CN110608042B - Synchronous grouting device for shield tunnel construction - Google Patents
Synchronous grouting device for shield tunnel construction Download PDFInfo
- Publication number
- CN110608042B CN110608042B CN201911042042.0A CN201911042042A CN110608042B CN 110608042 B CN110608042 B CN 110608042B CN 201911042042 A CN201911042042 A CN 201911042042A CN 110608042 B CN110608042 B CN 110608042B
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- CN
- China
- Prior art keywords
- pressure equalizing
- slurry
- ring
- equalizing pipe
- slurry supply
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- 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.)
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 abstract 1
- 239000011440 grout Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003466 welding Methods 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
-
- 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)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a synchronous grouting device for shield tunnel construction, which comprises a pressure equalizing pipe ring and at least four slurry supply pipes, wherein the pressure equalizing pipe ring is fixed on the tail end face of a shield shell, the slurry supply pipes are uniformly distributed at intervals in the shield shell at the tail part and are longitudinally arranged, one end of each slurry supply pipe is communicated with the pressure equalizing pipe ring, the other end of each slurry supply pipe is communicated with the slurry supply device, a circular seam is formed on the outer end face of the pressure equalizing pipe ring, and an openable sealing plate is arranged on the circular seam. The synchronous grouting device has the advantages that the synchronous grouting device is simple in structure, during the excavation construction process of the shield machine, the pressure-equalizing stable synchronous grouting between the pipe piece and surrounding soil bodies can be realized through the pressure-equalizing pipe ring, disturbance of shield tunnel construction to the surrounding soil bodies is reduced, and accordingly the surrounding soil bodies are prevented from excessively deforming and excessively settling on the earth surface.
Description
Technical Field
The invention belongs to the technical field of shield tunnel construction, and particularly relates to a synchronous grouting device for shield tunnel construction.
Background
In the existing shield tunnel construction process, the synchronous grouting material is filled in a gap formed between the outer boundary of the shield shell and the outer boundary of the shield tunnel, only four grouting pipes, even two grouting pipes or a limited number of grouting openings are arranged, when the synchronous grouting material is injected into soil, the pressure of the synchronous grouting material is reduced rapidly, even the splitting phenomenon is formed at the position of the grouting openings due to overlarge pressure, the soil is deformed in a space away from the position of the grouting openings due to incapability of timely grouting, so that the earth surface subsides, disturbance of shield tunnel construction to surrounding soil is increased, and the spliced shield tunnel is easy to deviate from a design axis, so that the attitude control of a shield machine is further influenced.
Disclosure of Invention
According to the defects of the prior art, the invention provides the synchronous grouting device for shield tunnel construction, and the synchronous grouting device is fixed on the pressure equalizing pipe ring communicated with the grouting pipe on the tail end face of the shield shell, so that the pressure equalizing stable synchronous grouting between the pipe piece and the soil body is realized.
The invention is realized by the following technical scheme:
the utility model provides a synchronous grouting device of shield tunnel construction, its characterized in that synchronous grouting device includes equalizer ring and four piece at least confession thick liquid pipe, the equalizer ring is fixed in on the tail end face of shield shell, each confession thick liquid pipe is in tail end uniform interval distributes in the shield shell and along vertical arrangement, the one end of confession thick liquid pipe with the equalizer ring is linked together, the other end is linked together with confession thick liquid device, wherein, have the girth on the outer terminal surface of equalizer ring, be provided with the openable shrouding on the girth.
The pressure equalizing pipe ring is welded and fixed on the tail end face of the shield shell, and a through hole is formed in the inner end face of the pressure equalizing pipe ring, corresponding to the slurry supply pipe, so as to be communicated with the slurry supply pipe.
The slurry stopping rubber ring plate is covered on the circumferential seam, and the outer edge part of the slurry stopping rubber ring plate is fixed on the outer end surface of the pressure equalizing pipe ring through a rubber plate clamping nail.
And a magnet is fixed on the inner edge part of the slurry-stopping rubber ring plate, so that the inner edge part of the slurry-stopping rubber ring plate is adsorbed on the outer end surface of the pressure equalizing pipe ring.
The magnets are distributed on the inner edge of the slurry-stopping rubber annular plate at intervals along the circumferential direction.
The magnet is a ring-shaped magnet arranged on the inner edge part of the slurry-stopping rubber ring plate.
The number of the slurry supply pipes arranged in the shield shell is six.
The longitudinal section of the pressure equalizing pipe ring is rectangular.
The invention has the advantages that: the synchronous grouting device is simple in structure, and in the process of excavating construction of the shield machine, stable synchronous grouting of pressure equalization between the duct piece and surrounding soil bodies can be realized through the pressure equalization pipe ring, disturbance of shield tunnel construction to the surrounding soil bodies is reduced, and accordingly the surrounding soil bodies are prevented from excessively deforming and excessively settling on the earth surface.
Drawings
FIG. 1 is a schematic cross-sectional view of the front face of a shield shell according to the present invention;
FIG. 2 is a schematic cross-sectional view of the tail end face of the shield shell of the present invention;
FIG. 3 is a schematic view of the tail end portion of the section of the non-grouting shield A-A of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the tail end portion of the section of the injected shield shell A-A of FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the tail end portion of the section B-B of the non-grouting shield of FIG. 1 according to the present invention;
FIG. 6 is a schematic view of the tail end portion of the section B-B of the injected shield shell of FIG. 1 according to the present invention;
FIG. 7 is a schematic view of a slurry-stop rubber ring plate with magnets disposed on the inner edge thereof in a slurry-injected state according to the present invention;
FIG. 8 is a schematic view of the present invention in which magnets are provided on the inner edge of the slip-stop rubber ring plate in the non-slip state.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
as in fig. 1-8, reference numerals 1-are respectively: the slurry-stopping device comprises a shield shell 1, a slurry supply pipe 2, a pressure equalizing pipe ring 3, a circumferential seam 4, a slurry-stopping rubber ring plate 5, a rubber plate clamp 6 and a magnet 7.
Example 1: as shown in fig. 1-6, the present embodiment specifically relates to a synchronous grouting device for shield tunnel construction, which mainly includes a pressure equalizing pipe ring 3 and a plurality of slurry supply pipes 2, each slurry supply pipe 2 is communicated with the pressure equalizing pipe ring 3 and supplies grouting material into the pressure equalizing pipe ring, and the pressure equalizing pipe ring 3 injects grouting material into a gap formed between the outer boundary of a shield shell 1 and the outer boundary of the shield tunnel through a circumferential seam 4 thereon, so as to prevent earth surface subsidence caused by soil deformation and reduce disturbance of the shield tunnel construction to surrounding soil.
As shown in fig. 1-6, a shield shell 1 on a shield machine is cylindrical, a plurality of slurry supply pipes 2 are distributed in the shield shell 1 at intervals along the circumferential direction, the slurry supply pipes 2 are specifically arranged along the longitudinal direction of the shield shell 1, and 4 or 6 slurry supply pipes 2 can be specifically arranged in the shield shell 1 according to actual engineering conditions; one end of each slurry supply pipe 2 close to the front end face of the shield shell 1 is specifically communicated with slurry supply equipment and pumps grouting materials by the slurry supply equipment, one end of each slurry supply pipe 2 positioned at the tail end face of the shield shell 1 is specifically communicated with the cavity of the pressure equalizing pipe ring 3, and the slurry supply equipment pumps grouting materials into the cavity of the pressure equalizing pipe ring 3 through each slurry supply pipe 2.
As shown in fig. 1-6, the pressure equalizing pipe ring 3 is in an annular structure, the longitudinal section of the pressure equalizing pipe ring 3 is rectangular, the inner end face of the pressure equalizing pipe ring 3 is particularly fixed on the tail end face of the shield shell 1 in a welding mode, and through holes are respectively formed in the inner end face of the pressure equalizing pipe ring 3 at positions corresponding to the slurry feeding pipe 2, so that the slurry feeding pipe 2 is communicated with the cavity of the pressure equalizing pipe ring 3. The circumferential seam 4 for outward slurry discharge is formed on the outer end surface of the pressure equalizing pipe ring 3, the circumferential seam 4 is formed on the pressure equalizing pipe ring 3 in a ring shape, so that continuous slurry discharge is formed, and compared with slurry discharge holes which are formed on the tail end surface of the shield shell 1 at intervals in the past, the continuous slurry discharge circumferential seam 4 adopted in the embodiment can reduce the grouting pressure difference value of each position on the pressure equalizing pipe ring 3, and uniform slurry injection is realized.
As shown in fig. 3-6, on the outer end surface of the pressure equalizing pipe ring 3, an openable sealing plate is further provided for controlling the opening and closing of the ring seam 4, the openable sealing plate is specifically a slurry stopping rubber ring plate 5 adapted to the ring seam 4, the ring width of the slurry stopping rubber ring plate 5 should be larger than the width of the ring seam 4 so as to be capable of completely shielding the ring seam 4, when the pressure equalizing pipe ring is installed, the outer edge part of the slurry stopping rubber ring plate 5 is fixed on the outer end surface of the pressure equalizing pipe ring 3 through a rubber plate clamping nail 6, the outer edge part of the slurry stopping rubber ring plate 5 should be located on the outer side of the ring seam 4, while the inner edge part of the slurry stopping rubber ring plate 5 is not fixed, and is in a freely openable state, namely, in a non-grouting state, the slurry stopping rubber ring plate 5 is attached on the outer end surface of the pressure equalizing pipe ring 3 so as to shield the ring seam 4; when the slurry feeding equipment pumps and grouting into the cavity of the pressure equalizing pipe ring 3 through each slurry feeding pipe 2, the inner edge of the slurry stopping rubber ring plate 5 is opened under the pressure action of slurry, and the slurry is injected into a gap formed between the outer boundary of the shield shell 1 and the outer boundary of the shield tunnel, so that synchronous grouting is realized. It should be noted that, through selecting the different thickness of the slurry stop rubber annular plate 5 to control its different opening pressures, so that the slurry can fully accumulate in the pressure equalizing pipe ring 3 and reach the specified pressure and then grouting outwards, thereby achieving the purpose of pressure equalizing grouting.
Example 2: as shown in fig. 7 and 8, this embodiment specifically relates to a synchronous grouting device for shield tunnel construction, where, based on the synchronous grouting device in embodiment 1, a circle of magnets 7 are further fixedly disposed on the inner edge of the grout stop rubber ring plate 5, and of course, a plurality of magnets 7 may be disposed at intervals along the inner edge of the grout stop rubber ring plate 5, and since the grout stop rubber ring plate 3 is made of metal material, the grout stop rubber ring plate 5 may be adsorbed on the outer end surface of the grout stop ring 3 under the action of the magnets 7, so as to further raise the opening pressure of the circumferential seam 4 on the grout stop rubber ring 3; that is, in the non-slip state, the grout stop rubber ring plate 5 may be attached to the outer end surface of the pressure equalizing pipe ring 3 by the adsorption of the magnet 7, and in the slip state, when the pressure in the pressure equalizing pipe ring 3 reaches the opening pressure, the grout breaks the magnetic attraction between the grout stop rubber ring plate 5 and the pressure equalizing pipe ring 3 and grouting is performed outward.
Claims (6)
1. The synchronous grouting device for shield tunnel construction is characterized by comprising a pressure equalizing pipe ring and at least four slurry supply pipes, wherein the pressure equalizing pipe ring is fixed on the tail end face of a shield shell, the slurry supply pipes are uniformly distributed at intervals at the tail end in the shield shell and are longitudinally arranged, one end of each slurry supply pipe is communicated with the pressure equalizing pipe ring, the other end of each slurry supply pipe is communicated with the slurry supply device, a circular seam is formed in the outer end face of the pressure equalizing pipe ring, and an openable sealing plate is arranged on the circular seam;
the pressure equalizing pipe ring is welded and fixed on the tail end face of the shield shell, and a through hole is formed in the inner end face of the pressure equalizing pipe ring at a position corresponding to the slurry supply pipe so as to be communicated with the slurry supply pipe;
the slurry stopping rubber ring plate is covered on the circumferential seam, and the outer edge part of the slurry stopping rubber ring plate is fixed on the outer end surface of the pressure equalizing pipe ring through a rubber plate clamping nail.
2. The synchronous grouting device for shield tunnel construction according to claim 1, wherein magnets are fixed on the inner edge of the slurry-stopping rubber ring plate, so that the inner edge of the slurry-stopping rubber ring plate is adsorbed on the outer end face of the pressure equalizing pipe ring.
3. The synchronous grouting device for shield tunnel construction according to claim 2, wherein the magnets are distributed on the inner edge of the grouting-stopping rubber annular plate at intervals along the circumferential direction.
4. The synchronous grouting device for shield tunnel construction according to claim 2, wherein the magnet is a ring magnet arranged on the inner edge of the slurry-stopping rubber ring plate.
5. The synchronous grouting device for shield tunnel construction according to claim 1, wherein the number of the slurry supply pipes arranged in the shield shell is six.
6. The synchronous grouting device for shield tunnel construction according to claim 1, wherein the longitudinal section of the pressure equalizing pipe ring is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042042.0A CN110608042B (en) | 2019-10-30 | 2019-10-30 | Synchronous grouting device for shield tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042042.0A CN110608042B (en) | 2019-10-30 | 2019-10-30 | Synchronous grouting device for shield tunnel construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608042A CN110608042A (en) | 2019-12-24 |
| CN110608042B true CN110608042B (en) | 2024-03-19 |
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ID=68895527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911042042.0A Active CN110608042B (en) | 2019-10-30 | 2019-10-30 | Synchronous grouting device for shield tunnel construction |
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| Country | Link |
|---|---|
| CN (1) | CN110608042B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279612B (en) * | 2022-03-08 | 2022-05-10 | 华东交通大学 | System and method for testing frictional resistance of jacking pipe |
| CN115012994B (en) * | 2022-06-10 | 2023-03-31 | 福建中天交通工程技术服务有限公司 | Shield synchronous double-liquid grouting process |
| CN115637991B (en) * | 2022-12-26 | 2023-03-28 | 中南大学 | Shield type TBM tunnel wall back grouting equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672186A (en) * | 2009-07-28 | 2010-03-17 | 中铁隧道股份有限公司 | Method and device for synchronously grouting shield tunnel pipe sheet |
| CN102661155A (en) * | 2012-05-18 | 2012-09-12 | 武汉船用机械有限责任公司 | Shield machine synchronous grouting pipeline system and shield machine with same |
| CN103821539A (en) * | 2013-10-15 | 2014-05-28 | 中铁工程装备集团有限公司 | Shield tunneling machine shield tail synchronous embedded-type double-liquid grouting device |
| CN204783025U (en) * | 2015-06-19 | 2015-11-18 | 中铁二十局集团西安工程机械有限公司 | Shield constructs mounting structure of quick -witted slip casting pipe |
| CN105114084A (en) * | 2015-08-28 | 2015-12-02 | 重庆市腾瀚工贸有限公司 | Tail shield of shield tunneling machine |
| CN209277900U (en) * | 2018-12-06 | 2019-08-20 | 成都鑫都建设工程有限公司 | A kind of blowing device of shield tunnel construction shield machine |
| CN210768777U (en) * | 2019-10-30 | 2020-06-16 | 华东交通大学 | Synchronous grouting device for shield tunnel construction |
-
2019
- 2019-10-30 CN CN201911042042.0A patent/CN110608042B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672186A (en) * | 2009-07-28 | 2010-03-17 | 中铁隧道股份有限公司 | Method and device for synchronously grouting shield tunnel pipe sheet |
| CN102661155A (en) * | 2012-05-18 | 2012-09-12 | 武汉船用机械有限责任公司 | Shield machine synchronous grouting pipeline system and shield machine with same |
| CN103821539A (en) * | 2013-10-15 | 2014-05-28 | 中铁工程装备集团有限公司 | Shield tunneling machine shield tail synchronous embedded-type double-liquid grouting device |
| CN204783025U (en) * | 2015-06-19 | 2015-11-18 | 中铁二十局集团西安工程机械有限公司 | Shield constructs mounting structure of quick -witted slip casting pipe |
| CN105114084A (en) * | 2015-08-28 | 2015-12-02 | 重庆市腾瀚工贸有限公司 | Tail shield of shield tunneling machine |
| CN209277900U (en) * | 2018-12-06 | 2019-08-20 | 成都鑫都建设工程有限公司 | A kind of blowing device of shield tunnel construction shield machine |
| CN210768777U (en) * | 2019-10-30 | 2020-06-16 | 华东交通大学 | Synchronous grouting device for shield tunnel construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110608042A (en) | 2019-12-24 |
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