CN208270437U - A kind of visual test device of saturated sand microorganism consolidation by grouting - Google Patents
A kind of visual test device of saturated sand microorganism consolidation by grouting Download PDFInfo
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- CN208270437U CN208270437U CN201820818072.0U CN201820818072U CN208270437U CN 208270437 U CN208270437 U CN 208270437U CN 201820818072 U CN201820818072 U CN 201820818072U CN 208270437 U CN208270437 U CN 208270437U
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- grouting
- test box
- light source
- laser light
- transparent
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Abstract
The utility model discloses a kind of visual test devices of saturated sand microorganism consolidation by grouting, including transparent test box, grouting water tank, grout pipe, laser light source transmitter, CCD digital camera and data gathering system；The water tank that is in the milk is arranged above transparent test box, grout pipe one end is connected to grouting water tank, the other end protrudes into the upper end opening of transparent test box, side is arranged outside transparent test box in laser light source transmitter, CCD digital camera is connected with data gathering system and is located on the outside of transparent test box, and the shooting direction of CCD digital camera is vertical with the laser plane of laser light source transmitter.The experimental rig of the utility model realizes the visualization of microorganism consolidation by grouting and the real-time acquisition of overall process data, and the research for microorganism geotechnical engineering provides reliable basis；The adjustable of microorganism filling process filling rate and grouting quantity is realized by testing stand and adjusting flow meter；Structure is simple, easy to operate, high-efficient, has a extensive future.
Description
Technical field
The utility model relates to microorganism geotechnical engineering technical fields, and in particular to a kind of grouting of saturated sand microorganism plus
Solid visual test device.
Background technique
The development of transparent soil solves much using soil as the experiment problem of object, as script cannot be observed inside soil
All kinds of experiments of situation, traditional needs to be implanted into various sensors in inside soil body to observe the soil body using the experiment of common soil
Deformation etc., nowadays, the non-intrusive measurement of transparent soil has obtained the approval of numerous scholars, for example, being in the milk to saturated sand microorganism
It reinforces and carries out visual analyzing, it is intuitive to observe microorganism grouting seepage flow and cured process in the soil body, so that observation knot
Fruit is more intuitive.
Since traditional cement, lime and chemical grouting reinforcement technique cause very big dirt to environment and the soil body itself
Dye not only generates pollution to underground water, certain inhibiting effect is also generated to vegetation growth.Therefore, in order to accelerate conservation culture
Construction builds beautiful China, promotes economic society sustainable and healthy development, the progress of Microbial Biomineralization is to ground in hydraulic engineering
Reinforcement technique brings new opportunities and challenges, and it is micro- creatively to change ground using Nantural non-toxic abundant evil microbial resources
It sees structure and constitutes, and then Rock And Soil is reinforced.
Therefore, this low pressure, it is non-disturbance, ecological, environmental protective ground Dam Foundation Strengthened in Situ new method obtained many scholars at home and abroad
It is studied, calcium carbonate crystal technology (Microbial Induced Carbonate Precipitation, MICP) is by ground
Engineering combines with Biochemical Engineering, has the advantages such as pollution-free, noresidue and good biocompatibility.So
And correlative study both at home and abroad at present is also obvious insufficient, and up to the present, the uniformity especially in the microorganism consolidation by grouting soil body
On there are obvious problems.Therefore, calcium carbonate crystal technical application is intuitively observed very much in transparent soil and is filled in microorganism
Distribution of the calcite that microorganism induction is formed when starching soil mass consolidation in soil particle hole, while microorganism can be passed through
The distribution situation of microorganism in the soil is observed with the difference of transparent native refractive index.However, up to the present, related saturated sand
There is not been reported for the visual test device of microorganism consolidation by grouting.
In conclusion how on existing Research foundation, a kind of saturated sand microorganism consolidation by grouting is designed and developed
Visual test device is the key technical problem of microorganism geotechnical engineering technical field urgent need to resolve.
Utility model content
In view of the deficiencies of the prior art, the present invention provides a kind of visualizations of saturated sand microorganism consolidation by grouting
Experimental rig.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of visual test device of saturated sand microorganism consolidation by grouting, including transparent test box, grouting water tank, filling
Starch pipe, laser light source transmitter, CCD digital camera and data gathering system；The upper end of the transparent test box is hatch frame,
The top of the transparent test box, and the bottom and the transparent test box top of the grouting water tank is arranged in the grouting water tank
Distance between portion in the vertical direction is 40-80cm, and one end of the grout pipe is connected to the grouting water tank, and the other end is stretched
Enter the upper end opening of the transparent test box, side, institute is arranged outside the transparent test box in the laser light source transmitter
It states CCD digital camera and the data gathering system is respectively positioned on the outside of the transparent test box, and the two is connected, the CCD
The shooting direction of digital camera is located at the normal direction of the laser plane of the laser light source transmitter.
Scheme as a further improvement of the above technical scheme, the visualization examination of the saturated sand microorganism consolidation by grouting
Experiment device further includes lens group, and the lens group is arranged between the transparent test box and the laser light source transmitter, and
On the laser plane of the laser light source transmitter, the lens group is 4- at a distance from the laser light source transmitter
6cm。
Further improvement project as above-mentioned technical proposal, the transparent test box and the laser light source transmitter
Distance be 28-34cm.
Scheme as a further improvement of the above technical scheme, the visualization examination of the saturated sand microorganism consolidation by grouting
Experiment device further includes testing stand, and the testing stand is height-adjustable packaged type testing stand, and the grouting water tank is arranged in institute
It states on testing stand.
Further improvement project as above-mentioned technical proposal, the height adjustable extent of the testing stand are 60-
180cm。
Scheme as a further improvement of the above technical scheme, the visualization examination of the saturated sand microorganism consolidation by grouting
Experiment device further includes the adjusting flow meter being arranged on the grout pipe, and the adjustable extent of the adjusting flow meter is 0.2-
3mL/min。
Further improvement project as above-mentioned technical proposal, the visualization of the saturated sand microorganism consolidation by grouting
Experimental rig further includes the exhaust part being arranged on the grout pipe, the exhaust part be located at the adjusting flow meter with it is described
It is in the milk between water tank, the exhaust part is equipped with exhaust valve.
Scheme as a further improvement of the above technical scheme, the data gathering system are electronic computer.
Scheme as a further improvement of the above technical scheme, the transparent test box are the transparent organic of rectangular parallelepiped structure
Glass test box, long a height of (20-35) cm* (12-18) cm* (12-18) cm of * wide *, with a thickness of 4-6.5mm；The grout pipe
For the lucite tube of internal diameter 1.8-2.5cm, wall thickness 2-4mm.
The advantages of the utility model:
(1) experimental rig provided by the utility model realizes the visual of saturated sand microorganism consolidation by grouting overall process
Change, provides reliable basis for the theoretical research and practical application of microorganism geotechnical engineering；
(2) visual test device of saturated sand microorganism consolidation by grouting provided by the utility model can pass through height
The grouting of microorganism filling process is realized in the cooperation of adjustable testing stand and the adjusting flow meter being arranged on the grout pipe
Rate and grouting quantity it is adjustable, realize multifactor grouting impact analysis to reach, theoretical significance is great；
(3) visual test device of saturated sand microorganism consolidation by grouting provided by the utility model is by by laser
Speckles Technique, digital image acquisition technology are combined with Particle Image Velocimetry, are provided with for microorganism consolidation by grouting theory
Foundation is imitated, and realizes the real-time acquisition and collection of overall process data, simple and reasonable, easy to operate, test efficiency is high,
It has a extensive future.
Detailed description of the invention
Fig. 1 is a kind of Visualization dress of saturated sand microorganism consolidation by grouting provided by the utility model embodiment
The structural schematic diagram set；
In figure:
Transparent test box 1, be in the milk water tank 2, grout pipe 3, laser light source transmitter 4, CCD digital camera 5, data collection system
System 6, lens group 7, testing stand 8, adjusting flow meter 9, exhaust part 10, exhaust valve 101.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not limited to the protection scope of the utility model for illustrating the utility model.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；In this reality
With in novel description, it should be noted that unless otherwise clearly defined and limited, term " connected ", " connection " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or be integrally connected；It can be directly connected,
It can be indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1, a kind of visualization of saturated sand microorganism consolidation by grouting provided by the utility model embodiment
Experimental rig, including transparent test box 1, grouting water tank 2, grout pipe 3, laser light source transmitter 4, CCD digital camera 5 and data
Collection system 6；The upper end of the transparent test box 1 is hatch frame；The grouting water tank 2 is arranged in the transparent test box 1
Top, and the bottom of the grouting water tank 2 between 1 top of transparent test box in the vertical direction at a distance from be 40-
80cm；One end of the grout pipe 3 is connected to the grouting water tank 2, and the upper end that the other end protrudes into the transparent test box 1 is opened
Mouthful, the laser light source transmitter 4 is arranged in the transparent 1 outside side of test box, the CCD digital camera 5 and the number
The outside of the transparent test box 1 is respectively positioned on according to collection system 6, and the two is connected, the shooting direction of the CCD digital camera 5
Positioned at the normal direction of the laser plane of the laser light source transmitter 4.
Specifically, the transparent test box 1 and the grout pipe 3 are all made of clear perspex material and are process, institute
The long a height of 25cm*15cm*15cm of * wide * of transparent test box 1 is stated, with a thickness of 5mm；The internal diameter and wall thickness of the grout pipe 3 are distinguished
2.0cm and 2.5mm.
Specifically, the horizontal distance of the transparent test box 1 and the laser light source transmitter 4 is 30cm or so.
Specifically, the data gathering system 6 is a microcomputer.
In detail, a kind of Visualization of saturated sand microorganism consolidation by grouting provided by the utility model embodiment
The course of work of device is as follows:
1, it is first poured into after white mineral oil and EI solvent naphtha 1:1 mixed configuration in mass ratio in the transparent test box 1,
Again uniformly, through over cleaning and go deimpurity tekite sand that white mineral oil is successively added by funnel as transparent soil using gradation
In EI solvent naphtha mixed liquor, prevents from generating bubble during addition tekite sand, influence transparency, after standing 3-5h,
The extra pore-fluid in surface layer is drawn with rubber head dropper；
2, it when handling transparent soil, passes sequentially through grouting water tank 2 and inputs bacterium solution and nutrient solution, it is transparent after every wheel grouting
Earth sample is inverted 180 ° of progresss next round grouting, and to obtain preferable uniformity, the filling rate of bacterium solution and fixer is 1mL/
The filling rate of min, nutrient solution are 0.33mL/min, so that the urea in nutrient solution is fully hydrolyzed, calcium carbonate is sufficiently generated
And in conjunction with sand particle；
3, before preparing slip casting, laser light source transmitter 4 is opened, opens CCD digital camera 5, so that entire transparent soil
For model in coverage, CCD digital camera is tuned into automatic continuous shooting, in the display screen display of data gathering system 6
The overall process of microorganism consolidation by grouting out, wherein transparent soil is used as skeleton particle, the calcium carbonate generated in microorganism filling process
Due to different with the refractive index of transparent soil, hence it is evident that can intuitively observe the process of microorganism grouting.
A kind of saturated sand microorganism consolidation by grouting provided by another embodiment according to the present utility model can
It further include testing stand 8 and adjusting flow meter 9 depending on changing in experimental rig, the grouting water tank 2 is arranged in the testing stand 8
Lower section, the adjusting flow meter 9 are arranged on the grout pipe 3.
Specifically, the testing stand 8 is height-adjustable packaged type testing stand, and table top size is 80cm*60cm,
Table surface height can be adjusted within the scope of 60-180cm according to actual needs, and in order to test conveniently, the supporting leg of the testing stand 8
Bottom is equipped with universal wheel to be braked.
Specifically, the flow adjustable extent of the adjusting flow meter 9 is 0.2-3mL/min, can be according to actual tests need
It wants, the height of the comprehensive testing stand 8 realizes the controllable adjustment of the filling rate to grouting water tank 2.
In addition, being located at the adjusting flow meter 9 and the filling to reduce the influence that air tests consolidation by grouting
Exhaust part 10 is additionally provided on grout pipe 3 between pulp-water case 2, the exhaust part 10 is one section of exhaust pipe with exhaust valve 101,
When slip casting starts, the air in grout pipe 3 can be excluded by opening exhaust valve 101.
A kind of saturated sand microorganism consolidation by grouting provided by another embodiment according to the present utility model can
Depending on being additionally provided with a lens group 7 between the transparent test box 1 and the laser light source transmitter 4 in change experimental rig,
The lens group 7 is located on the laser plane of the laser light source transmitter 4, so that the laser light source transmitter 4 transmitting
Laser forms more uniform scattering spot through transparent soil by the transparent test box 1, to improve its visualization effect.
Specifically, the lens group 7 is 5cm at a distance from the laser light source transmitter 4.
Experimental rig provided by the utility model embodiment realizes saturated sand microorganism consolidation by grouting overall process
Visualization, provides reliable basis for the theoretical research and practical application of microorganism geotechnical engineering；The saturated sand microorganism fills
The visual test device that slurry is reinforced can pass through height-adjustable testing stand and the adjusting flow being arranged on the grout pipe
The cooperation of meter, realize microorganism filling process filling rate and grouting quantity it is adjustable, realize multifactor grouting to reach
Impact analysis, theoretical significance are great；The visual test device of the saturated sand microorganism consolidation by grouting is by by laser
Speckles Technique, digital image acquisition technology are combined with Particle Image Velocimetry, are provided with for microorganism consolidation by grouting theory
Foundation is imitated, and realizes the real-time acquisition and collection of overall process data, simple and reasonable, easy to operate, test efficiency is high,
It has a extensive future.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Finally, being not intended to limit the protection model of the utility model the above is only the preferred embodiment of the utility model
It encloses.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of utility model.
Claims (9)
1. a kind of visual test device of saturated sand microorganism consolidation by grouting, which is characterized in that including transparent test box
(1), grouting water tank (2), grout pipe (3), laser light source transmitter (4), CCD digital camera (5) and data gathering system (6)；
The upper end of the transparent test box (1) is hatch frame, and the grouting water tank (2) is arranged in the transparent test box (1)
Top, and between the bottom of grouting water tank (2) and the transparent test box (1) top in the vertical direction at a distance from be
40-80cm, one end of the grout pipe (3) are connected to the grouting water tank (2), and the other end protrudes into the transparent test box (1)
Upper end opening, the laser light source transmitter (4) setting is in the external side of the transparent test box (1), the CCD number phase
Machine (5) and the data gathering system (6) are respectively positioned on the outside of the transparent test box (1), and the two is connected, the CCD number
The shooting direction of word camera (5) is located at the normal direction of the laser plane of the laser light source transmitter (4).
2. visual test device according to claim 1, which is characterized in that further include lens group (7), the lens group
(7) it is arranged between the transparent test box (1) and the laser light source transmitter (4), and is located at the laser light source and emits
On the laser plane of device (4), the lens group (7) is 4-6cm at a distance from the laser light source transmitter (4).
3. visual test device according to claim 1 or 2, which is characterized in that the transparent test box (1) with it is described
The distance of laser light source transmitter (4) is 28-34cm.
4. visual test device according to claim 1, which is characterized in that further include testing stand (8), the testing stand
It (8) is height-adjustable packaged type testing stand, the grouting water tank (2) is arranged on the testing stand (8).
5. visual test device according to claim 4, which is characterized in that the adjustable model of height of the testing stand (8)
It encloses for 60-180cm.
6. visual test device according to claim 1, which is characterized in that further include being arranged in the grout pipe (3)
On adjusting flow meter (9), the adjustable extent of the adjusting flow meter (9) is 0.2-3mL/min.
7. visual test device according to claim 6, which is characterized in that further include being arranged in the grout pipe (3)
On exhaust part (10), the exhaust part (10) is between the adjusting flow meter (9) and the grouting water tank (2), institute
Exhaust part (10) are stated equipped with exhaust valve (101).
8. visual test device according to claim 1, which is characterized in that the data gathering system (6) is electronics
Computer.
9. visual test device according to claim 1, which is characterized in that the transparent test box (1) is cuboid
The transparent perspex test box of structure, long a height of (20-35) cm* (12-18) cm* (12-18) cm of * wide *, with a thickness of 4-
6.5mm；The grout pipe (3) is the lucite tube of internal diameter 1.8-2.5cm, wall thickness 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818072.0U CN208270437U (en) | 2018-05-29 | 2018-05-29 | A kind of visual test device of saturated sand microorganism consolidation by grouting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818072.0U CN208270437U (en) | 2018-05-29 | 2018-05-29 | A kind of visual test device of saturated sand microorganism consolidation by grouting |
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| CN208270437U true CN208270437U (en) | 2018-12-21 |
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| CN201820818072.0U Expired - Fee Related CN208270437U (en) | 2018-05-29 | 2018-05-29 | A kind of visual test device of saturated sand microorganism consolidation by grouting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633126A (en) * | 2019-01-24 | 2019-04-16 | 南华大学 | Porous Media reinforces experimental provision and microorganism grouting strengthening method |
| CN109959773A (en) * | 2019-04-01 | 2019-07-02 | 合肥工业大学 | A kind of experimental rig and method demoulding microorganism grouting and reinforcing silt |
| CN110082506A (en) * | 2019-05-20 | 2019-08-02 | 南华大学 | A kind of test reaction unit and test reaction method |
| CN113092730A (en) * | 2021-04-15 | 2021-07-09 | 中国水利水电科学研究院 | Test device for microorganism induced calcium carbonate deposition |
-
2018
- 2018-05-29 CN CN201820818072.0U patent/CN208270437U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633126A (en) * | 2019-01-24 | 2019-04-16 | 南华大学 | Porous Media reinforces experimental provision and microorganism grouting strengthening method |
| CN109959773A (en) * | 2019-04-01 | 2019-07-02 | 合肥工业大学 | A kind of experimental rig and method demoulding microorganism grouting and reinforcing silt |
| CN109959773B (en) * | 2019-04-01 | 2021-07-13 | 合肥工业大学 | Test device and method for reinforcing silt through demoulding microorganism grouting |
| CN110082506A (en) * | 2019-05-20 | 2019-08-02 | 南华大学 | A kind of test reaction unit and test reaction method |
| CN113092730A (en) * | 2021-04-15 | 2021-07-09 | 中国水利水电科学研究院 | Test device for microorganism induced calcium carbonate deposition |
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Granted publication date: 20181221 Termination date: 20190529 |