CN105649655B - Be used for following shield structure built-in toward peripheral stratum slip casting reinforcing apparatus - Google Patents
Be used for following shield structure built-in toward peripheral stratum slip casting reinforcing apparatus Download PDFInfo
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- CN105649655B CN105649655B CN201610176195.4A CN201610176195A CN105649655B CN 105649655 B CN105649655 B CN 105649655B CN 201610176195 A CN201610176195 A CN 201610176195A CN 105649655 B CN105649655 B CN 105649655B
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- Prior art keywords
- grouting
- pipe
- shield
- stratum
- steel
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- 230000002093 peripheral effect Effects 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 title claims description 10
- 238000007569 slipcasting Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 230000002787 reinforcement Effects 0.000 claims abstract description 21
- 239000011440 grout Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 6
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 239000002002 slurry Substances 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 6
- 230000003405 preventing effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
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
-
- 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
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Soil Sciences (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
According to the invention, the steel sleeve is driven into the stratum in front of the reserved hole through the reserved hole on the shield body of the shield machine, the grouting reinforcement is carried out on the stratum of the rock around the shield body by using the grouting steel floral tubes which are internally connected in the steel sleeve, and meanwhile, the strata in different ranges around the shield body can be reinforced by adopting the grouting steel floral tubes with different lengths, so that the aims of grouting reinforcement from the shield machine body to the peripheral stratum, controlling the sedimentation deformation of the stratum, and supporting and reducing the shield trapping and construction safety risks are fulfilled. When grouting is carried out to reinforce the stratum, the invention adopts the water-closing ring and the anti-backflow rubber pad, which can effectively prevent the slurry from flowing back into the shield machine body in the grouting process, and ensure the safety and environmental protection of construction.
Description
Technical Field
The invention relates to a reinforcing device for a shield interval, in particular to a reinforcing device for grouting from a shield machine to peripheral strata.
Background
Since the introduction of shield technology into rail transit in China since the end of the nineties of the last century, shield construction is increasingly applied to rail transit construction in China because of the advantages of high mechanization degree, safety, reliability, high construction speed and the like. The shield construction technology is applied to the field of rail transit in China for nearly 20 years, and a standardized construction method is formed in a plurality of shield construction methods; however, with the development of urban space, more and more external constraint factors appear in shield construction, for example, the shield receiving facilities (underground stations or receiving wells) are constructed late, so that the phenomenon that a shield machine cannot avoid stagnation at a certain unfavorable position in a shield interval and arrives after the shield receiving facilities are constructed is more and more common; and because the shield machine waits for a long time, the deformation of the stratum in the stress release process fills the original expanded excavation space, and the shield body is directly wrapped, so that the safety risk of the shield machine when being trapped and recovering the excavation is greatly increased.
At present, domestic engineering technicians propose a treatment method, for example, stratum fracture surface grouting is adopted to improve the characteristics of a stratum so as to fulfill the aim of strengthening the stratum; however, the grouting method needs a large grouting range and limited grouting depth, is easily limited by construction environmental conditions above the tunnel, and is difficult to perform grouting reinforcement on the ground. The other method is to adopt the invention patent of 'steel sleeve grouting reinforcement device for controlling settlement of shield tunnel of soft soil foundation' with patent number CN103573274B to carry out stratum reinforcement to achieve the purpose of controlling stratum deformation, but the invention also only focuses on grouting reinforcement after stratum disturbance to shield segments, and does not relate to advance reinforcement during tunneling of a shield before stratum disturbance and stratum reinforcement during stagnation. Therefore, a device which has a wider application range and can be used for grouting and reinforcing the peripheral stratum from the shield tunneling machine needs to be found.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device for grouting a stratum by using a reserved hole on a shield body and reserving a grouting steel perforated pipe in the stratum to reinforce the stratum.
The technical scheme adopted by the invention is as follows: the utility model provides a be used for following shield constructs built-in toward peripheral stratum slip casting reinforcing apparatus, includes the shield body, its characterized in that: the shield body is provided with a reserved hole at the part contacting with the stratum, and further comprises a steel sleeve and a grouting steel floral tube, wherein the steel sleeve is matched with the grouting steel floral tube in shape and size, an inner sleeve of the grouting steel floral tube is matched with the steel sleeve in shape and size, the steel sleeve is driven into the stratum through the reserved hole, at least one outer annular groove is formed in the contact surface of the steel sleeve with the reserved hole and used for mounting an outer water-blocking ring, a spherical valve is arranged inside the tail end of the steel sleeve, grouting equipment is connected to the tail end of the steel sleeve, at least one inner annular groove is formed in the contact surface of the steel sleeve with the grouting steel floral tube, and the inner annular groove is used for mounting an inner water-blocking ring; the anti-backflow rubber pad is arranged in the grouting steel perforated pipe, at least one grout outlet hole is formed in the front end of the grouting steel perforated pipe, and the grouting steel perforated pipe is kept in the stratum after grouting is completed.
As a further improvement of the invention, the steel sleeve is fixed on the shield body through bolts.
As a further improvement of the present invention, the preformed hole is divided into a vertical preformed hole and a forward inclined preformed hole, and the inclined preformed hole is arranged in front of the vertical preformed hole.
As a further improvement of the invention, the annular groove outside the pipe is provided with two channels, and each annular groove outside the pipe is provided with a water-closing ring outside the pipe.
As a further improvement of the invention, the annular groove in the pipe is provided with two channels, and each channel of annular groove in the pipe is provided with a water-closing ring in the pipe.
As a further improvement of the invention, the pipe water-closing ring adopts an O-shaped water-stopping rubber ring.
As a further improvement of the invention, the water-closing ring in the pipe adopts an O-shaped water-stopping rubber ring.
As a further improvement of the invention, the inner annular groove is arranged at the inner front end of the steel sleeve.
Compared with the mode of the prior art, the invention has the following beneficial effects:
1. simple structure, the ann tears the convenience open. The main components of the invention are composed of a steel sleeve, a grouting steel floral tube, two air-tight rings and an anti-backflow rubber pad, no other connecting device is needed between the steel sleeve and the grouting steel floral tube, the installation and the use are convenient, and the steel sleeve can be recycled after the grouting is finished.
2. The sealing and backflow preventing effects are good. The invention adopts the water-closing ring and the anti-backflow rubber pad, can effectively prevent the slurry from flowing back into the shield machine body in the grouting process, and is safe and environment-friendly.
3. Wide application range and high safety. The method can be used for grouting reinforcement from the shield machine to the surrounding stratum when the ground cannot be reinforced, effectively controls the deformation of the stratum, plays a role in supporting and reducing the safety risk of the shield machine when the shield machine is trapped and the tunneling is recovered, and ensures the safety.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the device and shield position of the present invention;
FIG. 3 is a schematic illustration of a steel casing according to the present invention;
wherein, 1 shield body, 2 preformed holes, 2-1 vertical preformed holes, 2-2 inclined preformed holes, 3 steel sleeves, 3-1 external annular grooves, 3-2 internal annular grooves, 4 grouting steel floral tubes, 4-1 grout outlet holes, 5 external water-closing rings, 6 internal water-closing rings, 7 anti-backflow rubber pads, 8 spherical valves and 9 grouting equipment.
Detailed Description
The invention is further described with reference to the following specific embodiments and the accompanying drawings.
As shown in figure 1, the device for grouting reinforcement from the inside of the shield machine to the peripheral stratum comprises a shield body 1, wherein a reserved hole 2 is arranged on the shield body 1, in addition, the grouting steel flower tube comprises a steel sleeve 3 and a grouting steel flower tube 4, the steel sleeve 3 is matched with the grouting steel flower tube 4 in shape and size, the grouting steel floral tube 4 is sleeved in the steel sleeve 3, the steel sleeve 3 is matched with the preformed hole 2 in shape and size, the steel sleeve 3 is driven into the ground layer through the preformed hole 2, the steel sleeve 3 is fixed on the shield body 1 through a bolt, wherein, the steel sleeve 3 is provided with an outer annular groove 3-1 on the contact surface with the preformed hole, an outer water-closing ring 5 is arranged on the outer annular groove 3-1, a ball valve 8 for controlling grouting is arranged at the tail end in the steel sleeve 3, and the tail end of the steel sleeve 3 is connected with grouting equipment 9; the steel sleeve 3 is provided with an inner annular groove 3-2 on a contact surface with the grouting steel perforated pipe 4, an inner water-closing ring 6 is mounted on the inner annular groove 3-2, the inner end of the grouting steel perforated pipe 4 is provided with an anti-backflow rubber pad 7, the front end of the grouting steel perforated pipe 4 is provided with a grout outlet 4-1, and the grout outlet 4-1 is a quincunx grout outlet. The steel casing pipe 3 is driven into the stratum in front of the reserved hole through the reserved hole 2 in the shield body 1 of the shield tunneling machine, the grouting steel floral tube 4 connected into the steel casing pipe 3 is utilized, grouting reinforcement is conducted on the stratum of the peripheral rock of the shield body, meanwhile, the stratum in different ranges of the periphery can be reinforced through the grouting steel floral tubes 4 with different lengths, grouting reinforcement from the interior of the shield body 1 to the peripheral stratum is achieved, sedimentation deformation of the stratum is controlled, and the purposes of supporting and reducing shield trapping and construction safety risks are achieved. The anti-backflow rubber pad 7 is designed at the tail end of the grouting steel perforated pipe 4, and when the grouting pressure reaches a certain value, the anti-backflow rubber pad 7 can be propped open, so that grouting can be smoothly completed; and after grouting is finished, the slurry can be prevented from flowing back, and the slurry can be prevented from flowing back into the shield machine body by combining the spherical valve 8 in the steel sleeve 3.
As shown in fig. 2, the preformed hole 2 is divided into a vertical preformed hole 2-1 and a forward inclined preformed hole 2-2, and the inclined preformed hole 2-2 is arranged in front of the vertical preformed hole 2-1. The vertical preformed hole 2-1 is used for grouting and reinforcing the periphery of the shield body 1, the inclined preformed hole 2-2 is used for performing advanced grouting and pre-reinforcing, the inclined preformed hole and the grouting steel perforated pipe 4 arranged in the stratum play a role in advanced support, safety guarantee is provided for opening a cabin and changing a tool for a shield, the number of the vertical preformed hole 2-1 and the number of the inclined preformed hole 2-2 on the shield body 1 can be encrypted as required, and the stratum grouting reinforcement range is expanded
As shown in fig. 3, the outer annular groove 3-1 of the pipe is an inward-recessed inverted triangle, two outer annular grooves 3-1 of the pipe are provided, one outer water-stopping ring 5 is provided on each outer annular groove 3-1 of the pipe, the outer water-stopping ring 5 of the pipe adopts an "O" -shaped water-stopping rubber ring, the "O" -shaped water-stopping rubber ring can rotate relative to the steel sleeve 3, and when grouting starts, the "O" -shaped water-stopping rubber ring expands when encountering water, so that the airtightness between the steel sleeve 3 and the preformed hole 2 on the shield body 1 is increased, and grout is prevented from flowing into the shield machine along a gap; the second pipe outer water-closing ring plays a role in further sealing and closing water and preventing slurry from flowing back under the condition that the first pipe outer water-closing ring possibly fails. The annular groove 3-2 in the pipe is provided with two channels, the annular groove 3-2 in the pipe is arranged at the front end in the steel sleeve 3, the annular groove 3-2 in each channel of the pipe is provided with a water-blocking ring 6 in the pipe, and the water-blocking ring 6 in the pipe adopts an O-shaped water-stopping rubber ring. In the process that the grouting steel floral tube 4 is driven into the stratum through the steel sleeve 3, the O-shaped water-stopping rubber ring expands when encountering water, seals a gap between the steel sleeve 3 and the grouting steel floral tube 4, prevents water from flowing into the shield tunneling machine through the gap, and plays a role in preventing grout from flowing back into the shield tunneling machine in the grouting process, and the water-closing ring in the second pipe plays a role in further sealing and closing water and preventing grout from flowing back under the condition that the water-closing ring in the first pipe possibly fails; the water-blocking ring 6 is arranged in the steel sleeve 3, the steel sleeve 3 is convenient to take out after grouting is finished, and the steel flower grouting pipe 4 reserved in the stratum can play a role of the anchor rod in reinforcing the stratum.
The construction method comprises the following steps: when grouting reinforcement is carried out from the interior of the shield to the peripheral stratum, opening a preformed hole 2 on the shield body 1, and driving a steel sleeve 3 into the peripheral stratum through the preformed hole 2 on the shield body 1 to be tightly attached to the excavated rock surface of the shield; the grouting steel floral tube 4 is inserted into the directional steel sleeve 3 and pushed into the stratum by a drilling machine; during grouting construction, the spherical valve 8 is opened, grouting equipment 9 is started to start grouting, when grouting pressure rises to a certain value, the anti-backflow rubber pad 7 in the grouting steel perforated pipe 4 is propped open, and grout can flow into a peripheral rock stratum through quincunx grout outlet holes in the grouting steel perforated pipe 4, so that a grouting reinforcement area is formed; after grouting, closing the grouting equipment 9 and the spherical valve 8, removing the grouting equipment 9, pulling out the steel sleeve 3 after the grout is initially set for a period of time, and finally closing the preformed hole 2 on the shield body 1, wherein the grouting steel perforated pipe 4 is left in the stratum.
In summary, the actual samples of the present invention are prepared according to the description and the drawings, and after a plurality of usage tests, the effect of the usage tests proves that the present invention can achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only for convenience of illustration and not intended to limit the invention in any way, and those skilled in the art will be able to make equivalents of the features of the invention without departing from the technical scope of the invention.
Claims (7)
1. The utility model provides a be used for following shield constructs built-in toward peripheral stratum slip casting reinforcing apparatus, includes the shield body, its characterized in that: the shield body is provided with a preformed hole, and in addition, the shield body also comprises a steel sleeve and a grouting steel floral tube, wherein the steel sleeve is matched with the grouting steel floral tube in shape and size, the grouting steel floral tube is sleeved in the steel sleeve, the steel sleeve is matched with the preformed hole in shape and size, and the steel sleeve is driven into a stratum through the preformed hole; the anti-backflow rubber pad is arranged in the grouting steel perforated pipe, at least one grout outlet hole is formed in the front end of the grouting steel perforated pipe, and the grouting steel perforated pipe is kept in the stratum after grouting is completed.
2. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the preformed hole is divided into a vertical preformed hole and a forward oblique preformed hole, and the oblique preformed hole is arranged in front of the vertical preformed hole.
3. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the annular groove outside the pipe is provided with two channels, and each annular groove outside the pipe is provided with a water-closing ring outside the pipe.
4. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the annular groove in the pipe is provided with two channels, and the annular groove in each channel of the pipe is provided with a water-closing ring in the pipe.
5. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the pipe closed water ring adopts an O-shaped water stop rubber ring.
6. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the water-closing ring in the pipe adopts an O-shaped water-stopping rubber ring.
7. A device for grouting reinforcement from within a shield machine to a surrounding formation according to claim 1, wherein: the inner annular groove is arranged at the front end of the inner part of the steel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176195.4A CN105649655B (en) | 2016-03-25 | 2016-03-25 | Be used for following shield structure built-in toward peripheral stratum slip casting reinforcing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176195.4A CN105649655B (en) | 2016-03-25 | 2016-03-25 | Be used for following shield structure built-in toward peripheral stratum slip casting reinforcing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649655A CN105649655A (en) | 2016-06-08 |
| CN105649655B true CN105649655B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610176195.4A Active CN105649655B (en) | 2016-03-25 | 2016-03-25 | Be used for following shield structure built-in toward peripheral stratum slip casting reinforcing apparatus |
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| CN (1) | CN105649655B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180024A (en) * | 2018-03-07 | 2018-06-19 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of air bag grouting stop-valve tube assembly convenient for bored grouting construction |
| CN108756910B (en) * | 2018-05-13 | 2019-12-27 | 中铁十六局集团北京轨道交通工程建设有限公司 | Intelligent early warning type advanced grouting device for earth pressure balance shield and construction method |
| CN109837903B (en) * | 2019-01-24 | 2020-11-03 | 中国建筑第八工程局有限公司 | Ground reinforcing grouting device and construction method |
| CN112031822B (en) * | 2020-08-19 | 2022-10-25 | 北京大地高科地质勘查有限公司 | Be used for colliery roof slip casting to consolidate with automatic horizontal slip casting equipment |
| JP7185890B1 (en) | 2021-12-22 | 2022-12-08 | Ｎ．Ｊｅｔエンジニアリング株式会社 | SOIL IMPROVEMENT DEVICE, UNCAVATOR, AND SOIL IMPROVEMENT METHOD |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777198Y (en) * | 2004-08-09 | 2006-05-03 | 周德祥 | Prepoured-in concrete type simple shield tunneller |
| CN102926770A (en) * | 2012-11-08 | 2013-02-13 | 中国神华能源股份有限公司 | Underground draining and grouting process in thin bedrock and thick loose sand layer rich water areas |
| CN203022770U (en) * | 2013-01-16 | 2013-06-26 | 中铁一局集团有限公司 | Grouting device for shield tunnel |
| CN103993888A (en) * | 2011-12-26 | 2014-08-20 | 中铁四局集团有限公司 | Improved shield tunneling machine structure for tunnel face reinforcement construction in shield tunneling machine cabin |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3629670B2 (en) * | 1997-05-29 | 2005-03-16 | 清水建設株式会社 | Tunneling method |
| JP4425299B2 (en) * | 2007-08-02 | 2010-03-03 | 大豊建設株式会社 | Ground improvement method and shield |
| CN101761345A (en) * | 2010-01-12 | 2010-06-30 | 中国建筑西南勘察设计研究院有限公司 | Reinforcement device for tunnel top soil and construction method thereof |
| JP2011190602A (en) * | 2010-03-15 | 2011-09-29 | Toda Constr Co Ltd | Back-filling injection system |
| JP6217095B2 (en) * | 2013-03-13 | 2017-10-25 | 株式会社大林組 | Tunneling machine resuming method and tunneling machine used therefor |
| CN205445634U (en) * | 2016-03-25 | 2016-08-10 | 粤水电轨道交通建设有限公司 | Be used for constructing built -in toward peripheral stratum slip casting reinforcing apparatus from shield |
-
2016
- 2016-03-25 CN CN201610176195.4A patent/CN105649655B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777198Y (en) * | 2004-08-09 | 2006-05-03 | 周德祥 | Prepoured-in concrete type simple shield tunneller |
| CN103993888A (en) * | 2011-12-26 | 2014-08-20 | 中铁四局集团有限公司 | Improved shield tunneling machine structure for tunnel face reinforcement construction in shield tunneling machine cabin |
| CN102926770A (en) * | 2012-11-08 | 2013-02-13 | 中国神华能源股份有限公司 | Underground draining and grouting process in thin bedrock and thick loose sand layer rich water areas |
| CN203022770U (en) * | 2013-01-16 | 2013-06-26 | 中铁一局集团有限公司 | Grouting device for shield tunnel |
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| CN105649655A (en) | 2016-06-08 |
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