CN114814168A - Testing device for reinforcing fractured rock test piece through microbial grouting - Google Patents
Testing device for reinforcing fractured rock test piece through microbial grouting Download PDFInfo
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- CN114814168A CN114814168A CN202210446793.4A CN202210446793A CN114814168A CN 114814168 A CN114814168 A CN 114814168A CN 202210446793 A CN202210446793 A CN 202210446793A CN 114814168 A CN114814168 A CN 114814168A
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 239000011435 rock Substances 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 8
- 230000000813 microbial effect Effects 0.000 title abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 103
- 239000002699 waste material Substances 0.000 claims abstract description 56
- 238000002474 experimental method Methods 0.000 claims abstract description 25
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 25
- 241000894006 Bacteria Species 0.000 claims abstract description 15
- 239000011440 grout Substances 0.000 claims abstract description 11
- 244000005700 microbiome Species 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims abstract 6
- 239000002002 slurry Substances 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract 2
- 241000233866 Fungi Species 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a test device for reinforcing a fractured rock test piece by microbial grouting, which comprises a bacteria liquid tank, a cementing liquid tank, a multi-channel peristaltic pump, a split-flow grouting experiment system and a waste liquid collecting tank, wherein the bacteria liquid tank is connected with the cementing liquid tank; the fungus fluid reservoir and the cementation fluid reservoir are connected with the multichannel peristaltic pump through a liquid inlet pipe, the multichannel peristaltic pump is connected with the shunt grouting experiment system through a peristaltic pump liquid outlet pipe, the upper portion of the shunt grouting experiment system is an adjustable grouting top cover, an adjustable grout guide pipe is arranged on the adjustable grouting top cover and connected with a grout distribution plate, the lower portion of the shunt grouting experiment system is a grouting bottom cover, the grouting bottom cover is connected with the adjustable grouting top cover through a vertical rod, and the shunt grouting experiment system is connected with a waste liquid collecting tank through a waste liquid guide pipe. The test device can simultaneously grout four test pieces at one time, and can carry out tests of microorganism grouting reinforcement fractured rock test pieces with different grouting speeds, different test piece sizes and different types of test pieces.
Description
Technical Field
The invention belongs to the field of geotechnical engineering, and particularly relates to a test device for reinforcing a fractured rock test piece through microbial grouting.
Background
Along with the development of underground space engineering construction and tunnel engineering construction, the influence of rock stratums with fully developed rock mass fractures on the stability and safety of engineering structures is more and more emphasized. If the cracks of the rock stratum contain a large amount of water and silt, problems such as water gushing and foundation gushing can be caused in the construction process. Meanwhile, excavation and unloading in underground engineering easily cause the surrounding rock to be damaged to form fractured rock mass, so that the fractured rock mass becomes a water inrush channel. In order to better improve the hydraulic performance of fractured rock mass, improve the overall stability of engineering structure and reduce the occurrence frequency of disaster conditions, numerous scholars at home and abroad propose various repairing modes for rock mass fractures. The commonly used fractured rock mass restoration methods at present comprise chemical grouting, pressure grouting and other methods. The invention discloses a test device for reinforcing a fractured rock test piece through microbial grouting. The testing device can simultaneously grout four test pieces at one time, can carry out tests of reinforcing fractured rock test pieces by microorganism grouting of different grouting speeds, different test piece sizes and different types of test pieces, and achieves the purposes of improving the test effect and reducing the test cost.
Disclosure of Invention
The invention aims to provide a test device for reinforcing a fractured rock test piece by microbial grouting, which comprises the following steps: the device comprises a bacteria liquid tank, a bacteria liquid inlet pipe, a cementing liquid tank, a cementing liquid inlet pipe, a multi-channel peristaltic pump, a peristaltic pump liquid outlet pipe, an adjustable grouting top cover, an adjustable slurry guide pipe, a slurry flow distribution disc, an adjustable slurry guide pipe adjusting nut, a vertical rod, a test piece cavity, a support disc, a grouting bottom cover, a waste liquid tank, a waste liquid guide pipe, a waste liquid collecting tank, a filter sieve, a transparent dial, a waste liquid outlet switch and an operation table; the bacteria liquid tank is connected with the multi-channel peristaltic pump through a bacteria liquid inlet pipe, and the cementing liquid tank is connected with the multi-channel peristaltic pump through a cementing liquid inlet pipe; the multi-channel peristaltic pump is connected with the split-flow grouting experiment system through a peristaltic pump liquid outlet pipe, the upper part of the split-flow grouting experiment system is an adjustable grouting top cover, an adjustable grout guide pipe is arranged on the adjustable grouting top cover and connected with a grout split-flow disc, the lower part of the split-flow grouting experiment system is a grouting bottom cover, and the grouting bottom cover is connected with the adjustable grouting top cover through a vertical rod; the split-flow grouting experiment system is connected with a waste liquid collecting tank through a waste liquid guide pipe.
Furthermore, the adjustable slip casting top in reposition of redundant personnel slip casting experimental system upper portion surface inside welding has four adjustable thick liquid honeycomb duct adjusting nuts, adjustable thick liquid honeycomb duct adjusting nut links to each other with adjustable thick liquid honeycomb duct.
Furthermore, the middle of the adjustable slurry guide pipe is communicated with the periphery of the guide pipe through threads, and the top of the adjustable slurry guide pipe is connected with a liquid outlet pipe of the peristaltic pump; the bottom of the adjustable slurry guide pipe is connected with the slurry distribution disc; the slurry distribution disc is a round object with a plurality of small holes in the interior, a test piece is arranged at the lower part of the slurry distribution disc and is positioned in the test piece cavity, and the test piece is arranged on the support disc; the slurry distribution plate distributes the grouting liquid on the test piece uniformly.
Furthermore, four upright rod adjusting nuts are arranged on the periphery of the upper surface of the adjustable grouting top cover at the upper part of the split flow grouting experiment system; the vertical rods are arranged inside the four vertical rod adjusting nuts; the adjustable grouting top cover is fixed by the vertical rod through four vertical rod adjusting nuts arranged on the periphery of the upper surface of the adjustable grouting top cover and four vertical rod adjusting nuts positioned on the vertical rod, the lower part of the vertical rod is welded on the periphery of the grouting bottom cover, and the vertical rod forms a test piece cavity by connecting the adjustable grouting top cover and the grouting bottom cover; and a test piece is placed in the test piece cavity.
Further, a grouting bottom cover is arranged at the bottom of the split flow grouting experiment system, a supporting plate is arranged at the top of the grouting bottom cover, a leak-shaped waste liquid groove is formed in the middle of the grouting bottom cover, and a flat steel plate is arranged at the bottom of the grouting bottom cover; the waste liquid groove is smoothly connected with the waste liquid guide pipe; the waste liquid guide pipe end is a waste liquid collecting tank.
Furthermore, the top of the waste liquid collecting tank is provided with an opening, and the middle part of the waste liquid collecting tank is provided with a filter screen; a transparent dial is vertically arranged on the outer surface of the filter screen; the bottom of the waste liquid collecting tank is provided with a waste liquid outlet; the waste liquid outlet is provided with a waste liquid outlet switch.
The invention has the beneficial effects that: the device is mainly used for grouting test of fractured rock mass test pieces, can provide grouting bacteria liquid and cementing liquid of a plurality of pipelines at different speeds, ensures that a plurality of rock test pieces can be simultaneously grouted during grouting, can accelerate grouting speed, improve test effect and reduce test cost, and is strong in system test operability and controllability and more accurate and reliable in test result.
Drawings
While the drawings, which will be described in detail below for the purpose of illustrating embodiments of the invention more clearly, are referred to in the description of embodiments or devices, it is to be understood that the drawings in the following description are illustrative of some embodiments of the invention and that other drawings may be devised by those skilled in the art without the exercise of inventive faculty.
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of an adjustable grouting top cover;
FIG. 3 is a schematic view of a slurry diverter tray;
FIG. 4 is a schematic view of a grouting bottom cover;
FIG. 5 is a pallet turn diagram;
FIG. 6 is a schematic view of a waste liquid tank.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
The device comprises a bacteria liquid tank, a bacteria liquid inlet pipe, a cementing liquid tank, a cementing liquid inlet pipe, a multi-channel peristaltic pump, a peristaltic pump liquid outlet pipe, an adjustable grouting top cover, an adjustable slurry guide pipe, a slurry distribution disc, an adjustable slurry guide pipe adjusting nut, a vertical rod, a test piece cavity, a support disc, a grouting bottom cover, a waste liquid tank, a waste liquid guide pipe, a waste liquid collecting tank, a filter sieve, a transparent dial, a waste liquid outlet switch and an operation table; the bacteria liquid tank is connected with the multi-channel peristaltic pump through a bacteria liquid inlet pipe, and the cementing liquid tank is connected with the multi-channel peristaltic pump through a cementing liquid inlet pipe; the multi-channel peristaltic pump is connected with the split-flow grouting experiment system through a peristaltic pump liquid outlet pipe, the upper part of the split-flow grouting experiment system is an adjustable grouting top cover, an adjustable grout guide pipe is arranged on the adjustable grouting top cover and connected with a grout split-flow disc, the lower part of the split-flow grouting experiment system is a grouting bottom cover, and the grouting bottom cover is connected with the adjustable grouting top cover through a vertical rod; the split-flow grouting experiment system is connected with a waste liquid collecting tank through a waste liquid guide pipe.
As shown in the attached figure 2, four adjustable slurry guide pipe adjusting nuts 10 are welded on the inner surface of the upper surface of the adjustable grouting top cover 7 of the split-flow grouting experiment system, and the adjustable slurry guide pipe adjusting nuts 10 are connected with an adjustable slurry guide pipe 8.
As shown in the attached figures 1, 2 and 3, the middle of the adjustable slurry draft tube 8 is communicated with the periphery of the draft tube by threads, and the top of the adjustable slurry draft tube 8 is connected with a liquid outlet pipe 6 of the peristaltic pump; the bottom of the adjustable slurry guide pipe 8 is connected with a slurry distribution plate 9; the slurry distribution plate 9 is a round object with a plurality of small holes inside, a test piece is arranged at the lower part of the slurry distribution plate 9 and is positioned in the test piece cavity 13, and the test piece is arranged on the support plate 14; and the slurry distribution plate 9 is used for uniformly distributing grouting liquid on the test piece.
As shown in the attached drawings 1, 2 and 4, four upright adjusting nuts 11 are arranged on the periphery of the upper surface of the adjustable grouting top cover 7 at the upper part of the split-flow grouting experiment system; the upright rods 12 are arranged inside the four upright rod adjusting nuts 11; the upright 12 fixes the adjustable grouting top cover 7 through four upright adjusting nuts 11 arranged on the periphery of the upper surface of the adjustable grouting top cover 7 and four upright adjusting nuts 11 positioned on the upright 12, the lower part of the upright 12 is welded on the periphery of a grouting bottom cover 15, and the upright 12 forms a test piece cavity 13 by connecting the adjustable grouting top cover 7 and the grouting bottom cover 15; the test piece cavity 13 is internally provided with a test piece to be placed.
As shown in fig. 4, fig. 5 and fig. 6, a grouting bottom cover 15 is arranged at the bottom of the split-flow grouting experiment system, a tray 14 is arranged at the top of the grouting bottom cover 15, a leak-shaped waste liquid tank 16 is arranged in the middle of the grouting bottom cover 15, and a flat steel plate is arranged at the bottom of the grouting bottom cover 15; the waste liquid groove 16 is smoothly connected with a waste liquid guide pipe 17; the waste liquid conduit 17 terminates in a waste liquid collection tank 18.
As shown in the attached figure 1, the top of the waste liquid collecting tank 18 is provided with an opening, and the middle part of the waste liquid collecting tank 18 is provided with a filter screen 19; a transparent dial 20 is vertically arranged on the outer surface of the filter sieve 19; the bottom of the waste liquid collecting tank 18 is provided with a waste liquid outlet 21; the waste liquid outlet 21 is provided with a waste liquid outlet switch 22.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (6)
1. The utility model provides a test device of microorganism slip casting reinforcing crack rock test piece which characterized in that: the device comprises a bacteria liquid tank (1), a bacteria liquid inlet pipe (2), a cementing liquid tank (3), a cementing liquid inlet pipe (4), a multi-channel peristaltic pump (5), a peristaltic pump liquid outlet pipe (6), an adjustable grouting top cover (7), an adjustable slurry guide pipe (8), a slurry distribution disc (9), an adjustable slurry guide pipe adjusting nut (10), a vertical rod adjusting nut (11), a vertical rod (12), a test piece cavity (13), a support disc (14), a grouting bottom cover (15), a waste liquid tank (16), a waste liquid guide pipe (17), a waste liquid collecting tank (18), a filter sieve (19), a transparent dial (20), a waste liquid outlet (21), a waste liquid outlet switch (22) and an operation table (23); the bacteria liquid tank (1) is connected with the multi-channel peristaltic pump (4) through a bacteria liquid inlet pipe (2), and the cementing liquid tank (3) is connected with the multi-channel peristaltic pump (5) through a cementing liquid inlet pipe (4); the multi-channel peristaltic pump (5) is connected with a shunt grouting experiment system through a peristaltic pump liquid outlet pipe (6), the upper part of the shunt grouting experiment system is provided with an adjustable grouting top cover (7), an adjustable grout guide pipe (8) is arranged on the adjustable grouting top cover (7), the adjustable grout guide pipe (8) is connected with a grout distribution plate (9), the lower part of the shunt grouting experiment system is provided with a grouting bottom cover (15), and the grouting bottom cover (15) is connected with the adjustable grouting top cover (7) through a vertical rod (12); the split-flow grouting experiment system is connected with a waste liquid collecting tank (18) through a waste liquid guide pipe (17).
2. The test device for the microorganism grouting reinforcement of the fractured rock test piece according to claim 1, characterized in that: four adjustable slurry guide pipe adjusting nuts (10) are welded on the inner surface of the upper adjustable grouting top cover (7) of the shunt grouting experiment system, and the adjustable slurry guide pipe adjusting nuts (10) are connected with the adjustable slurry guide pipe (8).
3. The test device for the microorganism grouting reinforcement of the fractured rock test piece according to claim 1, characterized in that: the middle of the adjustable slurry guide pipe (8) is communicated with the periphery of the guide pipe to form threads, and the top of the adjustable slurry guide pipe (8) is connected with a liquid outlet pipe (6) of the peristaltic pump; the bottom of the adjustable slurry guide pipe (8) is connected with a slurry distribution plate (9); the slurry distribution plate (9) is a round object with a plurality of small holes arranged inside, a test piece is arranged at the lower part of the slurry distribution plate (9), the test piece is positioned inside the test piece cavity (13), and the test piece is arranged on the support plate (14); and the slurry distribution plate (9) distributes grouting liquid on the test piece uniformly.
4. The test device for the microorganism grouting reinforcement of the fractured rock test piece according to claim 1, characterized in that: four upright adjusting nuts (11) are arranged on the periphery of the upper surface of the adjustable grouting top cover (7) at the upper part of the split-flow grouting experiment system; the upright rods (12) are arranged inside the four upright rod adjusting nuts (11); the adjustable grouting top cover (7) is fixed by the upright rods (12) through four upright rod adjusting nuts (11) arranged on the periphery of the upper surface of the adjustable grouting top cover (7) and four upright rod adjusting nuts (11) positioned on the upright rods (12), the lower parts of the upright rods (12) are welded on the periphery of the grouting bottom cover (15), and the upright rods (12) form a test piece cavity (13) through connecting the adjustable grouting top cover (7) and the grouting bottom cover (15); the test piece cavity (13) is internally provided with a test piece to be placed.
5. The test device for the microorganism grouting reinforcement of the fractured rock test piece according to claim 1, characterized in that: the bottom of the split flow grouting experiment system is a grouting bottom cover (15), the top of the grouting bottom cover (15) is a supporting plate (14), the middle of the grouting bottom cover (15) is a leak-shaped waste liquid groove (16), and the bottom of the grouting bottom cover (15) is a flat steel plate; the waste liquid groove (16) is smoothly connected with a waste liquid guide pipe (17); the tail end of the waste liquid guide pipe (17) is provided with a waste liquid collecting tank (18).
6. The test device for the microorganism grouting reinforcement of the fractured rock test piece according to claim 1, characterized in that: the top of the waste liquid collecting tank (18) is provided with an opening, and the middle part of the waste liquid collecting tank (18) is provided with a filter screen (19); a transparent dial (20) is vertically arranged on the outer surface of the filter screen (19); the bottom of the waste liquid collecting tank (18) is provided with a waste liquid outlet (21); the waste liquid outlet (21) is provided with a waste liquid outlet switch (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446793.4A CN114814168A (en) | 2022-04-26 | 2022-04-26 | Testing device for reinforcing fractured rock test piece through microbial grouting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210446793.4A CN114814168A (en) | 2022-04-26 | 2022-04-26 | Testing device for reinforcing fractured rock test piece through microbial grouting |
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| CN114814168A true CN114814168A (en) | 2022-07-29 |
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| CN202210446793.4A Pending CN114814168A (en) | 2022-04-26 | 2022-04-26 | Testing device for reinforcing fractured rock test piece through microbial grouting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115629182A (en) * | 2022-10-13 | 2023-01-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Microbial grouting reinforcement device considering temperature and confining pressure and use method |
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| CN105181932A (en) * | 2015-09-09 | 2015-12-23 | 中国矿业大学 | Visualized grouting test device and test method of fractured rock mass |
| CN107121371A (en) * | 2017-04-20 | 2017-09-01 | 山东大学 | A kind of simulation laboratory test system and method suitable for layer of sand osmotic grouting |
| CN107782880A (en) * | 2017-10-22 | 2018-03-09 | 山东科技大学 | Grouting in soil mass simulation test device and its test method in a kind of multifunctional room |
| CN108169044A (en) * | 2017-10-31 | 2018-06-15 | 河南省交通规划设计研究院股份有限公司 | Composite recycled material road surface full scale structure antiscour experimental rig and test method |
| CN109270211A (en) * | 2018-11-09 | 2019-01-25 | 中南大学 | A kind of crack rock microorganism slip casting novel test device and test method |
| CN211784975U (en) * | 2020-03-16 | 2020-10-27 | 华北有色工程勘察院有限公司 | Fracture porous grouting simulation test device under flowing water condition |
| CN112816362A (en) * | 2021-01-13 | 2021-05-18 | 大连理工大学 | Variable multifunctional grouting and foundation reinforcing experimental equipment and method |
-
2022
- 2022-04-26 CN CN202210446793.4A patent/CN114814168A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181932A (en) * | 2015-09-09 | 2015-12-23 | 中国矿业大学 | Visualized grouting test device and test method of fractured rock mass |
| CN107121371A (en) * | 2017-04-20 | 2017-09-01 | 山东大学 | A kind of simulation laboratory test system and method suitable for layer of sand osmotic grouting |
| CN107782880A (en) * | 2017-10-22 | 2018-03-09 | 山东科技大学 | Grouting in soil mass simulation test device and its test method in a kind of multifunctional room |
| CN108169044A (en) * | 2017-10-31 | 2018-06-15 | 河南省交通规划设计研究院股份有限公司 | Composite recycled material road surface full scale structure antiscour experimental rig and test method |
| CN109270211A (en) * | 2018-11-09 | 2019-01-25 | 中南大学 | A kind of crack rock microorganism slip casting novel test device and test method |
| CN211784975U (en) * | 2020-03-16 | 2020-10-27 | 华北有色工程勘察院有限公司 | Fracture porous grouting simulation test device under flowing water condition |
| CN112816362A (en) * | 2021-01-13 | 2021-05-18 | 大连理工大学 | Variable multifunctional grouting and foundation reinforcing experimental equipment and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115629182A (en) * | 2022-10-13 | 2023-01-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Microbial grouting reinforcement device considering temperature and confining pressure and use method |
| CN115629182B (en) * | 2022-10-13 | 2023-08-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Microorganism grouting reinforcement device considering temperature and confining pressure and use method |
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