CN112523778B - Pre-buried connecting sleeve of track traffic section of jurisdiction - Google Patents
Pre-buried connecting sleeve of track traffic section of jurisdiction Download PDFInfo
- Publication number
- CN112523778B CN112523778B CN202011392956.2A CN202011392956A CN112523778B CN 112523778 B CN112523778 B CN 112523778B CN 202011392956 A CN202011392956 A CN 202011392956A CN 112523778 B CN112523778 B CN 112523778B
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- sleeve
- main part
- inboard
- duct piece
- sealing
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- 239000012528 membrane Substances 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000465 moulding 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
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a pre-buried connecting sleeve of a rail transit duct piece, relates to the technical field of tunnel construction engineering, and solves the problems that the position of the sleeve is inconvenient to adjust according to the thickness of the duct piece when the conventional duct piece is pre-buried, the sleeve is easy to incline in the casting and tamping process of concrete, the product quality is affected, and the like. The utility model provides a pre-buried connecting sleeve of track traffic section of jurisdiction, includes the template main part, the up end fixed mounting of template main part has the separation membrane, the inboard of separation membrane is provided with the altitude mixture control reference column, the inboard of altitude mixture control reference column upper end is provided with the location connecting hole, the connection locking post is installed to the inboard of location connecting hole, sealed adapter sleeve is installed in the outside of altitude mixture control reference column upper end. According to the invention, through positioning and depth adjustment of the sleeve, the use of segments with different thicknesses can be satisfied, and the structure is stable in the casting process, so that the influence of the entry of concrete on the use is avoided.
Description
Technical Field
The invention relates to the technical field of tunnel construction engineering, in particular to a track traffic duct piece embedded connecting sleeve.
Background
Along with the rapid development of social economy, more cities are pulled over to start to construct subway tunnels, duct piece structural supports are generally adopted in construction of urban subway shield tunnel construction engineering, duct pieces are generally formed by concrete pouring, and pre-buried sleeves are arranged during concrete pouring, so that the post-anchoring workload of lining duct pieces of an interval tunnel during later installation equipment is reduced, damage and destruction to the lining duct pieces are reduced, the construction efficiency is improved, the working environment in the tunnel is improved, and the strength and durability of the duct pieces are ensured.
However, the existing duct piece is inconvenient to adjust the sleeve position according to the thickness of the duct piece when the connecting sleeve is pre-buried, and the inclination of the sleeve is easily caused in the casting and tamping process of concrete, so that the product quality is affected; therefore, the existing requirements are not met, and a pre-buried connecting sleeve of the rail transit duct piece is provided.
Disclosure of Invention
The invention aims to provide a connecting sleeve for embedding a track traffic duct piece, which solves the problems that the prior duct piece provided in the background art is inconvenient to adjust the position of the sleeve according to the thickness of the duct piece when the connecting sleeve is embedded, and the inclination of the sleeve is easy to cause in the casting and tamping process of concrete so as to influence the quality of products and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a pre-buried connecting sleeve of track traffic section of jurisdiction, includes the template main part, the up end fixed mounting of template main part has the separation membrane, the inboard of separation membrane is provided with the altitude mixture control reference column, the inboard of altitude mixture control reference column upper end is provided with the location connecting hole, the inboard of location connecting hole is installed and is connected the locking post, sealed adapter sleeve is installed in the outside of altitude mixture control reference column upper end, sealed adapter sleeve's outside is provided with two seal connection rings, one of them seal connection ring's outside is installed the sleeve main part, the outside fixed mounting of sleeve main part bottom has the anticreep ring, two location connecting blocks are evenly installed to the up end of anticreep ring, the inboard fixed mounting in sleeve main part middle part has horizontal reinforcing bar installation sleeve pipe, the inboard in horizontal reinforcing bar installation sleeve pipe middle part is provided with wear-resisting sleeve, the inboard of sleeve main part upper end is provided with tip positioning groove, the outside of sleeve main part upper end is provided with the scale mark.
Preferably, a depth limiting frame is fixedly arranged on the inner side of the sleeve main body below the end part positioning groove, and a hexagonal positioning hole is formed in the inner side of the middle of the depth limiting frame.
Preferably, the outside of template main part is provided with arc section of jurisdiction support frame, the template main part passes through screw connection with arc section of jurisdiction support frame and fixes.
Preferably, the upper end face of the template main body is provided with a placing groove, the separation membrane is arranged on the inner side of the placing groove, the separation membrane is connected with the template main body through hot pressing, and the upper end face of the separation membrane is provided with a corrosion-resistant coating.
Preferably, the bottom of the height-adjusting positioning column penetrates through the separating membrane to extend to the inner side of the template main body, the bottom of the height-adjusting positioning column is fixedly connected with the template main body through a screw, and the bottom of the connecting locking column penetrates through the upper end of the sealing connecting sleeve and is connected with the height-adjusting positioning column through threads.
Preferably, the sealing connecting sleeve is connected with the sleeve main body through two sealing connecting rings, sealing grooves are formed in the outer side of the sealing connecting sleeve and the inner side of the bottom end of the sleeve main body, and the sealing connecting rings are arranged on the inner side of the sealing grooves.
Preferably, the anti-drop ring is welded and fixed with the bottom end of the sleeve body, a positioning groove is formed in the upper end face of the anti-drop ring, and the positioning connecting block is arranged on the inner side of the positioning groove.
Preferably, both ends of the transverse steel bar installation sleeve are welded and fixed with the sleeve body, the inner side of the transverse steel bar installation sleeve is provided with a steel bar installation hole, and the wear-resistant sleeve is welded and fixed at the inner side of the steel bar installation hole.
Preferably, the sealing connecting sleeve, the connecting locking column and the height adjusting positioning column are all made of hard plastic, and the height adjusting positioning column is connected with the sealing connecting sleeve through the connecting locking column.
Preferably, the depth limiting frame is welded and fixed with the upper end of the sleeve body, and an alloy coating is arranged on the outer surface of the upper end of the sleeve body.
Compared with the prior art, the invention has the beneficial effects that:
1. the bottom end of the height-adjusting positioning column penetrates through the separating membrane and is connected and fixed with the template main body through the screw, so that the sealing connecting sleeve is conveniently positioned and connected through the height-adjusting positioning column, the whole body can be conveniently kept stable in the concrete pouring and tamping process, the whole body and the duct piece can be conveniently kept stable after pouring and tamping forming through the anti-falling ring, and the falling of the external connecting rod piece can be avoided when the external connecting rod piece is connected;
2. according to the invention, the wear-resistant sleeve is welded on the inner side of the transverse steel bar installation sleeve, so that the abrasion of the steel bar on the inner wall of the transverse steel bar installation sleeve during use can be avoided through the wear-resistant sleeve, the depth of connection of the external rod piece is conveniently limited through the depth limiting frame, the use is convenient, and the scale marks are arranged on the outer side of the upper end of the sleeve body, so that the concrete pouring depth can be displayed through the scale marks, and the concrete can be prevented from entering the inner side of the sleeve body through the upper end of the sleeve body, and the integral use is prevented from being influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the entirety of the present invention;
FIG. 3 is a top view of the entirety of the present invention;
FIG. 4 is a schematic cross-sectional view of the whole structure of the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of a height-adjusting positioning column according to the present invention;
fig. 6 is a schematic view of a partial structure of the positioning connection block of the present invention.
In the figure: 1. a template body; 2. a separation membrane; 3. anti-slip ring; 4. a sleeve body; 5. an end positioning groove; 6. installing a sleeve on the transverse reinforcing steel bar; 7. scale marks; 8. a depth limiting frame; 9. hexagonal positioning holes; 10. wear-resistant sleeve; 11. positioning a connecting block; 12. sealing the connecting sleeve; 13. connecting a locking column; 14. height adjusting positioning columns; 15. sealing the connecting ring; 16. positioning the connecting hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention provides: the utility model provides a pre-buried connecting sleeve of track traffic segment, including template main part 1, the up end fixed mounting of template main part 1 has separating diaphragm 2, the up end of separating diaphragm 2 is provided with corrosion-resistant coating, be convenient for separate concrete and template main part 1 through separating diaphragm 2, and then can be convenient for break away from the operation after the shaping of pipe piece, the inboard of separating diaphragm 2 is provided with high regulation reference column 14, fix a position through high regulation reference column 14 is whole, be convenient for guarantee that whole can keep stable in carrying out the concrete pouring and tamping process, high regulation reference column 14 upper end inboard is provided with locating connection hole 16, connecting locking post 13 is installed to the inboard of locating connection hole 16, sealing adapter sleeve 12 is installed in the outside of high regulation reference column 14 upper end, the outside of sealed adapter sleeve 12 is provided with two seal connection rings 15, sleeve main part 4 is installed in the outside of one of them seal connection ring 15, the outside fixed mounting of sleeve main part 4 bottom has anticreep ring 3, two location connecting blocks 11 are evenly installed to the up end of anticreep ring 3, the inboard fixed mounting at sleeve main part 4 middle part has horizontal reinforcing bar installation sleeve 6, the inboard at horizontal reinforcing bar installation sleeve 6 middle part is provided with wear-resisting sleeve 10, the inboard of sleeve main part 4 upper end is provided with tip positioning groove 5, the outside of sleeve main part 4 upper end is provided with scale mark 7, wholly through carrying out location and degree of depth regulation to the sleeve, can satisfy the segment use of different thickness, and pour in-process stable in structure, avoid the entering of concrete to influence the use.
Further, the depth limiting frame 8 is fixedly arranged on the inner side of the sleeve main body 4 below the end part positioning groove 5, a hexagonal positioning hole 9 is formed in the inner side of the middle of the depth limiting frame 8, and the depth of the connection of the external rod piece is conveniently limited through the depth limiting frame 8, so that the device is convenient to use.
Further, the outside of template main part 1 is provided with arc section of jurisdiction support frame, and template main part 1 passes through the screw connection with arc section of jurisdiction support frame fixedly, is convenient for carry out fixed stay to template main part 1, and then is convenient for pour of concrete.
Further, the up end of template main part 1 is provided with the standing groove, and separation membrane 2 sets up the inboard at the standing groove, and separation membrane 2 passes through hot pressing with template main part 1 to be connected, and the up end of separation membrane 2 is provided with corrosion-resistant coating, is convenient for separate concrete and template main part 1 through separation membrane 2, and then can be convenient for break away from the operation after the pipe sheet shaping.
Further, the bottom of the height-adjusting positioning column 14 penetrates through the separating membrane 2 to extend to the inner side of the template main body 1, the bottom of the height-adjusting positioning column 14 is fixedly connected with the template main body 1 through a screw, the bottom of the connecting locking column 13 penetrates through the upper end of the sealing connecting sleeve 12 and is connected with the height-adjusting positioning column 14 through threads, and the whole concrete casting and tamping process can be kept stable conveniently.
Further, the sealing connecting sleeve 12 is connected with the sleeve main body 4 through two sealing connecting rings 15, sealing grooves are formed in the outer side of the sealing connecting sleeve 12 and the inner side of the bottom end of the sleeve main body 4, and the sealing connecting rings 15 are arranged on the inner side of the sealing grooves, so that concrete is effectively prevented from penetrating into the inner side of the sleeve main body 4.
Further, the bottom welded fastening of anticreep ring 3 and sleeve main part 4, the up end of anticreep ring 3 is provided with the constant head tank, and location connecting block 11 sets up the inboard at the constant head tank, can keep whole and stable of section of jurisdiction after pouring into a mould shaping through anticreep ring 3, and then can avoid droing when being connected to the outer pole piece.
Further, both ends of the transverse reinforcement installation sleeve 6 are welded fixedly with the sleeve body 4, the inner side of the transverse reinforcement installation sleeve 6 is provided with a reinforcement installation hole, the wear-resistant sleeve 10 is welded fixedly at the inner side of the reinforcement installation hole, and abrasion of the inner wall of the transverse reinforcement installation sleeve 6 caused by the use of the reinforcement can be avoided through the wear-resistant sleeve 10.
Further, the sealing connecting sleeve 12, the connecting locking column 13 and the height adjusting positioning column 14 are made of hard plastics, and the height adjusting positioning column 14 is connected with the sealing connecting sleeve 12 through the connecting locking column 13, so that the sealing connecting sleeve 12, the connecting locking column 13 and the height adjusting positioning column 14 can be conveniently removed after the duct piece is formed.
Further, the upper end welded fastening of degree of depth spacing 8 and sleeve main part 4, the surface of sleeve main part 4 upper end is provided with the alloy coating, effectively improves the life when sleeve main part 4 exposes.
Working principle: when in use, the functions of all parts are checked to be intact, the bottom end of the height adjusting positioning column 14 penetrates through the separating membrane 2 and is connected and fixed with the template main body 1 through the screw, the height adjusting positioning column 14 and the sealing connecting sleeve 12 are connected and fixed through the connecting locking column 13, the positioning connection of the sealing connecting sleeve 12 is facilitated through the height adjusting positioning column 14, the sealing connecting sleeve 12 and the sleeve main body 4 are connected through the two sealing connecting rings 15, the whole body can be kept stable in the concrete pouring and tamping process, the sealing connecting rings 15 can seal the inner side of the bottom end of the sleeve main body 4, the concrete is effectively prevented from penetrating into the inner side of the sleeve main body 4, the separating membrane 2 is connected with the template main body 1 through hot pressing, the upper end face of the separating membrane 2 is provided with a corrosion-resistant coating, the separating membrane 2 is convenient for separating the concrete from the template main body 1, the pipe piece can be conveniently separated after being molded, the pipe piece is convenient to use, the anti-falling ring 3 is welded and fixed at the bottom end of the sleeve body 4, the upper end surface of the anti-falling ring 3 is provided with two positioning connecting blocks 11, the anti-falling ring 3 is convenient for keeping the stability of the whole pipe piece and the pipe piece after casting and tamping molding, and further the pipe piece can be prevented from falling off when being connected with an external connecting rod piece, the inner side of the middle part of the sleeve body 4 is provided with a transverse reinforcing steel bar installation sleeve 6, so that the transversely mounted steel bars can be guided by the transverse steel bar mounting sleeve 6, and the wear-resistant sleeve 10 is welded on the inner side of the transverse steel bar mounting sleeve 6, so that the wear of the steel bars on the inner wall of the transverse steel bar mounting sleeve 6 during use can be avoided by the wear-resistant sleeve 10, the inner wall of the upper end of the sleeve body 4 is provided with threads, the upper ends of the threads are terminated to the end positioning grooves 5, make be convenient for connect external member through the screw thread, the tip of external member of being convenient for through tip constant head tank 5 is pegged graft with the upper end of sleeve main part 4 and is fixed a position, and degree of depth spacing 8 and sleeve main part 4 welded fastening, be convenient for inject the degree of depth that external member is connected through degree of depth spacing 8, facilitate the use, be provided with scale mark 7 in the outside of sleeve main part 4 upper end for can show the degree of depth that the concrete was pour through scale mark 7, and then can avoid the concrete to get into the inboard of sleeve main part 4 through the upper end of sleeve main part 4, influence holistic use.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a pre-buried connecting sleeve of track traffic section of jurisdiction, includes template main part (1), its characterized in that: the utility model discloses a wear-resisting sleeve, including template main part (1), sealing connection sleeve (12) are installed in the outside of high regulation reference column (14), the inboard of separating membrane (2) is provided with high regulation reference column (14), the inboard of high regulation reference column (14) upper end is provided with location connecting hole (16), connection locking post (13) are installed to the inboard of location connecting hole (16), sealing connection sleeve (12) are installed in the outside of high regulation reference column (14) upper end, sleeve main part (4) are installed in the outside of sealing connection sleeve (12), sleeve main part (4) are installed in the outside of sealing connection ring (15), the outside fixed mounting of sleeve main part (4) bottom has anticreep ring (3), two location connecting blocks (11) are evenly installed to the up end of anticreep ring (3), the inboard fixed mounting at sleeve main part (4) middle part has horizontal reinforcing bar installation sleeve (6), the inboard at horizontal reinforcing bar installation sleeve (6) middle part is provided with wear-resisting sleeve (10), the inboard of sleeve main part (4) upper end is provided with end location recess (5), the outside of sleeve main part (4) is provided with scale mark (7).
2. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the inner side of the sleeve main body (4) below the end part positioning groove (5) is fixedly provided with a depth limiting frame (8), and the inner side of the middle part of the depth limiting frame (8) is provided with a hexagonal positioning hole (9).
3. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the outside of template main part (1) is provided with arc section of jurisdiction support frame, template main part (1) passes through the screw connection with arc section of jurisdiction support frame and fixes.
4. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the upper end face of the template main body (1) is provided with a placing groove, the separation membrane (2) is arranged on the inner side of the placing groove, the separation membrane (2) is connected with the template main body (1) through hot pressing, and the upper end face of the separation membrane (2) is provided with a corrosion-resistant coating.
5. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the bottom of high regulation reference column (14) runs through separation membrane (2) and extends to the inboard of template main part (1), the bottom of high regulation reference column (14) passes through screw connection with template main part (1) and fixes, the upper end of sealed adapter sleeve (12) is run through to the bottom of connecting locking post (13), the bottom of connecting locking post (13) is connected with high regulation reference column (14) through the screw thread.
6. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the sealing connecting sleeve (12) is connected with the sleeve main body (4) through two sealing connecting rings (15), sealing grooves are formed in the outer side of the sealing connecting sleeve (12) and the inner side of the bottom end of the sleeve main body (4), and the sealing connecting rings (15) are arranged on the inner side of the sealing grooves.
7. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the anti-drop ring (3) is welded and fixed with the bottom end of the sleeve body (4), a positioning groove is formed in the upper end face of the anti-drop ring (3), and the positioning connecting block (11) is arranged on the inner side of the positioning groove.
8. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: both ends and sleeve main part (4) of horizontal reinforcing bar installation sleeve pipe (6) all welded fastening, the inboard of horizontal reinforcing bar installation sleeve pipe (6) is provided with the reinforcing bar mounting hole, wear-resisting sleeve pipe (10) welded fastening is in the inboard of reinforcing bar mounting hole.
9. The pre-buried connecting sleeve of rail transit duct piece according to claim 1, wherein: the sealing connecting sleeve (12), the connecting locking column (13) and the height adjusting positioning column (14) are made of hard plastic, and the height adjusting positioning column (14) is connected with the sealing connecting sleeve (12) through the connecting locking column (13).
10. The pre-buried connecting sleeve of rail transit duct piece according to claim 2, wherein: the depth limiting frame (8) is welded and fixed with the upper end of the sleeve main body (4), and an alloy coating is arranged on the outer surface of the upper end of the sleeve main body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392956.2A CN112523778B (en) | 2020-12-02 | 2020-12-02 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392956.2A CN112523778B (en) | 2020-12-02 | 2020-12-02 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112523778A CN112523778A (en) | 2021-03-19 |
| CN112523778B true CN112523778B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011392956.2A Active CN112523778B (en) | 2020-12-02 | 2020-12-02 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
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| CN (1) | CN112523778B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301569A (en) * | 2018-04-08 | 2018-07-20 | 山东天盾矿用设备有限公司 | A kind of shroud member and its pre-buried and release method |
| CN108678780A (en) * | 2018-06-12 | 2018-10-19 | 山东安泰克工程材料有限公司 | A kind of service sleeve and the plug-in conduit based on the service sleeve |
| EP3722058A1 (en) * | 2019-04-07 | 2020-10-14 | Herrenknecht Aktiengesellschaft | Production system and method for producing a concrete segment of a tunnel excavation system |
| CN210713237U (en) * | 2019-07-12 | 2020-06-09 | 湖南德立铁路桥工程材料有限公司 | Embedded sleeve combination |
| CN210217748U (en) * | 2019-07-18 | 2020-03-31 | 粤水电轨道交通建设有限公司 | Shield segment pre-buried sleeve structure for preventing concrete from being wrapped |
| CN210714713U (en) * | 2019-09-12 | 2020-06-09 | 维机轨道交通科技（镇江）有限公司 | Reducing embedded sleeve for shield tunnel segment |
| CN111350521A (en) * | 2020-03-09 | 2020-06-30 | 上海孚士德建筑科技有限公司 | Pre-buried sleeve for shield interval |
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2020
- 2020-12-02 CN CN202011392956.2A patent/CN112523778B/en active Active
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| CN112523778A (en) | 2021-03-19 |
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