CN109270211A - A kind of crack rock microorganism slip casting novel test device and test method - Google Patents
A kind of crack rock microorganism slip casting novel test device and test method Download PDFInfo
- Publication number
- CN109270211A CN109270211A CN201811331320.XA CN201811331320A CN109270211A CN 109270211 A CN109270211 A CN 109270211A CN 201811331320 A CN201811331320 A CN 201811331320A CN 109270211 A CN109270211 A CN 109270211A
- Authority
- CN
- China
- Prior art keywords
- slip casting
- test
- titration
- deflector hole
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of crack rock microorganism slip casting novel test device and test methods, the experimental rig, including slip casting top cover, slip casting bottom cover, grouting device and waste collecting device, RSM ultrasonic rebound survey meter receiving transducer is provided between slip casting top cover and corresponding fixed device and between slip casting bottom cover and corresponding fixed device, slip casting chamber and upper deflector hole are offered inside slip casting top cover, slip casting top cover sidewall offers inlet, it is offered inside slip casting bottom cover and connects liquid bath and lower deflector hole, slip casting bottom cover side wall offers the liquid outlet for being connected to lower deflector hole and waste collecting device.The test method, the installation of preparation, test specimen including injection slurry, setting rate of titration and number and changing measure test result after different parameters.Using the experimental rig and test method of the application, achievees the purpose that improve test effect, reduced experimentation cost and be suitble to promote progress experimental study.
Description
Technical field
The present invention relates to geotechnical engineering crack grouting technical fields, and in particular to a kind of crack rock microorganism slip casting is novel
Experimental rig and test method.
Background technique
Rock cranny can be usually encountered during underground space engineering construction and Tunnel Engineering are built to reach full growth
Rock stratum, it will certain influence is generated to the safety and stability of engineering structure.Meanwhile if containing a large amount of in the crack of rock stratum
Mud and water, there are risks such as huge water burst, prominent mud in construction and operation, and traditional injecting paste material is since particle is big,
Mobility is weak, and the grouting consolidation effect in most of rock cranny especially microfissure is not obvious, and there is many to dive
In risk, the processing problem of these potential risks makes underground space engineering and Tunnel Engineering turn sufficiently complex system into
Engineering.And microorganism slurries, since the particle of itself is small, good fluidity can be very good to solve the problem above-mentioned.
The research and application of microorganism geo-technology focus mostly on to be subtracted in the reparation of cultural relics, the burn into reduction gutter
Delay the migration of heavy metal and organic pollutant, the piping for preventing embankment and sill may etc., and considers microorganism being used for country rock
It is then last decade just comes into vogue and is increasingly becoming hot spot with foundation stabilization.The research reinforced at present about microorganism has one
A little progress, but the most modification for studying the soil body condition under unfavorable geological condition that is still limited to, while there is also
Reinforcement depth it is limited, the critical problem such as consolidation effect is uneven, the reinforcing carried out for the stability problem of rock stratum
It is relatively fewer to handle carried out research.
Therefore, the tunnel perimeter wall rock grouting material in rock mass fracture growth is developed, and grasps the various raw material ginsengs of slurries
Amount and various environmental condition factors are to size performance affecting laws, for ensuring to solve the potential peace of items in work progress
Full problem is of great significance, and economical, societal benefits are significant.
Microorganism induction precipitation of calcium carbonate (MICP) is a kind of induced biomineralization effect being widely present in nature,
The place such as seawater, solution cavity can occur, and a kind of relatively common mineralising bacterium is Bacillus pasteurii, and this bacterium is non-causes a disease
Property bacterium, aerobic bacteria, the principle of MICP is that urase is secreted in Bacillus pasteurii growth course, urase can hydrolyze urea generate carbonic acid
Radical ion adds soluble calcium salt, forms the precipitation of calcium carbonate with cementation under compound action, can use generation
Precipitating carries out crack rock filling and Drain Resistance, and MICP technology has slurry viscosity small, low and good ecological effect of grouting pressure etc.
Plurality of advantages, application prospect are boundless.
The experimental rig for the Seepage of Rock Masses test having been disclosed at present and the method for making sample of rock mass sample, there are samples
The disadvantage that size is smaller and apparatus structure is complicated.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of crack rock microorganism slip casting novel test device, this
The second purpose of invention is to provide a kind of test method using the experimental rig, experimental rig and examination by using the application
Proved recipe method achievees the purpose that improve test effect, reduces experimentation cost and be suitble to promote progress experimental study.
The present invention is solved the above problems by following technological means:
A kind of crack rock microorganism slip casting novel test device, including slip casting top cover, slip casting bottom cover, grouting device and useless
Liquor collecting device, the slip casting top cover and slip casting bottom cover, which pass through corresponding fixed device, to be fixed, slip casting top cover with it is corresponding
It is provided between fixed device and between slip casting bottom cover and corresponding fixed device and is electrically connected with RSM ultrasonic rebound survey meter
RSM ultrasonic rebound survey meter receiving transducer, offer slip casting chamber inside slip casting top cover and be connected to slip casting chamber and along note
Slurry top cover axially extends to the upper deflector hole of slip casting top cover bottom surface, and slip casting top cover sidewall offers connection slip casting chamber and grouting device
Inlet, offer inside slip casting bottom cover connect liquid bath and with the lower deflector hole that connects liquid bath and be connected to, slip casting bottom cover side wall opens up
There is the liquid outlet for being connected to lower deflector hole and waste collecting device.
Further, the grouting device includes bacterium solution tank, cementing flow container and peristaltic pump, and the bacterium solution tank and cementing flow container are equal
By the inlet communication of input duct and peristaltic pump, the outlet of the peristaltic pump is connected to by grouting pipe with inlet.
Further, upper deflector hole there are three equidistantly being opened up in the slip casting top cover, intermediate upper deflector hole and test specimen
The centering distance of crack alignment, the upper deflector hole of the left and right sides is 1.2-1.5cm.
Further, the waste collecting device includes exhausted bath box and drainage duct, and exhausted bath box passes through drainage duct and liquid out
Mouth connection.
Further, the liquid bath that connects is funnel-shaped, and the lower deflector hole is in tilted layout, and connects liquid bath and smoothly connects with lower deflector hole
It connects.
Further, the open top diameter of the splicing groove is 3.5-4cm, depth 0.8-1cm.
Further, it is 3cm that the diameter of the slip casting top cover and slip casting bottom cover, which is 5cm, height,；The grouting pipe, into
Liquid mouth, upper deflector hole, lower deflector hole, liquid outlet and drainage duct internal diameter be 0.5cm.
A kind of test method using experimental rig described above, includes the following steps:
1) strain in bacterium solution selects Bacillus pasteurii, and consolidating fluid is that calcium sulfate and urea are dissolved in the water to obtain, and presses
Calcium sulfate maximum production is obtained to match bacterium solution and consolidating fluid；
2) test specimen is assemblied between slip casting top cover and slip casting bottom cover, so that the crack pair of intermediate upper deflector hole and test specimen
Together, while the crack of test specimen is aligned with liquid bath is connect；
3) setting rate of titration and titration number；
4) wriggling pump startup slip casting, during slip casting, the various test variables of change test process, including temperature,
Stress condition, gap be wide, urea concentration, calcium ion concentration, differential water pressures, roughness condition, obtains each of Grouting Seepage in Rockmass effect
The size of kind influence factor.
Further, the detailed process of rate of titration is set are as follows: by the burette test of multiple different rates of titration, select energy
Make the rate of titration of calcium sulfate maximum production as the rate of titration of setting.
Further, the detailed process of setting titration number are as follows: by the burette test of repeatedly different titration numbers, select energy
Make titration number of the titration number of calcium sulfate maximum production as setting.
Beneficial effects of the present invention: (1) experimental rig structure is simple, easy to make, and rationally, test effect is good for design；
(2) influence for considering different cracks condition in practical rock cranny makes crack rock sample more can using numerical value scan process
The effectively practical grouting and reinforcing rock mass situation of simulation, helps to push crack rock microorganism grouting and reinforcing to practical application；(3) by
The injecting paste material action effective that microorganisms are prepared is long, and durability is high, while consolidation effect is good, while MICP technology
It is small with slurry viscosity, it is many advantages, such as grouting pressure is low and good ecological effect, green and pollution-free.(4) it is titrating
Cheng Hou has titrated front and back using the filling situation of RSM ultrasonic rebound survey meter measurement sample every time, real-time monitoring determines rigid
Velocity of wave when titration is aqueous after completing, it is then dry to survey velocity of wave again later completely, be conducive to the accuracy for improving result.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of slip casting top cover；
Fig. 3 is the structural schematic diagram of slip casting bottom cover.
Specific embodiment
Below with reference to attached drawing, the present invention is described in detail.
As shown in Figs. 1-3: the present invention provides a kind of crack rock microorganism slip casting novel test devices, including slip casting top
Lid 1, slip casting bottom cover 2, grouting device and waste collecting device, the slip casting top cover and slip casting bottom cover pass through corresponding fixed dress
It sets 3 to fix, be respectively provided between slip casting top cover and corresponding fixed device and between slip casting bottom cover and corresponding fixed device
There is the RSM ultrasonic rebound survey meter receiving transducer 4 being electrically connected with RSM ultrasonic rebound survey meter, after the completion of titration, using RSM
Ultrasonic rebound survey meter measures the filling situation of sample, i.e., has titrated front and back, real-time monitoring, after determining that just titration is completed every time
Velocity of wave when aqueous, it is then dry to survey velocity of wave again later completely, be conducive to the accuracy for improving result, opened up inside slip casting top cover
There is slip casting chamber 5 and be connected to slip casting chamber and upper deflector hole 6 that slip casting top cover bottom surface is axially extended to along slip casting top cover, this reality
It applies in example, is equidistantly opened up in slip casting top cover there are three upper deflector hole, intermediate upper deflector hole is aligned with the crack of test specimen, left and right
The centering distance of the upper deflector hole of two sides is 1.2-1.5cm, is conducive to improve titration effect, keeps slip casting process more uniform and steady
It is fixed；Slip casting top cover sidewall offers the inlet 7 being connected to slip casting chamber, offered inside slip casting bottom cover connect liquid bath 8 and with connect
The lower deflector hole 9 of liquid bath connection, described to connect that liquid bath is funnel-shaped, the open top diameter of splicing groove is 3.5-4cm, and depth is
0.8-1cm connects liquid bath and plays the role of collecting waste liquid；The lower deflector hole is in tilted layout, and connects liquid bath and smoothly connects with lower deflector hole
It connects, convenient for being smoothly discharged for waste liquid, meanwhile, and can play the role of simulating gully；Slip casting bottom cover side wall is offered leads under
The liquid outlet 10 of discharge orifice connection.The grouting device includes bacterium solution tank 11, cementing flow container 12 and peristaltic pump 13, the bacterium solution tank and
Cementing flow container passes through the inlet communication of input duct 14 Yu peristaltic pump, the outlet of the peristaltic pump by grouting pipe 15 with into
Liquid mouth is connected to, and the strain in bacterium solution tank is Bacillus pasteurii, and the consolidating fluid calcium sulfate and urea in cementing tank are dissolved in the water
It obtains.The waste collecting device includes exhausted bath box 16 and drainage duct 17, and exhausted bath box is connected to by drainage duct with liquid outlet.
It is 3cm that the diameter of the slip casting top cover and slip casting bottom cover, which is 5cm, height,；The grouting pipe, inlet, upper deflector hole, under
The internal diameter of deflector hole, liquid outlet and drainage duct is 0.5cm, convenient for the speed of control titration.
A kind of test method using above-mentioned experimental provision, includes the following steps:
1) injection slurry is prepared: the strain in bacterium solution selects Bacillus pasteurii, and consolidating fluid is that calcium sulfate and urea are dissolved in
It obtains in water, bacterium solution and consolidating fluid is matched by calcium sulfate maximum production is obtained；
2) test specimen is installed: test specimen being assemblied between slip casting top cover and slip casting bottom cover, so that intermediate upper deflector hole and examination
The crack of part is aligned, while the crack of test specimen is aligned with liquid bath is connect；
3) setting rate of titration and titration number；Set the detailed process of rate of titration are as follows: pass through repeatedly different titration speed
The burette test of degree selects the rate of titration that the rate of titration of calcium sulfate maximum production can be made as setting.Setting titration time
Several detailed process are as follows: by the burette test of repeatedly different titration numbers, selection can make the titration of calcium sulfate maximum production
Titration number of the number as setting.
4) wriggling pump startup slip casting, during slip casting, the various test variables of change test process, including temperature,
Stress condition, gap be wide, urea concentration, calcium ion concentration, differential water pressures, roughness condition, obtains each of Grouting Seepage in Rockmass effect
The size of kind influence factor.
By analysis above structure feature and method it is found that the application has the advantages that the letter of (1) experimental rig structure
Single, easy to make, rationally, test effect is good for design；(2) influence of different cracks condition in practical rock cranny is considered,
Using numerical value scan process, so that crack rock sample more can be effectively simulated practical grouting and reinforcing rock mass situation, facilitate crack
Rock mass microorganism grouting and reinforcing pushes practical application to；(3) the injecting paste material action effective being prepared by microorganisms is long,
Durability is high, while consolidation effect is good, while MICP technology has slurry viscosity small, low and good ecological effect of grouting pressure etc.
Plurality of advantages, it is green and pollution-free.(4) after the completion of titration, using the filling feelings of RSM ultrasonic rebound survey meter measurement sample
Condition has titrated front and back every time, real-time monitoring determines velocity of wave when just titration is aqueous after completing, then after drying completely
Velocity of wave is surveyed again, is conducive to the accuracy for improving result.
In addition, using laser scanner to consider the influence in practical rock stratum under the conditions of different cracks for slip casting effect
(precision 0.01mm, present scan spacing 0.06mm) scans fracture surface, is handled the data point of scanning by software,
Fracture surface figure and absolute mean roughness are formed, so that the crack condition in rock mass is closer to engineering reality, test knot
Fruit has better application value.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
1. a kind of crack rock microorganism slip casting novel test device, it is characterised in that: including slip casting top cover, slip casting bottom cover, note
Sizing device and waste collecting device, the slip casting top cover and slip casting bottom cover, which pass through corresponding fixed device, to be fixed, on slip casting top
It is provided between lid and corresponding fixed device and between slip casting bottom cover and corresponding fixed device and is visited with RSM ultrasonic rebound
The RSM ultrasonic rebound survey meter receiving transducer of instrument electrical connection is surveyed, slip casting chamber is offered inside slip casting top cover and is connected with slip casting chamber
Upper deflector hole logical and that slip casting top cover bottom surface is axially extended to along slip casting top cover, slip casting top cover sidewall offer connection slip casting chamber
With the inlet of grouting device, offer inside slip casting bottom cover connect liquid bath and with the lower deflector hole that connects liquid bath and be connected to, slip casting bottom
Lid side wall offers the liquid outlet for being connected to lower deflector hole and waste collecting device.
2. crack rock microorganism slip casting novel test device according to claim 1, it is characterised in that: the slip casting dress
Set including bacterium solution tank, cementing flow container and peristaltic pump, the bacterium solution tank and cementing flow container pass through input duct and peristaltic pump into
The outlet of mouth connection, the peristaltic pump is connected to by grouting pipe with inlet.
3. crack rock microorganism slip casting novel test device according to claim 2, it is characterised in that: the slip casting top
It equidistantly opens up in lid there are three upper deflector hole, intermediate upper deflector hole is aligned with the crack of test specimen, the upper water conservancy diversion of the left and right sides
The centering distance in hole is 1.2-1.5cm.
4. crack rock microorganism slip casting novel test device according to claim 3, it is characterised in that: the waste liquid is received
Acquisition means include exhausted bath box and drainage duct, and exhausted bath box is connected to by drainage duct with liquid outlet.
5. crack rock microorganism slip casting novel test device according to claim 4, it is characterised in that: described to connect liquid bath
Funnel-shaped, the lower deflector hole is in tilted layout, and connects liquid bath and is smoothly connected with lower deflector hole.
6. crack rock microorganism slip casting novel test device according to claim 5, it is characterised in that: the splicing groove
Open top diameter be 3.5-4cm, depth 0.8-1cm.
7. according to crack rock microorganism slip casting novel test device described in claim 4-6 any one, it is characterised in that:
It is 3cm that the diameter of the slip casting top cover and slip casting bottom cover, which is 5cm, height,；The grouting pipe, inlet, upper deflector hole, under
The internal diameter of deflector hole, liquid outlet and drainage duct is 0.5cm.
8. a kind of test method using experimental rig as claimed in claim 7, which comprises the steps of:
1) strain in bacterium solution selects Bacillus pasteurii, and consolidating fluid is that calcium sulfate and urea are dissolved in the water, and presses
Calcium sulfate maximum production is obtained to match bacterium solution and consolidating fluid；
2) test specimen is assemblied between slip casting top cover and slip casting bottom cover, so that intermediate upper deflector hole is aligned with the crack of test specimen,
Simultaneously the crack of test specimen is aligned with liquid bath is connect；
3) setting rate of titration and titration number；
4) wriggling pump startup slip casting changes the various test variables of test process, including temperature, stress during slip casting
Condition, gap be wide, urea concentration, calcium ion concentration, differential water pressures, roughness condition, obtains the various shadows of Grouting Seepage in Rockmass effect
The size of the factor of sound.
9. test method according to claim 8, which is characterized in that set the detailed process of rate of titration are as follows: by more
The burette test of secondary difference rate of titration selects the titration speed that can make the rate of titration of calcium sulfate maximum production as setting
Degree.
10. test method according to claim 8, it is characterised in that: the detailed process of setting titration number are as follows: by more
The burette test of secondary different titration numbers, selects the titration number that can make calcium sulfate maximum production as the titration time of setting
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331320.XA CN109270211A (en) | 2018-11-09 | 2018-11-09 | A kind of crack rock microorganism slip casting novel test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331320.XA CN109270211A (en) | 2018-11-09 | 2018-11-09 | A kind of crack rock microorganism slip casting novel test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109270211A true CN109270211A (en) | 2019-01-25 |
Family
ID=65193341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811331320.XA Pending CN109270211A (en) | 2018-11-09 | 2018-11-09 | A kind of crack rock microorganism slip casting novel test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109270211A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827823A (en) * | 2019-03-18 | 2019-05-31 | 四川农业大学 | A kind of experimental rig and application method that fluid cemented rock joint plane stage by stage can be used |
| CN110438975A (en) * | 2019-07-23 | 2019-11-12 | 河海大学 | A kind of microorganism grouting device and construction method for reinforcing deep soft clay |
| CN111157704A (en) * | 2020-01-20 | 2020-05-15 | 中国地质大学（武汉） | Vertical structural surface grouting test device and test method |
| CN111912684A (en) * | 2020-08-10 | 2020-11-10 | 中国矿业大学 | Preparation system of mine microbial mineralization filling material |
| CN112858019A (en) * | 2021-01-08 | 2021-05-28 | 合肥工业大学 | Test device and test method for repairing air pressure fracture by MICP technology |
| CN114814168A (en) * | 2022-04-26 | 2022-07-29 | 昆明理工大学 | Testing device for reinforcing fractured rock test piece through microbial grouting |
| CN115979923A (en) * | 2023-03-20 | 2023-04-18 | 中国有色金属工业昆明勘察设计研究院有限公司 | Tailing pond permeation destruction simulation test device and test method |
| CN117148331A (en) * | 2023-10-31 | 2023-12-01 | 中海油田服务股份有限公司 | Test system and test method of while-drilling ultrasonic imaging instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4139703B2 (en) * | 2003-02-14 | 2008-08-27 | スミコンセルテック株式会社 | Soil packed column test apparatus and test method using the same |
| CN106353480A (en) * | 2016-08-10 | 2017-01-25 | 天津大学 | Method for testing microbe cemented fine-grained soil under negative pressure |
| CN107607375A (en) * | 2017-08-29 | 2018-01-19 | 华能澜沧江水电股份有限公司 | A kind of rock（Body）Direct shear test destroys test micro reinforcement means |
| CN107677527A (en) * | 2017-08-29 | 2018-02-09 | 华能澜沧江水电股份有限公司 | A kind of rock triaxial test destroys test micro reinforcement means |
-
2018
- 2018-11-09 CN CN201811331320.XA patent/CN109270211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4139703B2 (en) * | 2003-02-14 | 2008-08-27 | スミコンセルテック株式会社 | Soil packed column test apparatus and test method using the same |
| CN106353480A (en) * | 2016-08-10 | 2017-01-25 | 天津大学 | Method for testing microbe cemented fine-grained soil under negative pressure |
| CN107607375A (en) * | 2017-08-29 | 2018-01-19 | 华能澜沧江水电股份有限公司 | A kind of rock（Body）Direct shear test destroys test micro reinforcement means |
| CN107677527A (en) * | 2017-08-29 | 2018-02-09 | 华能澜沧江水电股份有限公司 | A kind of rock triaxial test destroys test micro reinforcement means |
Non-Patent Citations (2)
| Title |
|---|
| 蒋元駉等 主编: "《混凝土工程病害与修补加固》", 31 July 1996, 海洋出版社 * |
| 贺小青: "微生物固化吹填细砂的基础性试验研究", 《中国优秀所示学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827823A (en) * | 2019-03-18 | 2019-05-31 | 四川农业大学 | A kind of experimental rig and application method that fluid cemented rock joint plane stage by stage can be used |
| CN109827823B (en) * | 2019-03-18 | 2023-10-31 | 四川农业大学 | Test device capable of adopting fluid to stage cementing rock joint surface and use method |
| CN110438975A (en) * | 2019-07-23 | 2019-11-12 | 河海大学 | A kind of microorganism grouting device and construction method for reinforcing deep soft clay |
| CN111157704A (en) * | 2020-01-20 | 2020-05-15 | 中国地质大学（武汉） | Vertical structural surface grouting test device and test method |
| CN111157704B (en) * | 2020-01-20 | 2023-12-29 | 中国地质大学（武汉） | Test method of grouting test device for vertical structural surface |
| CN111912684A (en) * | 2020-08-10 | 2020-11-10 | 中国矿业大学 | Preparation system of mine microbial mineralization filling material |
| CN112858019A (en) * | 2021-01-08 | 2021-05-28 | 合肥工业大学 | Test device and test method for repairing air pressure fracture by MICP technology |
| CN112858019B (en) * | 2021-01-08 | 2022-12-20 | 合肥工业大学 | Test device and test method for repairing air pressure fracture by MICP technology |
| CN114814168A (en) * | 2022-04-26 | 2022-07-29 | 昆明理工大学 | Testing device for reinforcing fractured rock test piece through microbial grouting |
| CN115979923A (en) * | 2023-03-20 | 2023-04-18 | 中国有色金属工业昆明勘察设计研究院有限公司 | Tailing pond permeation destruction simulation test device and test method |
| CN117148331A (en) * | 2023-10-31 | 2023-12-01 | 中海油田服务股份有限公司 | Test system and test method of while-drilling ultrasonic imaging instrument |
| CN117148331B (en) * | 2023-10-31 | 2023-12-26 | 中海油田服务股份有限公司 | Test system and test method of while-drilling ultrasonic imaging instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109270211A (en) | A kind of crack rock microorganism slip casting novel test device and test method | |
| Wang et al. | Surficial soil stabilization against water-induced erosion using polymer-modified microbially induced carbonate precipitation | |
| CN107064472B (en) | A kind of experimental rig and test method of microorganism grouting and reinforcing cylinder sand sample | |
| CN106568698A (en) | Method for repairing concrete cracks by using microorganisms and conducting permeability test | |
| CN208270437U (en) | A kind of visual test device of saturated sand microorganism consolidation by grouting | |
| CN106198932A (en) | The experimental provision of water petrofacies interaction and method in a kind of simulation rock crack | |
| Montoya et al. | Distribution and properties of microbially induced carbonate precipitation in underwater sand bed | |
| CN103755195A (en) | Method for preparing high strength microorganism mortar by microorganism generating urease and calcium acetate | |
| CN207004500U (en) | A kind of shale gas reservoir staged fracturing horizontal well seepage experimental device | |
| CN115032365A (en) | Soil body reinforcement research method based on improved EICP technology and application | |
| CN100510746C (en) | Early capillary negative pressure automatic detector for concrete | |
| Li et al. | Quantitative evaluation of impact cracks near the borehole based on 2D image analysis and fractal theory | |
| CN107340333A (en) | Three-dimensional large power supersonic control bubbles silt consolidation pilot system and its method | |
| CN111060618A (en) | In-situ measuring method and device for denitrification rate of nitrate in aquifer | |
| CN104947723A (en) | Presplitting grouting method for pile bottom of rock-socketed grouting pile | |
| CN207882116U (en) | A kind of rock permeability instrument pressure head equipped with point water plate | |
| CN103409620A (en) | Method for measuring leaching parameters of dump leaching mineral pile at different depths | |
| CN212207027U (en) | Device for transforming hydrothermal geothermal reservoir through experimental simulation of carbon dioxide | |
| CN207156133U (en) | A kind of concrete production system | |
| CN211784849U (en) | Hydraulic fracturing simulation test device | |
| Astuto et al. | Bio-Induced Partial Saturation as a Liquefaction Mitigation Technique | |
| CN113089735A (en) | Nondestructive testing method for pile diameter of vibroflotation gravel pile | |
| CN113089734A (en) | Nondestructive testing method for pile length of vibroflotation gravel pile | |
| CN207457017U (en) | A kind of experimental rig for being used to test porous engineering material porosity distribution | |
| CN206960409U (en) | A kind of three-dimensional large power supersonic control bubbles silt consolidation testing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |