CN209589617U - A kind of experimental rig solidifying the soil body for microorganism - Google Patents
A kind of experimental rig solidifying the soil body for microorganism Download PDFInfo
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- CN209589617U CN209589617U CN201920182840.2U CN201920182840U CN209589617U CN 209589617 U CN209589617 U CN 209589617U CN 201920182840 U CN201920182840 U CN 201920182840U CN 209589617 U CN209589617 U CN 209589617U
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Abstract
The utility model discloses a kind of experimental rigs for solidifying the soil body for microorganism, it includes vacuum pump and freeze drier, the vacuum pump is connected with drying device by vacuum tube, freeze drier is connect by pipeline with drying device, the drying device includes bottom plate, staving, inner cover and outer cover, cylindrical body is fixedly connected in the middle upper part of bottom plate, there is the inner cover of upwardly-openable on the top of staving, it is openable outer cover in the outer upper side of bottom plate, it is connected separately with two hoses in inner cover, the hose other end passes through bottom plate and is connected with infusion device, there is coil pipe above inner cover, the both ends of coil pipe pass through bottom plate and connect respectively with pipeline, through-hole is equipped in the centre of bottom plate, vacuum tube is connected to through-hole.The utility model so that more bacterium solutions and consolidating fluid enter fine grained soil or the lower soil body of infiltration coefficient, and then can make microorganism induction precipitation of calcium carbonate reach better effect in fine grained soil by Vacuum Freezing & Drying Technology.
Description
Technical field
The utility model relates to a kind of experimental rig more particularly to a kind of experimental rig for solidifying the soil body for microorganism,
Belong to microorganism ground technical field.
Background technique
National economy is in the high-speed developing period, and construction land is increasingly in short supply, and traditional soil improvement method is usually to add
Adding chemical grouting material and chemical curing agent to reinforce soil, i.e., by bored grouting, makes soil mass crack, particulate interspaces fill,
Soil body penetration performance is reduced, plays the role of enhancing soil strength, improves ground；Grouting material has one to environment in conventional method
Fixed adverse effect.In recent years, find exist in nature in biology, chemistry, the multi-disciplinary crossing research of rock-soil mechanics
Certain specific microorganisms utilize the urine of surrounding such as Pasteur's bud pole bacterium, Myxococcus xanthus and certain denitrification quasi-microorganisms
The organic matters such as element and calcium ion source, inductive formation calcium carbonate during microorganism itself metabolism or enzymeization act on,
This process is referred to as microorganism induction calcium carbonate mineralising, abbreviation MICP technology.The technology is still at present with laboratory test research
It is main, and it is chiefly used in the cementitious test of sand, sand hole is larger with respect to the soil body, and permeability is preferable, is conducive to microorganism and is in the milk.It reviews
Silt, the fine grained soils such as clay, hole is small, and permeability is poor, and microorganism grouting effect is undesirable.
Summary of the invention
Technical problem to be solved by the utility model is: a kind of experimental rig for solidifying the soil body for microorganism is provided, this
Utility model uses Vacuum Freezing & Drying Technology, and principle is the object containing large quantity of moisture, and first cooling down will be in object
Moisture be frozen into solid-state, then make under conditions of vacuum solid water be sublimed into gaseous state discharge.And solid water is in distillation
Heat is absorbed, therefore to give certain heat, and the original structure of object itself and state will not change, script water
Position is then at hole, then when carrying out bacterium solution injection, and bacterium solution can then fill the original hole of moisture, and not changing, object is original
The above-mentioned problem of effective solution in the case where structure and state.
The technical solution of the utility model are as follows: a kind of experimental rig for solidifying the soil body for microorganism, it includes vacuum pump
And freeze drier, the vacuum pump are connected with drying device by vacuum tube, freeze drier passes through pipeline and drying device
Connection, the drying device includes bottom plate, staving, inner cover and outer cover, is fixedly connected with column barrel in the middle upper part of bottom plate
There is the inner cover of upwardly-openable on the top of body, staving, is openable outer cover in the outer upper side of bottom plate, connects respectively in inner cover
Two hoses are connected to, the hose other end passes through bottom plate and is connected with infusion device, has coil pipe above inner cover, the both ends of coil pipe are worn
It crosses bottom plate to connect with pipeline respectively, is equipped with through-hole in the centre of bottom plate, vacuum tube is connected to through-hole.
The infusion device includes pedestal, telescopic rod and mandril, and telescopic rod is fixedly connected with above pedestal, telescopic rod
Top is fixedly connected with horizontal mandril, symmetrical two bacterium solution bottles and consolidating fluid bottle is hung at the both ends of mandril, in bacterium solution bottle
Pass through bacterium solution valve and consolidating fluid valve respectively with the bottom end of consolidating fluid bottle to be connected to two hoses.
The telescopic rod is internal and external casing structure, and inner tube is located at retractable state in outer tube, there is fixation on outer tube
Bolt is locked.
The vacuum tube is equipped with vacuum valve.
The lower section of the vacuum pump is equipped with liquid storage bottle, and liquid storage bottle is transparent glass material and is equipped with metering scale, vacuum
Pump is extend into liquid storage bottle by delivery pipe.
The outer cover is hollow cylindrical structure, and top is hemisphere planar structure, and glass material, it is close that bottom end passes through rubber
Packing and bottom plate are tightly connected.
The bottom plate is equipped with the temp probe inside detectable outer cover, the control of the temp probe and freeze drier
Device connection.
The side of the inner cover is connected with symmetrical two connecting rods, and the connecting rod passes through plate outer side, in the bottom end of connecting rod
It is fixedly connected with cross bar between portion, rubber seal rings for seal is equipped between connecting rod and bottom plate.
The inside of the staving is placed with the soil sample of test, and rubber gasket is equipped between staving top and inner cover.
The beneficial effects of the utility model are: compared with prior art, using the technical solution of the utility model, this is practical
It is novel microorganism is carried out using Vacuum Freezing & Drying Technology solidify the test of the soil body, can not change the original structure of soil sample with
The microorganism solidification of soil sample is carried out in the case where state.And this experimental method then can keep soil sample original in not disturbed soil
In the case where structure and state, preferably bacterium solution is injected, and then the soil body is solidified, obtains good test effect.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is partial enlarged view of the invention.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below with reference to this specification attached drawing pair
The utility model is described in further detail.
Embodiment 1: as shown in attached drawing 1-2, a kind of experimental rig solidifying the soil body for microorganism, it includes vacuum pump 3
With freeze drier 5, the vacuum pump 3 is connected with drying device by vacuum tube 2, and freeze drier 5 is by pipeline 24 and does
Dry device connection, the drying device includes bottom plate 11, staving 7, inner cover 12 and outer cover 14, is fixed in the middle upper part of bottom plate 11
It is connected with cylindrical body 7, there is the inner cover 12 of upwardly-openable on the top of staving 7, is openable in the outer upper side of bottom plate 11
Outer cover 14, be connected separately with two hoses 18 on inner cover 12,18 other end of hose passes through bottom plate 11 and is connected with infusion device,
There is coil pipe 15 in the top of inner cover 12, the both ends of coil pipe 15 pass through bottom plate 11 and connect respectively with pipeline 24, in the centre of bottom plate 11
Equipped with through-hole 25, vacuum tube 2 is connected to through-hole 25.
Further, infusion device includes pedestal 19, telescopic rod 20 and mandril 21, and the top of pedestal 19, which is fixedly connected with, stretches
Contracting bar 20, the top of telescopic rod 20 are fixedly connected with horizontal mandril 21, hang with symmetrical two bacterium solutions at the both ends of mandril 21
Bottle 16 and consolidating fluid bottle 22, pass through bacterium solution valve 17 and consolidating fluid valve 23 and two in the bottom end of bacterium solution bottle 16 and consolidating fluid bottle 22 respectively
Root hose 18 is connected to.
Further, telescopic rod 20 is internal and external casing structure, and inner tube is located at retractable state in outer tube, on outer tube
There is fixing bolt to be locked.
Further, vacuum tube 2 is equipped with vacuum valve 10.
Further, the lower section of vacuum pump 3 is equipped with liquid storage bottle 1, and liquid storage bottle 1 is transparent glass material and is equipped with metering quarter
Degree, vacuum pump 3 are extend into liquid storage bottle 1 by delivery pipe 4.
Further, outer cover 14 is hollow cylindrical structure, and top is hemisphere planar structure, and glass material, bottom end leads to
It crosses rubber gasket and bottom plate 11 is tightly connected.
Further, bottom plate 11 is equipped with the temp probe 8 inside detectable outer cover 14, the temp probe 8 and freezing
The controller of drying machine 5 connects.
Further, the side of inner cover 12 is connected with symmetrical two connecting rods 6, and the connecting rod 6 passes through 11 outside of bottom plate, In
It is fixedly connected with cross bar 9 between the bottom end of connecting rod 6, rubber seal rings for seal is equipped between connecting rod 6 and bottom plate 11.
Further, the inside of staving 7 is placed with the soil sample 13 of test, and rubber is equipped between 7 top of staving and inner cover 12
Glue gasket.
A kind of test method for the experimental rig solidifying the soil body for microorganism, the method step are as follows:
One, it places soil sample: first carrying out the placement of soil sample 13, be cased with plastic fresh-keeping membrane in staving 7, soil sample 13 is put into bucket
In body 7, connecting rod 6 is pushed up by upper holding inner cover 12 by cross bar 9 and is in an open state, at this moment controls consolidating fluid, bacterium solution feed flow
Bacterium solution valve 17 and consolidating fluid valve 23 are in off state；
Two, it is freeze-dried mechanism cold: outer cover 14 is covered on bottom plate 11, vacuum refrigeration room is closed, and freeze drier 5 is opened
Refrigerating function, can be freezed to vacuum refrigeration room by coil pipe 15, when temperature reaches -40 degrees Celsius close freeze-drying
Machine 5；
Three, vacuum pump vacuumizes: opening vacuum valve 10, opens vacuum pump 3, vacuum refrigeration room is vacuumized, is at this moment connected
The liquid storage bottle 1 of vacuum pump 3 has water inflow, when water stops flow into, the volume markings of liquid in the good liquid storage bottle 1 at this time of note, then
It closes vacuum pump 3 and closes vacuum valve 10；
Four, bacterium solution and consolidating fluid prepare: the bacterium solution prepared being put into bacterium solution bottle 16, the consolidating fluid prepared is put into consolidating fluid bottle
22, then inner cover 12 is pulled down and is covered on staving 7 by pulling down cross bar 9, then opens vacuum valve 10, then carry out vacuum freeze drying
Pressure stabilizing；
Five, it injects bacterium solution and consolidating fluid: opening consolidating fluid valve 23, release the glue of liquid volume half in equivalent liquid storage bottle 1
Consolidating fluid valve 23 is turned off after knot liquid；Bacterium solution valve 17 is opened, releases in equivalent liquid storage bottle 1 and is closed again after the bacterium solution of liquid volume half
Close bacterium solution valve 17；
Six, conserve: by vacuum refrigeration chamber opening, the heat-production functions for being then turned on freeze drier 5 are heated, and pass through coil pipe
15 can heat vacuum refrigeration room, the preference temperature of Chinese temperature display to microbe survival, conserve 5-10 days, make it
Microorganism induction is carried out inside soil sample 13 generates precipitation of calcium carbonate；
Seven, repeat step 1 to step 6 process, open vacuum refrigeration room, take out soil sample 13 can carry out soil sample without
Lateral confinement crush test interpretation of result.
The utility model carries out the test that microorganism solidifies the soil body using Vacuum Freezing & Drying Technology, can not change soil
The microorganism solidification of soil sample is carried out in the case where the original structure of sample and state.And this experimental method then can be in not disturbed soil
Body preferably injects bacterium solution, and then solidify to the soil body in the case where keeping soil sample original structure and state, obtains very
Good test effect.
Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that with
Upper embodiment is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment to the utility model
It is described in detail, those skilled in the art should understand that, the technical solution of the utility model can be repaired
Change or equivalent replacement should all cover without departing from the objective and range of technical solutions of the utility model in the utility model
Scope of the claims in.
Claims (9)
1. a kind of experimental rig for solidifying the soil body for microorganism, it includes vacuum pump (3) and freeze drier (5), feature
Be: the vacuum pump (3) is connected with drying device by vacuum tube (2), and freeze drier (5) passes through pipeline (24) and dry
Device connection, the drying device includes bottom plate (11), staving (7), inner cover (12) and outer cover (14), in the centre of bottom plate (11)
Top is fixedly connected with cylindrical body (7), and there is the inner cover (12) of upwardly-openable on the top of staving (7), in bottom plate (11)
Outer upper side is openable outer cover (14), and two hoses (18), hose (18) other end are connected separately on inner cover (12)
It is connected with infusion device across bottom plate (11), is had above inner cover (12) coil pipe (15), the both ends of coil pipe (15) pass through bottom plate
(11) it is connect respectively with pipeline (24), is equipped with through-hole (25) in the centre of bottom plate (11), vacuum tube (2) is connected to through-hole (25).
2. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the infusion device
Including pedestal (19), telescopic rod (20) and mandril (21), telescopic rod (20), telescopic rod are fixedly connected with above pedestal (19)
(20) top is fixedly connected with horizontal mandril (21), the both ends of mandril (21) hang with symmetrical two bacterium solution bottles (16) and
Consolidating fluid bottle (22) passes through bacterium solution valve (17) and consolidating fluid valve (23) in the bottom end of bacterium solution bottle (16) and consolidating fluid bottle (22) respectively
It is connected to two hoses (18).
3. the experimental rig according to claim 2 for solidifying the soil body for microorganism, it is characterised in that: the telescopic rod
It (20) is internal and external casing structure, inner tube is located at retractable state in outer tube, has fixing bolt to be locked on outer tube.
4. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the vacuum tube
(2) vacuum valve (10) are equipped with.
5. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the vacuum pump
(3) lower section is equipped with liquid storage bottle (1), and liquid storage bottle (1) is transparent glass material and is equipped with metering scale, and vacuum pump (3) passes through
Delivery pipe (4) is extend into liquid storage bottle (1).
6. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the outer cover (14)
For hollow cylindrical structure, top is hemisphere planar structure, and glass material, bottom end passes through rubber gasket and bottom plate (11) is close
Envelope connection.
7. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the bottom plate (11)
It is equipped with detectable outer cover (14) internal temp probe (8), the controller of the temp probe (8) and freeze drier (5)
Connection.
8. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the inner cover (12)
Side be connected with symmetrical two connecting rods (6), the connecting rod (6) passes through on the outside of bottom plate (11), the bottom end of connecting rod (6) it
Between be fixedly connected with cross bar (9), between connecting rod (6) and bottom plate (11) be equipped with rubber seal rings for seal.
9. the experimental rig according to claim 1 for solidifying the soil body for microorganism, it is characterised in that: the staving (7)
Inside be placed with the soil sample (13) of test, rubber gasket is equipped between staving (7) top and inner cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182840.2U CN209589617U (en) | 2019-02-01 | 2019-02-01 | A kind of experimental rig solidifying the soil body for microorganism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920182840.2U CN209589617U (en) | 2019-02-01 | 2019-02-01 | A kind of experimental rig solidifying the soil body for microorganism |
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| CN209589617U true CN209589617U (en) | 2019-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708941A (en) * | 2019-02-01 | 2019-05-03 | 贵州大学 | A kind of experimental rig and its test method solidifying the soil body for microorganism |
| 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 |
| CN113092719A (en) * | 2021-04-01 | 2021-07-09 | 武汉科技大学 | A test device for microorganism solidification soil body |
-
2019
- 2019-02-01 CN CN201920182840.2U patent/CN209589617U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708941A (en) * | 2019-02-01 | 2019-05-03 | 贵州大学 | A kind of experimental rig and its test method solidifying the soil body for microorganism |
| CN113092719A (en) * | 2021-04-01 | 2021-07-09 | 武汉科技大学 | A test device for microorganism solidification soil body |
| 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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