CN107676105A - A kind of anti-blocking component of shield machine slip casting - Google Patents
A kind of anti-blocking component of shield machine slip casting Download PDFInfo
- Publication number
- CN107676105A CN107676105A CN201610624025.8A CN201610624025A CN107676105A CN 107676105 A CN107676105 A CN 107676105A CN 201610624025 A CN201610624025 A CN 201610624025A CN 107676105 A CN107676105 A CN 107676105A
- Authority
- CN
- China
- Prior art keywords
- slip casting
- piston
- shield machine
- casting
- head
- 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.)
- Granted
Links
- 238000007569 slipcasting Methods 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000005266 casting Methods 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000011440 grout Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 235000019353 potassium silicate Nutrition 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011800 void material Substances 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of anti-blocking component of shield machine slip casting, the slip casting piston moved back and forth including casting head and in casting head, two liquid injection lines are connected on casting head respectively, duct is opened up in slip casting piston, slip casting piston nose forms with the inwall of casting head and mixes cavity, the mixing cavity connects with a liquid injection line, and another liquid injection line in slip casting piston with opening up hole link.Compared with prior art, simple structure of the present invention, occupies little space, and has higher economy and reliability, the self property of different slurries is adapted to, and adapts to grout coordinate ratio change, improves slip casting efficiency and slip casting effect, rinse water is saved, avoids slurries from wasting, it is basic to solve slip casting blockage problem.
Description
Technical field
The present invention relates to shield method mortar depositing construction field, more particularly, to a kind of anti-blocking component of shield machine slip casting.
Background technology
, need to be by with tunneling the synchronous grouting synchronously carried out, (deviating from shield tail in shield tail space in shield tunneling process
Pipe-plate lining and the soil body structure void) formed the extremely short time in, fill appropriate injecting paste material be filled with it is closely knit,
So that surrounding Rock And Soil is timely supported, caving in for the soil body is effectively prevented, controls the sedimentation of earth's surface, fixed section of jurisdiction position
Put, prevent section of jurisdiction behind ponding, ensure indeformable and not permeable leak after shield tunnel work.
The stabilization of synchronous grouting system is effective, and ground is sunk in railroad crossing, city existing building and airfield runway etc.
When drop requires very harsh operating mode, often ensure one of key factor of engineering safety and quality.
In current Suporting structure, synchronous grouting system mainly uses two kinds of equipment of two fluid grouting and single fluid grouting.Two
Under kind system synchronous grouting compares, the grout cures speed of single slurry slip casting construction method is slow, and cement slurry sets speed control is stranded
Difficulty, range of scatter is filled to it and is difficult to control, the easily unordered diffusion of pressure slurries, not only waste slurries, and have a strong impact on that it is filled out
Fill consolidation effect；Two-shot grouting method can adjust the setting time of slurries, but because dual slurry is usually in Grouting Pipe hybrid chamber
Stratum is injected after interior mixing, therefore the property noted of slurries, the adjustability of setting time are poor, plugging phenomenon easily occur, can not
Slip casting, influences mortar depositing construction efficiency, and grouting quality can more be influenceed not in time by handling, and then influences the safety and progress of engineering.
Therefore, although two fluid grouting grouting quality is easy to control, slip casting effect is good, and slip casting hybrid chamber position is easily blocked up
Plug, even if often being cleaned, the part grains of sand in slurry are deposited in slurry pipe, are gradually reduced slurry pipe latus rectum, can also be caused
Block, and cleaning will once expend substantial amounts of clear water or bentonite, the problem of also bringing sewage discharge in tunnel.Actually applying
During work, operating personnel often do not pay attention to the cleaning and cleaning of pipeline, once stopping pushing away for a long time, are negligent of clearing up again, then slip casting
System necessarily blocks, and subsequently promotes the quality of work to bring hidden danger for shield.
The double-liquid grouting system filling mixed method that the outer shield manufacturer of Current Domestic uses mainly has two kinds：A kind of A, B
Liquid respectively sets the pipeline for independently leading to the soil body, is freely mixed in the soil body after being filled into the soil body respectively；Another is in shield shell
(one section of hybrid chamber) mixes injection shield tail space in internal pipeline.
Poor using the slurries mixed effect of first way, there are larger fluctuation scope, therefore slip casting the grout cures time
Quality is unstable；Second way slurries good mixing effect, the grout cures time is stably and controllable, and grouting quality is stable, but due to
For hybrid chamber in shield shell, B liquid pipes end uses unidirectional rubber case, but because the outlet of B liquid pipes is enclosed in A liquid pipelines substantially, B liquid
Flow to unstable, and space is narrow, once slip casting pause or discontinuous, is negligent of cleaning or cleans insufficient, pipeline easily produces
It is raw to block.Produced once blocking, need to take considerable time and carry out pipeline dismounting dredging, and have in the case where external pressure is higher
Certain risk of gushing.
Each manufacturer blocks to grouting pipeline at this stage and pass blocking problem does not have perfect solution, and some producers are to slip casting
The cross sectional shape of pipeline optimizes, and some producers use the grouting gun with scavenger circuit, but in actual use, grouting pipeline
Blocking and pass blocking situation are still the big persistent ailment in work progress.
Chinese patent CN 103982198A disclose a kind of shield dual slurry filling adaptor, and its internal thread three-way pipe passes through outer
Joint I connects hollow three-way pipe, and section of jurisdiction connector is connected with the right side of hollow three-way pipe, coupling is provided with above hollow three-way pipe
II, coupling II is provided with the check valve for being used for controlling injection waterglass interface, and waterglass pipe is connected with check valve, by hollow
Three-way pipe injects waterglass into section of jurisdiction connector.But the patent application is when stopping slip casting, outside slurries and debris can be with
Section of jurisdiction connector and hollow three-way pipe are invaded, if ball valve is opening, outside slurries and debris can also invade whole
Individual cement mortar pipeline, this be also at present through being commonly encountered the problem of.And wherein waterglass pipeline is in water in non-slip casting in fact
In the range of mud/mixed zone pipeline, blocking can be also produced in mixed zone if there are remnants by the waterglass of check valve.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind solves two fluid grouting
Easy plugging in system, and slurries mixing quality difference and influence the situation of grouting quality, reduce slurries loss, strengthen shield set
The anti-blocking component of shield machine slip casting of the standby adaptability to various bad grounds.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of anti-blocking component of shield machine slip casting, including casting head and the slip casting piston that is moved back and forth in casting head,
Two liquid injection lines are connected on described casting head respectively,
Duct is opened up in described slip casting piston, slip casting piston nose forms with the inwall of casting head and mixes cavity, with
Piston movement, hybrid chamber volume can change therewith, and mixing cavity connects with a liquid injection line, another liquid note
Enter pipeline with opening up hole link in slip casting piston.Stop from slip casting to slip casting, the stretching process of piston has preferable unimpeded
Function.The effect of this is not available for conventional invention.Piston is connected with the piston rod of an oil cylinder, has larger thrust, complete
Solidification or half coagulum can be released casting head pipeline entirely.
Location guide is set in described casting head, there is the function of preventing the intrusion of bulk debris, block casting head, slip casting is lived
Plug center is provided with the perforate being engaged with the guide rod, and with the stretching of piston head, a small amount of remaining slurry in piston head endoporus is squeezed
Go out, do not reserve the space of mixed serum.
Described location guide is affixed using cross form and casting head inwall, and the cross strut in casting head exit can
So that bulk debris to be blocked, the possibility of blocking is also reduced.
The end of described slip casting piston is pintongs inverted cone surface form, overlaps, makes with the cross bar of the cross of location guide
Obtain and do not stay gap in piston head mixed zone substantially, and remaining slurry in casting head or half, full coagulum can be shoveled out piston head
Endoporus, because mixed zone is shorter, cylinder thrust crushes to grout cures thing enough.
The duct opened up in described slip casting piston is the axial hole axially opened up along slip casting piston and connected with axis hole
Several radial holes.
Described axial hole connects with the perforate that slip casting piston centre is engaged with guide rod.
The front end of described slip casting piston is provided with the one-way sealing for preventing that slurries from flowing back in slip casting piston from mixing cavity
Component.
The strong rear cylinder piston rod connection in rear end of described slip casting piston.
Compared with prior art, simple structure of the present invention, occupies little space, and has higher economy and reliability,
The self property of different slurries is adapted to, and adapts to grout coordinate ratio change, slip casting efficiency and slip casting effect is improved, saves cleaning
Water, slurries are avoided to waste, it is basic to solve slip casting blockage problem, the downtime of shield machine is reduced, so as to effectively lower shield machine
Tunneling construction cost and maintenance cost.
Brief description of the drawings
Fig. 1 carries out two fluid grouting operating diagram for the present invention；
Fig. 2 carries out single fluid grouting operating diagram for the present invention；
Fig. 3 is the structural representation when present invention stops slip casting；
Fig. 4 is the part-structure schematic diagram of casting head；
Fig. 5 is the part-structure schematic diagram of slip casting piston.
In figure, 1 is casting head, and 2 be slip casting piston, and 3 be casting head guide rod, and 4 be A liquid pipelines, and 5 be B liquid pipelines, and 6 be work
Radial hole is filled in, 7 mixed zones, 8 be piston axial hole.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of anti-blocking component of shield machine slip casting, its structure as Figure 1-3, mainly include casting head 1, slip casting piston 2 and A
Liquid pipeline 4, B liquid pipelines 5.Wherein casting head guide rod 3 is affixed by cross strut and the inwall of casting head 1, as shown in figure 4, and with
Piston axial hole 8 is engaged；Slip casting piston 2 is arranged on inside casting head 1, and the rear end of slip casting piston 2 is connected with cylinder piston rod, can
Piston movement is done inside casting head 1, so that the volume of mixed zone 7 changes；The inside of casting head 1 is close to port of export conduct
Mixed zone 7, mixed zone 7 communicate in side with A liquid pipelines 4, and rear end communicates with the piston axial hole 8 of slip casting piston 2, are noted in biliquid
The B liquid that the A liquid and piston axial hole 8 that A liquid pipelines 4 inject during slurry inject is after the mixing of mixed zone 7 to the outer injection soil body.Stopping
During slip casting operation, slip casting piston 2 stretches out, and until mixed zone 7, volume is changed into 0.
The structure of slip casting piston 2 on slip casting piston 2 as shown in figure 5, be provided with several piston radial holes 6, in slip casting operation
When, slip casting piston 2 is retracted, and piston radial hole 6 communicates with B liquid pipelines 5, meanwhile, piston radial hole 6 communicates with piston axial hole 8.
When stopping slip casting operation, slip casting piston 2 stretches out, and piston radial hole 6 and B liquid pipelines 5 completely cut off.The periphery of slip casting piston 2 and piston
Axial hole inwall is provided with sealing, can prevent slurries intrusion rear mechanism, intrusion B liquid pipelines 5 respectively.
Match between 4 valve inverted cone surface bodies of the front end of slip casting piston 2 and the cross strut of the casting head port of export, can be to mixing
Area half, full coagulum carry out attrition crushing, residue in the range of mixed zone can all be extruded.
The course of work of anti-blocking grouting device comprises the following steps：
Normal two fluid grouting operating diagram is as shown in figure 1, slip casting piston 2 is reduced to inside casting head, and stroke is on earth, this
When A liquid pipelines 4 connected with mixed zone 7, B liquid pipelines 5 connect with the piston radial hole 6 on piston 2, piston radial hole 6 itself with
Piston axial hole 8 is connection, therefore B liquid pipelines 5 connect with mixed zone 7, therefore the proportioning mixing that can carry out A, B liquid simultaneously adds
Note, A, B liquid export after being mixed in mixed zone 7 from casting head 1 injects the soil body.
Normal single fluid grouting operating diagram is as shown in Fig. 2 slip casting piston 2 is reduced to inside casting head, to after specific stroke,
Now A liquid pipelines 4 connect with mixed zone 7, and B liquid pipelines 5 completely cut off with the piston radial hole 6 on piston 2, therefore B liquid pipelines 5 are with mixing
Area 7 completely cuts off, therefore during progress A liquid filling, B liquid and A liquid pipelines are non-interference, and A liquid goes out after by mixed zone 7 from casting head 1
The mouth injection soil body.
Stop slip casting operating diagram as shown in figure 3, slip casting piston 2 extends slip casting end surface, and stroke is maximum, now mixes
It is 0 to close the volume of area 7, and A, B liquid pipeline are hedged off from the outer world in sealing range, and A, B liquid pipeline mutually completely cut off, therefore will not produce
Situation about mutually invading.Simultaneously during the stretching of piston 2, original remains in the slurries of mixed zone 7, and half, full coagulum is by piston 2
Casting head 1 is extruded, prevents from blocking mixed zone and A, B liquid pipeline.
Action is extended and retracted by piston, you can 3 kinds of operating modes more than meeting, and with the function of preventing from blocking.
Two fluid grouting can only utilize narrow and small sky in shield afterbody housing by the limitation of mixing pattern and the device space at present
Between, that mixed effect is bad or pipeline blockage be present, these slip casting problems easily cause grouting layer easily liquefies, bleeding is big,
Engineering defect and the disasters such as antidetonation, bearing capacity be not low and later stage ground settlement is big.
This project elementary solution is determined easy plugging in double-liquid grouting system, and slurries mixing quality difference and influence grouting quality
Situation, reduce slurries loss, strengthen Suporting structure to the adaptability of various bad grounds, simplify filling system operation and dimension
Nurse makees, and saves engineering time and relevant cost.
Claims (8)
1. a kind of anti-blocking component of shield machine slip casting, it is characterised in that the component includes casting head and moved back and forth in casting head
Slip casting piston,
Two liquid injection lines are connected on described casting head respectively,
Duct is opened up in described slip casting piston, slip casting piston nose forms with the inwall of casting head and mixes cavity, and the mixing is empty
Chamber connects with a liquid injection line, and another liquid injection line in slip casting piston with opening up hole link.
2. a kind of anti-blocking component of shield machine slip casting according to claim 1, it is characterised in that set in described casting head solid
Determine guide rod, slip casting piston centre is provided with the perforate being engaged with the guide rod.
3. a kind of anti-blocking component of shield machine slip casting according to claim 2, it is characterised in that described location guide uses
Cross form and casting head inwall are affixed.
A kind of 4. anti-blocking component of shield machine slip casting according to claim 3, it is characterised in that the end of described slip casting piston
Portion is pintongs inverted cone surface form, is overlapped with the cross bar of the cross of location guide.
5. a kind of anti-blocking component of shield machine slip casting according to claim 2, it is characterised in that opened in described slip casting piston
If duct be the axial hole axially opened up along slip casting piston and the several radial holes connected with axis hole.
6. a kind of anti-blocking component of shield machine slip casting according to claim 5, it is characterised in that described axial hole and slip casting
The perforate connection that piston centre is engaged with guide rod.
7. a kind of anti-blocking component of shield machine slip casting according to claim 5, it is characterised in that before described slip casting piston
End is provided with the one-way sealing component for preventing that slurries from flowing back in slip casting piston from mixing cavity.
8. a kind of anti-blocking component of shield machine slip casting according to claim 1, it is characterised in that after described slip casting piston
Strong rear cylinder piston rod is held to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624025.8A CN107676105B (en) | 2016-08-02 | 2016-08-02 | Grouting anti-blocking component of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624025.8A CN107676105B (en) | 2016-08-02 | 2016-08-02 | Grouting anti-blocking component of shield tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676105A true CN107676105A (en) | 2018-02-09 |
| CN107676105B CN107676105B (en) | 2020-01-14 |
Family
ID=61133457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610624025.8A Active CN107676105B (en) | 2016-08-02 | 2016-08-02 | Grouting anti-blocking component of shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676105B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922562A (en) * | 2021-03-12 | 2021-06-08 | 河南理工大学 | Multifunctional gas extraction hole sealing method |
| CN114517683A (en) * | 2022-02-28 | 2022-05-20 | 英诺威阀业有限公司 | Shield tail double-liquid synchronous grouting mixer |
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| CN201214788Y (en) * | 2008-06-11 | 2009-04-01 | 成都现代万通锚固技术有限公司 | Grouting device under pressure for mortar anchor rod |
| CN101476469A (en) * | 2009-01-06 | 2009-07-08 | 上海隧道工程股份有限公司 | Dual-fluid synchronous slip casting and cleaning switching mechanism |
| CN201560766U (en) * | 2010-02-26 | 2010-08-25 | 海瑞克(广州)隧道设备有限公司 | Shield rear double-liquid grouting system for shield machine |
| CN102635117A (en) * | 2011-02-11 | 2012-08-15 | 上海申通地铁集团有限公司 | On-off type grouting front end device |
| CN102926760A (en) * | 2012-11-16 | 2013-02-13 | 上海市机械施工有限公司 | Grouting device and application method thereof |
| CN103835730A (en) * | 2014-03-10 | 2014-06-04 | 上海盾构设计试验研究中心有限公司 | Circular section synchronous rotary jet grouting device |
| CN203669882U (en) * | 2013-10-15 | 2014-06-25 | 中铁工程装备集团有限公司 | Shield tail synchronous embedding type double liquid slip casting device of shield tunneling machine |
| CN103982198A (en) * | 2014-04-24 | 2014-08-13 | 中铁四局集团第二工程有限公司 | Shield double-fluid grouting joint |
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
| CN205895264U (en) * | 2016-08-02 | 2017-01-18 | 上海力行工程技术发展有限公司 | Shield constructs quick -witted slip casting and prevents stifled component |
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2016
- 2016-08-02 CN CN201610624025.8A patent/CN107676105B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201214788Y (en) * | 2008-06-11 | 2009-04-01 | 成都现代万通锚固技术有限公司 | Grouting device under pressure for mortar anchor rod |
| CN101476469A (en) * | 2009-01-06 | 2009-07-08 | 上海隧道工程股份有限公司 | Dual-fluid synchronous slip casting and cleaning switching mechanism |
| CN201560766U (en) * | 2010-02-26 | 2010-08-25 | 海瑞克(广州)隧道设备有限公司 | Shield rear double-liquid grouting system for shield machine |
| CN102635117A (en) * | 2011-02-11 | 2012-08-15 | 上海申通地铁集团有限公司 | On-off type grouting front end device |
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| CN203669882U (en) * | 2013-10-15 | 2014-06-25 | 中铁工程装备集团有限公司 | Shield tail synchronous embedding type double liquid slip casting device of shield tunneling machine |
| CN103835730A (en) * | 2014-03-10 | 2014-06-04 | 上海盾构设计试验研究中心有限公司 | Circular section synchronous rotary jet grouting device |
| CN103982198A (en) * | 2014-04-24 | 2014-08-13 | 中铁四局集团第二工程有限公司 | Shield double-fluid grouting joint |
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922562A (en) * | 2021-03-12 | 2021-06-08 | 河南理工大学 | Multifunctional gas extraction hole sealing method |
| CN112922562B (en) * | 2021-03-12 | 2022-11-25 | 河南理工大学 | Multifunctional gas extraction hole sealing method |
| CN114517683A (en) * | 2022-02-28 | 2022-05-20 | 英诺威阀业有限公司 | Shield tail double-liquid synchronous grouting mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107676105B (en) | 2020-01-14 |
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