CN106285723A - Microorganism grouting device and method after a kind of shield tunnel liner wall - Google Patents
Microorganism grouting device and method after a kind of shield tunnel liner wall Download PDFInfo
- Publication number
- CN106285723A CN106285723A CN201610791405.0A CN201610791405A CN106285723A CN 106285723 A CN106285723 A CN 106285723A CN 201610791405 A CN201610791405 A CN 201610791405A CN 106285723 A CN106285723 A CN 106285723A
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- Prior art keywords
- holding vessel
- grouting
- microorganism
- mixed liquor
- fixing point
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- 244000005700 microbiome Species 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 41
- 239000012531 culture fluid Substances 0.000 claims abstract description 36
- 238000007569 slipcasting Methods 0.000 claims abstract description 25
- 241000894006 Bacteria Species 0.000 claims abstract description 14
- 239000002068 microbial inoculum Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 230000001580 bacterial effect Effects 0.000 claims description 9
- 230000000813 microbial effect Effects 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 241001473780 Sideroxylon lanuginosum Species 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of microorganism grouting device and method after shield tunnel liner wall, device includes microorganism holding vessel, culture fluid holding vessel, mixed liquor holding vessel and rotatable casting head, described microorganism holding vessel is equipped with the dry bacterium of denitrifying bacteria and enrichment medium, equipped with culture fluid in described culture fluid holding vessel；Microorganism holding vessel and culture fluid holding vessel are connected with mixed liquor holding vessel by pipeline respectively, described microorganism holding vessel and the connecting line of mixed liquor holding vessel, and culture fluid holding vessel is provided with control valve and grouting pump on the connecting line of mixed liquor holding vessel, grouting pump connects Pressure gauge；The outlet of described mixed liquor holding vessel is connected with rotatable casting head by Grouting Pipe, and Grouting Pipe is provided with control valve and grouting pump, and grouting pump connects Pressure gauge.Apparatus of the present invention achieve the microorganism slip casting after shield tunnel liner wall, actively improve corrosion-resistant, the erosion performance in tunnel.
Description
Technical field
The present invention relates to a kind of improve that shield tunnel is corrosion-resistant, erosion performance for tunnel-liner grouting behind shaft or drift lining layer and
Soil layer interface injects microbial bacterial, the injection device of culture fluid mixed liquor.
Background technology
Measure and research for improving shield tunnel construction durability at present focuses primarily upon raising armored concrete material
The passive raising of the durability of material, i.e. durability.Tunnel structure xoncrete structure is intact, stagnant water effect ideally, resistance to
The passive raising of property can realize the operation security of tunnel structure with durable for a long time.But reinforced concrete structure holds in prefabrication process
Being easily generated microcrack, and produce the defect such as crack, rhegma during transport, assembly, the disease such as waterstop inefficacy is also tunnel
Road structure is frequently run onto in operation, and the durability of shield tunnel will be impacted by this.
Microorganism grouting method after lining wall can realize tunnel structure active corrosion-resistant, erosion performance and promote.But
It is applied at present including the grouting device of shield tunnel slip casting do not accounts for for the characteristic of microbial bacterial and culture fluid, mainly
Serosity is made to fill in tunnel duct piece with formation void by grouting pressure, and slip casting direction underaction, therefore thin for microorganism
The injection of bacterium bacterium solution can not be suitable for.
Summary of the invention
It is an object of the invention to provide a kind of microorganism grouting device and method after shield tunnel liner wall, existing to solve
Shield tunnel liner grouting behind shaft or drift lining device for the deficiency of the microorganism slip casting suitability,
For achieving the above object, the technical solution used in the present invention is:
Microorganism grouting device after a kind of shield tunnel liner wall, including microorganism holding vessel, culture fluid holding vessel, mixing
Liquid holding vessel and rotatable casting head, described microorganism holding vessel is equipped with the dry bacterium of denitrifying bacteria and enrichment medium, described training
Equipped with culture fluid in nutrient solution holding vessel；Microorganism holding vessel and culture fluid holding vessel are respectively by pipeline with mixed liquor holding vessel even
Connect, the connecting line of described microorganism holding vessel and mixed liquor holding vessel, and the company of culture fluid holding vessel and mixed liquor storage tank
Adapter is provided with control valve and grouting pump on road, and grouting pump connects Pressure gauge；The outlet of described mixed liquor storage tank is passed through
Grouting Pipe is connected with rotatable casting head, and Grouting Pipe is provided with control valve and grouting pump, and grouting pump connects Pressure gauge.
Further, described rotatable casting head includes that casting head, described casting head are a rectangular tube, passes through bottom it
Flexible steel in flat section tubing is connected with casting head；The center of relative two side of described casting head arranges first and fixes axle, should
Being respectively arranged with two rotating shafts, respectively upper end rotating shaft and lower end rotating shaft on two diagonal angles of two sides, described first fixes
Axle by fixing connecting rod be arranged in Grouting Pipe and fix with first the second of axle homonymy and fix axle and be connected, the rotating shaft of described upper end
Upper connection has the first control connecting rod, is positioned in the Grouting Pipe of the first control connecting rod side and is provided with upper and lower two fixing points, respectively
Being the first fixing point and the second fixing point, the rotating shaft of described lower end connects the second control connecting rod, is positioned at the second control connecting rod one
Upper and lower two fixing points, the respectively the 3rd fixing point and the 4th fixing point it is provided with in the Grouting Pipe of side.
Further, the material of described flexible steel in flat section tubing is gum elastic.
Further, the cross section of described casting head is square, and its catercorner length is less than injected hole diameter.
Further, the distance between described first fixing point and the second fixing point, the 3rd fixing point and the 4th fixing point
Between distance identical, all identical with the height of casting head.
Further, the height of described first fixing point and the 4th fixing point is identical.
A kind of utilize the grouting method of microorganism grouting device after above-mentioned shield tunnel liner wall, comprise the following steps:
(1) once grouting performs according to conventional shield tunnel liner grouting behind shaft or drift lining method；
(2) when the secondary grouting of constructing tunnel, first this grouting layer is holed, to grouting layer soil layer behind, after being centrifuged
The dry bacterium of denitrification bacterioid and enrichment medium load microbial inoculum holding vessel, culture fluid loads culture fluid holding vessel, logical
Overregulate the control valve on microorganism holding vessel and culture fluid holding vessel export pipeline and grouting pump, control joining of mixing liquid
Ratio, and it is passed through mixed liquor holding vessel；
(3) realize slip casting by rotatable casting head, inject microbial bacterial mixed liquor and include 3 directions altogether: tunnel serves as a contrast
Build outer normal direction, both sides before and after tunnel axis direction；
(4), after microbial bacterial mixed liquor injects, grouting device is taken out, then carries out the closure of injected hole.
Further, in step (2), microbial inoculum holding vessel is temperature when mixed liquor holding vessel injects microbial inoculum
Between 0 DEG C～10 DEG C, culture fluid holding vessel to mixed liquor holding vessel inject culture fluid time temperature between 10 DEG C～25 DEG C.
Further, in step (3), during slip casting, the injection pressure of mixed liquor is maintained at no more than 2MPa.
Further, in step (3), control connecting rod position between the first fixing point and the second fixing point by first
Put, and second controls connecting rod position between the 3rd fixing point and the 4th fixing point, regulates slip casting direction.
Beneficial effect: apparatus of the present invention achieve the microorganism slip casting after shield tunnel liner wall, actively improve tunnel
Corrosion-resistant, erosion performance, this device, compared with existing grouting device, has the advantage that
(1) direction of casting head can be controlled by controlling connecting rod, it is achieved vertical with along tunnel along tunnel-liner normal direction
To and the multi-direction slip casting such as tunnel-liner is tangential, it is achieved the uniformity of slip casting.
(2) can be by the control of microbial inoculum, culture-liquid temp being reached the slip casting effect of optimum.
(3) can be by the control realization of rear end grouting pressure to microbial inoculum and the adjustment of culture fluid proportioning.
(4) front end grouting pressure can be controlled and maintain smaller value, to ensure that injecting mixed liquor will not too fast run off so that it is
Can fully mix with soil layer, antibacterial and culture fluid can be uniformly distributed in the soil layer adjacent with tunnel-liner grouting behind shaft or drift lining layer.
(5) for injecting microbial bacterial, the grouting device of culture fluid mixed liquor may be simultaneously used for other serosity
Inject, for filling the fullest region and the closure of injected hole of once grouting, it is achieved the multipurpose of device and more preferably using.
Accompanying drawing explanation
Fig. 1 is the structural representation of assembly of the invention；
Fig. 2 is the schematic diagram of an angle of rotatable casting head；
Fig. 3 is the schematic diagram of another angle of rotatable casting head；
Fig. 4 is the schematic diagram of the first control connecting rod；
Fig. 5 is the schematic diagram of the second control connecting rod；
Fig. 6 is the first fixed rotating shaft and the schematic diagram of the second fixed rotating shaft；
Fig. 7 is that rotatable casting head is along schematic diagram during the slip casting of Grouting Pipe direction；
Fig. 8 is that rotatable casting head is perpendicular to schematic diagram during the slip casting of Grouting Pipe direction；
Fig. 9 is microorganism injection phase and direction schematic diagram after lining wall.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
It is illustrated in figure 1 microorganism grouting device after a kind of shield tunnel liner wall, including microorganism holding vessel 1, cultivates
Liquid holding vessel 2, mixed liquor holding vessel 3 and rotatable casting head 4, described microorganism holding vessel 1 equipped with the dry bacterium of denitrifying bacteria and
Enrichment medium, equipped with culture fluid in described culture fluid holding vessel 2；Microorganism holding vessel 1 and culture fluid holding vessel 2 pass through respectively
Pipeline is connected with mixed liquor holding vessel 3, and microorganism holding vessel 1 is provided with the first control on the connecting line of mixed liquor holding vessel 3
Valve 5 processed and the first grouting pump 6, the first grouting pump 6 connects the first Pressure gauge 7；Culture fluid holding vessel 2 and mixed liquor holding vessel 3
Connecting line on be provided with the second control valve 8 and the second grouting pump 9, the second grouting pump 9 connects the second Pressure gauge 10；Mixing
The outlet of liquid holding vessel 3 is connected with rotatable casting head 4 by Grouting Pipe 14, and Grouting Pipe 14 is provided with the 3rd control valve 11 He
3rd grouting pump 12, the 3rd grouting pump connects the 3rd Pressure gauge 13.
Wherein, as shown in figures 2-6, rotatable casting head 4 includes that casting head 401, casting head 401 are a rectangular tube, its
Bottom is connected with casting head 4 by flexible steel in flat section tubing 402；The center of relative two side of casting head 401 arranges
One fixes axle 403, two diagonal angles of these two sides is respectively arranged with two rotating shafts, is respectively positioned at the upper of these two sides
The upper end rotating shaft 404 of end and the lower end rotating shaft 405 of the lower end being positioned at these two sides, wherein, upper end rotating shaft 404, first is fixed
Axle 403, lower end rotating shaft 405 are positioned on a diagonal of these two sides；First fix axle 403 by fixing connecting rod 406 with
Being arranged in Grouting Pipe 14 and fix with first the second of axle 403 homonymy to fix axle 407 and be connected, upper end rotating shaft 404 connects to be had
First controls connecting rod 408, is positioned in the Grouting Pipe 14 of the first control connecting rod 408 side and is provided with upper and lower two fixing points, respectively
It is the first fixing point 410 and the second fixing point 411, fixes when the first control connecting rod 408 moves to second from the first fixing point 410
During point 411, one end that the first control connecting rod 408 is connected with upper end rotating shaft 404 can rotate 90 ° around upper end rotating shaft 404；Under described
Connect in end rotating shaft 405 and have the second control connecting rod 409, be positioned in the Grouting Pipe 14 of the second control connecting rod 409 side and be provided with
Lower two fixing points, the respectively the 3rd fixing point 412 and the 4th fixing point 413；When second controls connecting rod 409 from the 4th fixing point
413 when moving to three fixing points 412, and second controls one end that connecting rod 409 is connected with lower end rotating shaft 405 can be around lower end rotating shaft
405 rotate 90 °.
Wherein, the material of flexible steel in flat section tubing 402 is gum elastic.
The cross section of casting head 401 is square, and its catercorner length is less than injected hole diameter.
Distance between first fixing point 410 and the second fixing point 411, the 3rd fixing point 412 and the 4th fixing point 413 it
Between distance identical, all identical with the height of casting head 401.
First fixing point 410 is identical with the height of the 4th fixing point 413.
Such as Fig. 7 and 8, fix axle 403 owing to the middle part of casting head 401 is provided with first, and by fixing connecting rod 406 with
Second fixes axle 407 connects, and casting head 401 is installed on flexible steel in flat section tubing 402, by the first control connecting rod of dynamic both sides
408 and second control connecting rod 409 so that casting head 401 towards changing, it is achieved the slip casting of different directions.
The connecting rod 408 position between the first fixing point 410 and the second fixing point 411, and second is controlled by first
Control the connecting rod 409 position between the 3rd fixing point 412 and the 4th fixing point 413, regulate slip casting direction.When first controls
Connecting rod 408 afterbody is positioned at the first fixing point 410, when the second control connecting rod 409 afterbody is positioned at the 4th fixing point 413, it is achieved
Along Grouting Pipe 14 direction slip casting；Pull the first control connecting rod 408 from first fixing point the 410 to the second fixing point 411, the second control
Connecting rod 409 processed from the 4th fixing point 413 to the 3rd fixing point 412, it is achieved be perpendicular to Grouting Pipe 14 direction slip casting；Use same
Principle, can realize another and be perpendicular to Grouting Pipe 14 direction slip casting.
The grouting method of microorganism grouting device after a kind of above-mentioned shield tunnel liner wall, comprises the following steps:
(1) once grouting performs according to conventional shield tunnel liner grouting behind shaft or drift lining method；
(2) when the secondary grouting of constructing tunnel, at injected hole boring to grouting layer with outside soil layer interface, boring is straight
Footpath ensures that casting head can be deep enough；First this grouting layer is holed, to grouting layer soil layer behind, the denitrification bacterioid after being centrifuged
Dry bacterium and enrichment medium load microbial inoculum holding vessel, and culture fluid loads culture fluid holding vessel, are stored up by regulation microorganism
Deposit the control valve on tank and culture fluid holding vessel export pipeline and grouting pump, control the proportioning of mixing liquid, and be passed through mixed liquor
Holding vessel；
Wherein, microbial inoculum holding vessel to mixed liquor holding vessel inject microbial inoculum time temperature 0 DEG C～10 DEG C it
Between, culture fluid holding vessel to mixed liquor holding vessel inject culture fluid time temperature between 10 DEG C～25 DEG C.Holding vessel has well
Heat-insulating property, in 24 hours, bacterium solution and culture-liquid temp change are less than 15 DEG C；It is fixed that its volume can need according to practice of construction
Do.
(3) realize slip casting by rotatable casting head, inject microbial bacterial mixed liquor and include 3 directions altogether: tunnel serves as a contrast
Build outer normal direction, both sides before and after tunnel axis direction；Wherein, connecting rod is controlled at the first fixing point and the second fixing point by first
Between position, and second control connecting rod position between the 3rd fixing point and the 4th fixing point, regulate slip casting direction.
During slip casting, the injection pressure of mixed liquor is maintained at no more than 2MPa, and occurrence can base area layer soil body infiltration coefficient
Determine.
(4), after microbial bacterial mixed liquor injects, grouting device is taken out, then carries out the closure of injected hole.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. microorganism grouting device after a shield tunnel liner wall, it is characterised in that: include microorganism holding vessel (1), cultivate
Liquid holding vessel (2), mixed liquor holding vessel (3) and rotatable casting head (4), described microorganism holding vessel (1) is thin equipped with denitrification
The dry bacterium of bacterium and enrichment medium, equipped with culture fluid in described culture fluid holding vessel (2)；Microorganism holding vessel (1) and culture fluid storage
Deposit tank (2) to be connected with mixed liquor holding vessel (3) by pipeline respectively, described microorganism holding vessel (1) and mixed liquor holding vessel (3)
Connecting line, and be provided with control valve and slip casting on the connecting line of culture fluid holding vessel (2) and mixed liquor holding vessel (3)
Pump, grouting pump connects Pressure gauge；The outlet of described mixed liquor holding vessel (3) is by Grouting Pipe (14) and rotatable casting head
(4) connecting, Grouting Pipe (14) is provided with control valve and grouting pump, grouting pump connects Pressure gauge.
Microorganism grouting device after shield tunnel liner wall the most according to claim 1, it is characterised in that: described rotatably
Casting head (4) includes that casting head (401), described casting head (401) are a rectangular tube, passes through flexible steel in flat section tubing bottom it
(402) it is connected with casting head (4)；The center of relative two side of described casting head (401) arranges first and fixes axle
(403), two diagonal angles of these two sides are respectively arranged with two rotating shafts, respectively upper end rotating shaft (404) and lower end rotating shaft
(405), described first axle (403) is fixed by fixing connecting rod (406) with to be arranged at Grouting Pipe (14) upper and fix axle with first
(403) the second of homonymy fixes axle (407) connection, and the upper connection of described upper end rotating shaft (404) has the first control connecting rod (408), position
It is provided with upper and lower two fixing points, the respectively first fixing point in the first Grouting Pipe (14) controlling connecting rod (408) side
(410) and the second fixing point (411), the upper connection of described lower end rotating shaft (405) has the second control connecting rod (409), is positioned at the second control
Upper and lower two fixing points, the respectively the 3rd fixing point (412) and the 4th it is provided with in the Grouting Pipe (14) of connecting rod processed (409) side
Fixing point (413).
Microorganism grouting device after shield tunnel liner wall the most according to claim 2, it is characterised in that: described flexibility is even
The material of adapter (402) is gum elastic.
Microorganism grouting device after shield tunnel liner wall the most according to claim 2, it is characterised in that: described casting head
(401) cross section is square, and its catercorner length is less than injected hole diameter.
Microorganism grouting device after shield tunnel liner wall the most according to claim 2, it is characterised in that: described first is solid
Fixed point (410) and the second fixing point (411) between distance, between the 3rd fixing point (412) and the 4th fixing point (413) away from
From identical, all identical with the height of casting head (401).
Microorganism grouting device after shield tunnel liner wall the most according to claim 2, it is characterised in that: described first is solid
Fixed point (410) is identical with the height of the 4th fixing point (413).
7. utilize a grouting method for microorganism grouting device, its feature after the shield tunnel liner wall described in claim 1
It is: comprise the following steps:
(1) once grouting performs according to conventional shield tunnel liner grouting behind shaft or drift lining method；
(2) when the secondary grouting of constructing tunnel, first this grouting layer is holed, to grouting layer soil layer behind, will centrifugal after anti-
The dry bacterium of Nitrite bacteria and enrichment medium load microbial inoculum holding vessel, and culture fluid loads culture fluid holding vessel, by adjusting
Control valve on joint microorganism holding vessel and culture fluid holding vessel export pipeline and grouting pump, control the proportioning of mixing liquid, and
It is passed through mixed liquor holding vessel；
(3) realize slip casting by rotatable casting head, inject microbial bacterial mixed liquor and include 3 directions altogether: outside tunnel-liner
Normal direction, both sides before and after tunnel axis direction；
(4), after microbial bacterial mixed liquor injects, grouting device is taken out, then carries out the closure of injected hole.
Grouting method the most according to claim 7, it is characterised in that: in step (2), microbial inoculum holding vessel is to mixing
When liquid holding vessel injects microbial inoculum, temperature is between 0 DEG C～10 DEG C, and culture fluid holding vessel injects training to mixed liquor holding vessel
During nutrient solution, temperature is between 10 DEG C～25 DEG C.
Grouting method the most according to claim 7, it is characterised in that: in step (3), during slip casting, the injection pressure of mixed liquor
Power is maintained at no more than 2MPa.
Grouting method the most according to claim 7, it is characterised in that: in step (3), control connecting rod the by first
Position between one fixing point and the second fixing point, and the second control connecting rod is between the 3rd fixing point and the 4th fixing point
Position, regulates slip casting direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791405.0A CN106285723B (en) | 2016-08-30 | 2016-08-30 | Microorganism grouting device and method after a kind of shield tunnel liner wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791405.0A CN106285723B (en) | 2016-08-30 | 2016-08-30 | Microorganism grouting device and method after a kind of shield tunnel liner wall |
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| Publication Number | Publication Date |
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| CN106285723A true CN106285723A (en) | 2017-01-04 |
| CN106285723B CN106285723B (en) | 2018-05-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111287770A (en) * | 2020-03-05 | 2020-06-16 | 中煤能源研究院有限责任公司 | Method for preventing coal wall caving by reinforcing coal body through microbial grouting |
| CN111411646A (en) * | 2020-03-27 | 2020-07-14 | 中山大学 | Microbial anti-seepage grouting device and method for river-crossing tunnel lining segment |
| CN111425221A (en) * | 2020-04-23 | 2020-07-17 | 夏玉军 | Combined structure for grouting and repairing tunnel crack by biological slurry and construction method thereof |
| CN111648786A (en) * | 2020-06-13 | 2020-09-11 | 谭凡杰 | Microbial slurry compounding device for tunnel repair and construction method thereof |
| CN115450198A (en) * | 2022-10-31 | 2022-12-09 | 西安建筑科技大学 | Device for solidifying loess foundation through microorganism pressurized grouting and method for solidifying loess foundation |
| CN118351752A (en) * | 2024-06-18 | 2024-07-16 | 中铁九局集团第四工程有限公司 | Blowout prevention assessment device and assessment method considering screw rod driving effect |
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| CN111425221A (en) * | 2020-04-23 | 2020-07-17 | 夏玉军 | Combined structure for grouting and repairing tunnel crack by biological slurry and construction method thereof |
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| CN115450198B (en) * | 2022-10-31 | 2024-05-14 | 西安建筑科技大学 | Device for solidifying loess foundation through microorganism pressurization grouting and method for solidifying loess foundation |
| CN118351752A (en) * | 2024-06-18 | 2024-07-16 | 中铁九局集团第四工程有限公司 | Blowout prevention assessment device and assessment method considering screw rod driving effect |
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