process is accomplished to the infiltration pipe under the test model, can improve through from interior to exterior saturation process like this test model saturation. In the saturation process, stir solution through the agitator, can keep the mixed degree of consistency of solution like this in long-time saturation process, can have the air discharge of group in solution simultaneously, promote the quality of solution.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic structural diagram of a centrifugal dynamic model test saturation device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a solution tank of the centrifugal dynamic model test saturation device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a saturation tank of the centrifugal dynamic model test saturation apparatus shown in FIG. 1;
fig. 4 is a schematic structural view of a model box of the centrifugal dynamic model test saturation device shown in fig. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
The structure and the principle of a centrifugal dynamic model test saturation device according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a centrifugal dynamic model test saturation device according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a solution tank of the centrifugal dynamic model test saturation device shown in FIG. 1; FIG. 3 is a schematic structural diagram of a saturation tank of the centrifugal dynamic model test saturation apparatus shown in FIG. 1; fig. 4 is a schematic structural view of a model box of the centrifugal dynamic model test saturation device shown in fig. 1. Referring to fig. 1-4, the present invention provides a centrifugal dynamic model test saturation device, which comprises:
a saturation tank 1 for sealing the test pattern 5 during saturation of the geotechnical centrifugal pattern, thereby creating a vacuum around said test pattern 5,
at least one solution tank 2 for storing a solution for saturating the geotechnical centrifugal model,
at least one vacuum pump 3 for creating a vacuum in the saturation tank 1 and the solution tank 2,
at least one mold housing 4 disposed in the saturation housing 1 for carrying the test mold 5 and delivering the solution to the test mold 5,
the saturation tank 1 comprises a tank body 11 and a sealing cover 12, the tank body 11 is provided with an exhaust pipe 111 and at least one liquid supply pipe 112, the exhaust pipe 111 is connected with the vacuum pump 3,
the model box 4 is arranged in the saturation box 1, a water seepage pipe 41 with a plurality of holes is arranged on the pipe wall for conveying liquid is arranged at the bottom of the model box 4, one end of the water seepage pipe 41 is connected with a vertically placed water conveying pipe 42, the model box 4 is further internally provided with the test model 5 covered on the water seepage pipe 41, and the height of the water conveying pipe 42 is greater than that of the test model 5.
The solution tank 2 comprises a tank body 21 and an upper cover 22, a drain pipe 211 is arranged at the bottom of the tank body 21, an exhaust pipe 212 is arranged at the upper part of the tank body 21, the exhaust pipe 212 is connected with the vacuum pump 3, and the drain pipe 211 is connected with the water delivery pipe 42 of the model box 4 through the liquid supply pipe 122 of the saturation box 1.
The upper cover 22 of the solution tank 2 is provided with a stirring motor 221 and a stirrer 222 connected with the stirring motor 221, and the length of the stirrer 222 is smaller than the height of the tank body 21.
When the test model 5 needs to be saturated, the water seepage pipe 41 may be placed in a curved shape, such as a spiral shape, a horizontal serpentine shape, or a serpentine shape with a height fluctuation, at the bottom of the model box 4 according to the shape and size of the test model 5, and then the test model 5 may be placed on the water seepage pipe 41, and the vertically placed water pipe 42 connected to one end of the water seepage pipe 41 is higher than the height of the test model 5 but lower than the height of the model box 4.
After the test pattern 5 is set in the mold box 4, the mold box 4 may be placed in the box body 11, and the water pipe 42 and the liquid supply pipe 112 may be connected by a hose. Then, the box 11 is covered with the sealing cover 12, and the suction pipe 111 is connected to the vacuum pump 3.
The solution tank 2 is placed at a position higher than the saturation tank 1, the supply pipe 112 is connected to the drain pipe 211 using a pipe, and the exhaust pipe 212 is connected to the vacuum pump 3.
When the geotechnical centrifugal model needs to be saturated by using a viscous solution, the viscous solution can be prepared by using methylcellulose, the methylcellulose solution with certain viscosity is prepared according to the test requirement, after the solution is prepared, the solution is put into the cabinet body 21 of the solution cabinet 2, the solution cabinet 2 is sealed by covering the upper cover 22, the upper cover 22 is provided with a stirring motor 221 and a stirrer 222 connected with the stirring motor 221, and the length of the stirrer 222 is smaller than the height of the cabinet body 21, so that after the upper cover 22 is covered, the stirrer 222 can be immersed in the solution.
After the saturation tank 1, the solution tank 2 and the vacuum pump 3 are connected, the vacuum pump 3 is started, so that vacuum can be formed in the saturation tank 1 and the solution tank 2, and since the position of the solution tank 2 is higher than that of the saturation tank 1, when the vacuum degrees in the saturation tank 1 and the solution tank 2 are the same, the solution can flow into the water pipe 42 through a pipeline under the action of self gravity, and permeate and saturate from the inside of the test model 5 to the outside of the test model 5 by overcoming the permeability of the test model 5 through the holes on the water seepage pipe 41.
Of course, the saturation rate of the solution to the test model 5 can also be adjusted by adjusting the vacuum degree in the saturation tank 1 and the solution tank 2 so that the solution tank 2 and the saturation tank 1 form a pressure difference.
In the saturation process, the stirrer 222 is stirred in the solution by the stirring motor 221, so that the mixing uniformity of the solution can be maintained in the long-term saturation process, and meanwhile, air in the solution can be discharged, and the quality of the solution is improved.
After the test model 5 is saturated, the atmospheric pressure of the saturation tank 1 and the solution tank 2 can be recovered, the sealing cover 12 is opened, and the model tank 4 is taken out of the saturation tank 1 and then put into a geotechnical centrifuge for further test.
In a preferred embodiment, the centrifugal dynamic model test saturation device further comprises a control cabinet 6, and the control cabinet 6 is respectively connected with the vacuum pump 3 and the stirring motor 221. This makes it possible to collectively control the vacuum pump 3 and the stirring motor 221 via the control cabinet.
In a preferred embodiment, the sealing cover 12 is provided with a transparent viewing window 121. The sealing cover 12 may be provided with a transparent observation window 121 using organic glass so that the degree of saturation of the test pattern 5 can be observed at any time.
In a preferred embodiment, a solution height observing device 213 is arranged outside the cabinet body 21 of the solution cabinet 2. The solution height observing device 213 may be a closed hollow organic glass tube with two ends respectively communicated with the upper end and the lower end of the cabinet body 21, so that the volume of the solution in the solution cabinet 2 can be observed from the solution height observing device 213 at any time.
In a preferred embodiment, the saturation device for centrifugal dynamic model test further comprises a solution supply tank 7, the solution supply tank 7 comprises a solution outlet, and the solution tank 2 further comprises a solution supply port 23, and the solution outlet is connected with the solution supply port 23. When the test model 5 needs more solutions, the solution can be placed in the solution supply tank 7, and the solution can be conveniently supplied to the solution cabinet 2 at any time in the saturation process.
In a preferred embodiment, the fluid infusion port 23 of the solution tank 2, the drain pipe 211, the exhaust pipe 212 and the liquid supply pipe 112 of the saturation tank 1 are all provided with electromagnetic valves 8, and the electromagnetic valves 8 are all connected with the control cabinet 6. Thus, the vacuum degrees of the saturation tank 1 and the solution tank 2, the solution supplement degree of the solution tank 2 and the flow rate of the solution entering the saturation tank 1 can be adjusted in a centralized manner through the control cabinet 6 at any time.
In a preferred embodiment, the stirrer 222 is a propeller stirrer including at least one set of 3 propeller blades, and the rotation axis of the stirrer 222 is not perpendicular to the upper cover 22. Thus, the rotation shaft of the stirrer 222 is obliquely inserted into the solution, so that when the solution is stirred, the circulation loop of the liquid flow is asymmetric, turbulence can be increased, and the solution can be mixed more fully.
In a preferred embodiment, the agitator 222 is a turbine agitator. This can cause highly turbulent radial flow during rotation, resulting in more complete mixing of the solution.
The utility model provides a centrifugal power model test saturation device through all arranging solution and test model in certain vacuum environment, utilizes the gravity or the vacuum pressure differential of solution self, through the saturation process is accomplished to the infiltration pipe under the test model, can improve through from interior to exterior saturation process like this test model saturation. In the saturation process, stir solution through the agitator, can keep the mixed degree of consistency of solution like this in long-time saturation process, can have the air discharge of group in solution simultaneously, promote the quality of solution.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (7)
1. A centrifugal dynamic model test saturation device comprises,
a saturation box for sealing the test pattern during saturation of the geotechnical centrifugal power pattern to create a vacuum around said test pattern;
at least one solution tank for storing a solution used to saturate the geotechnical centrifuge model;
at least one vacuum pump for creating a vacuum on the saturation tank and the solution tank;
at least one model box arranged in the saturation box and used for bearing the test model and conveying the solution to the test model;
the saturation box comprises a box body and a sealing cover, the box body is provided with an exhaust pipe and at least one liquid supply pipe, and the exhaust pipe is connected with the vacuum pump;
it is characterized in that the preparation method is characterized in that,
the model box is arranged in the saturation box, the bottom of the model box is provided with a water seepage pipe with a plurality of holes on the pipe wall for conveying liquid, one end of the water seepage pipe is connected with a vertically placed water conveying pipe, the model box is further internally provided with the test model covered on the water seepage pipe, and the height of the water conveying pipe is greater than that of the test model;
the solution cabinet comprises a cabinet body and an upper cover, a drain pipe is arranged at the bottom of the cabinet body, an exhaust pipe is arranged at the upper part of the cabinet body, the exhaust pipe is connected with the vacuum pump, and the drain pipe is connected with the water delivery pipe of the model box through the liquid supply pipe of the saturation box;
the upper cover of the solution cabinet is provided with a stirring motor and a stirrer connected with the stirring motor, and the length of the stirrer is smaller than the height of the cabinet body.
2. The centrifugal power model test saturation device according to claim 1, further comprising a control cabinet, wherein said control cabinet is connected to said vacuum pump and said stirring motor respectively.
3. The centrifugal dynamic model test saturation device according to claim 1, wherein a solution height observation device is arranged outside the tank body of the solution tank.
4. The centrifugal dynamic model test saturation device according to claim 2, wherein said centrifugal dynamic model test saturation device further comprises a solution supply tank, said solution supply tank comprises a solution outlet, said solution tank further comprises a solution supply port, and said solution outlet is connected to said solution supply port.
5. The centrifugal dynamic model test saturation device according to claim 4, wherein the liquid supplementing port, the water discharging pipe, the air discharging pipe of the solution cabinet and the liquid supplying pipe of the saturation tank are all provided with electromagnetic valves, and the electromagnetic valves are all connected with the control cabinet.
6. The centrifugal dynamic model test saturation device according to claim 1, wherein said stirrer is a propeller stirrer comprising at least one set of 3 propeller blades, and the rotation axis of said stirrer is not perpendicular to said upper cover.
7. The centrifugal dynamic model test saturation device of claim 1, wherein said agitator is a turbine agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278733 CN202599735U (en) | 2012-06-13 | 2012-06-13 | Centrifugal dynamic model test saturation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278733 CN202599735U (en) | 2012-06-13 | 2012-06-13 | Centrifugal dynamic model test saturation device |
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| CN202599735U true CN202599735U (en) | 2012-12-12 |
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| CN 201220278733 Expired - Fee Related CN202599735U (en) | 2012-06-13 | 2012-06-13 | Centrifugal dynamic model test saturation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713110A (en) * | 2013-12-19 | 2014-04-09 | 同济大学 | Landfill soil slope unstability centrifugal model testing device based on liquid-gas coupling effect |
| CN108007656A (en) * | 2016-10-27 | 2018-05-08 | 北京精密机电控制设备研究所 | A kind of device for the experiment of composite material ultracentrifugation |
| CN109959541A (en) * | 2019-04-10 | 2019-07-02 | 浙江大学 | A kind of intelligence geo- textile technique saturation device |
| CN113702119A (en) * | 2021-06-08 | 2021-11-26 | 同济大学 | Device and method for preparing low-disturbance dry sand sample on triaxial test platform |
-
2012
- 2012-06-13 CN CN 201220278733 patent/CN202599735U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713110A (en) * | 2013-12-19 | 2014-04-09 | 同济大学 | Landfill soil slope unstability centrifugal model testing device based on liquid-gas coupling effect |
| CN103713110B (en) * | 2013-12-19 | 2015-10-21 | 同济大学 | Based on the landfill yard soil slope failure centrifugal model test device of liquid gas coupling |
| CN108007656A (en) * | 2016-10-27 | 2018-05-08 | 北京精密机电控制设备研究所 | A kind of device for the experiment of composite material ultracentrifugation |
| CN108007656B (en) * | 2016-10-27 | 2020-05-22 | 北京精密机电控制设备研究所 | Device for composite material ultra-high speed centrifugal test |
| CN109959541A (en) * | 2019-04-10 | 2019-07-02 | 浙江大学 | A kind of intelligence geo- textile technique saturation device |
| CN113702119A (en) * | 2021-06-08 | 2021-11-26 | 同济大学 | Device and method for preparing low-disturbance dry sand sample on triaxial test platform |
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Granted publication date: 20121212 Termination date: 20130613 |