CN209742907U - Shield tunnel segment structure and shield tunnel lining - Google Patents
Shield tunnel segment structure and shield tunnel lining Download PDFInfo
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- CN209742907U CN209742907U CN201920387692.8U CN201920387692U CN209742907U CN 209742907 U CN209742907 U CN 209742907U CN 201920387692 U CN201920387692 U CN 201920387692U CN 209742907 U CN209742907 U CN 209742907U
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- grouting
- shield tunnel
- slip casting
- pipe
- connecting pipe
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Abstract
The utility model discloses a shield tunnel section of jurisdiction structure and shield tunnel lining. The shield tunnel segment structure comprises a segment body and at least one group of grouting mechanisms arranged in the segment body, wherein each group of grouting mechanisms comprises a plurality of grouting pipes which are distributed at intervals from front to back, the upper ends of the grouting pipes extend to the outer surface of the segment body, check valves are fixed at the upper ends of the grouting pipes, the lower ends of the grouting pipes are communicated through first connecting pipes which are distributed horizontally, second connecting pipes are communicated on the first connecting pipes, and the lower ends of the second connecting pipes extend to the inner surface of the segment body; the method has the advantages of reducing the stratum loss and reducing the influence of construction on the surrounding environment.
Description
Technical Field
The utility model relates to a tunnel engineering field especially involves a shield tunnel section of jurisdiction structure and shield tunnel lining.
Background
The shield method is a fully mechanical construction method in the construction of the underground excavation method, which is a mechanical construction method that a shield machine is pushed in the ground, surrounding rocks around are supported by a shield shell and pipe pieces to prevent collapse into a tunnel, meanwhile, a cutting device is used for excavating soil in front of an excavation surface, the soil is transported out of the tunnel by an unearthing machine, is pressed and jacked at the rear part by a jack, and precast concrete pipe pieces are assembled to form a tunnel structure, and the shield method is widely applied to the construction of urban traffic tunnels.
The stratum loss in the tunneling process of the shield tunneling machine is the largest influence factor of surface subsidence, and the grouting is an effective measure for reducing the stratum loss. However, in some shield tunnel projects, due to reasons such as space, a shield machine is not provided with a synchronous grouting pipeline, grouting is carried out by virtue of grouting holes in a duct piece in construction, and the process can be implemented only after the duct piece is separated from a shield tail, so that the control effect on the influence of the surrounding environment is not ideal; on the other hand, when the secondary grouting is carried out by reserving grouting holes in the duct piece, only one grouting hole is formed in the traditional duct piece, grouting areas are concentrated, disturbance to a soil body is large, and the effect of controlling stratum deformation cannot be optimal.
Disclosure of Invention
An object of the utility model is to provide a shield tunnel section of jurisdiction structure, it can reduce the stratum loss, reduces the influence of construction to all ring edge borders.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a shield tunnel section of jurisdiction structure, includes the section of jurisdiction body, still including setting up this internal at least a set of slip casting mechanism of section of jurisdiction, every group slip casting mechanism include many front and back interval distribution's slip casting pipe, many the upper end of slip casting pipe all extend to the surface of section of jurisdiction body, and many the upper end of slip casting pipe all be fixed with the check valve, many the lower extreme of slip casting pipe pass through horizontal distribution's first connecting pipe intercommunication, first connecting pipe on the intercommunication have the second connecting pipe, the lower extreme of second connecting pipe extend to the internal surface of section of jurisdiction body.
The number of the grouting pipes is two, and the second connecting pipe is located at the midpoint of the connecting line of the two grouting pipes. Therefore, the time for flowing to each grouting pipe during grouting is uniform, and accurate control is facilitated.
The shield tunnel segment structure further comprises a first grouting joint, and the first grouting joint is detachably arranged on the second connecting pipe. In this structure, slip casting equipment carries out the slip casting through first slip casting joint, and first slip casting joint sets up on the second connecting pipe with detachable mode, and the convenience is connected and is replaced first slip casting.
The side wall of the upper part of the first grouting joint is provided with a first grouting hole, and the upper part of the first grouting joint extends into the first connecting pipe. In this structure, the setting up of first injected hole makes things convenient for the thick liquid to flow out, and the thick liquid enters into first connecting tube after flowing out from first injected hole in, flows out behind the check valve afterwards.
The number of the grouting pipes is three, and the second connecting pipes are located right below the middle grouting pipe. In the structure, the three grouting pipes can achieve the purpose of uniform grouting, so that the grout is not gathered in a certain area, and the control of the surrounding environment is facilitated.
The shield tunnel segment structure further comprises two grouting joints, and the two grouting joints can be detachably arranged on the second connecting pipe. In this structure, two slip casting joints can be replaced to do benefit to the slip casting.
The two grouting joints are respectively a first grouting joint and a second grouting joint, a first grouting hole is formed in the side wall of the upper part of the first grouting joint, and a second grouting hole is formed in the upper surface of the second grouting joint; when the grouting pipe needs to perform grouting to the outer side or the inner side, the upper part of the first grouting joint extends into the first connecting pipe; when grouting is needed to the grouting hole in the middle, the upper part of the second grouting joint extends into the first connecting pipe. In this structure, first slip casting hole has been seted up on the lateral wall on first slip casting joint upper portion, when the slip casting pipe slip casting in the outside is gone to needs, first slip casting hole is towards this slip casting pipe, the influence to other slip casting pipes has been avoided, and when the slip casting pipe slip casting of need past centre, then replace first slip casting pipe for the second slip casting pipe, the second slip casting pipe that flows from the second slip casting joint grout that comes in directly from upper portion flows, enter into the slip casting pipe in the centre afterwards, avoid the slip casting pipe in the flow direction outside, just so guaranteed the independence at each slip casting pipe, do benefit to the construction.
The aperture of the first grouting hole and the aperture of the second grouting hole are both smaller than the inner diameter of the first connecting pipe. This has the advantage of allowing the slurry to flow completely into the first connecting pipe.
The ring width of section of jurisdiction body be 1200mm, the diameter of slip casting pipe be 50mm, adjacent the interval between the slip casting pipe be 450mm, and the outside the slip casting pipe with the distance of section of jurisdiction body outward flange be 150 mm.
Another object of the utility model is to provide a shield tunnel lining cutting, including a plurality of shield tunnel segment structures, it is a plurality of shield tunnel segment structure end to end in proper order, and adjacent shield tunnel segment structure pass through the bolt fastening. The method has the advantages that the method can simultaneously carry out grouting on a plurality of segment structures of the lining ring according to needs, is more targeted, and reduces the uneven influence of the first grouting and the later grouting.
compared with the prior art, the utility model has the advantages of: the arrangement of the plurality of grouting pipes which are distributed at intervals front and back is beneficial to uniformly diffusing the grout, avoiding the concentration of grouting areas and being more beneficial to controlling the surrounding geological environment; the arrangement of the check valve prevents the slurry from flowing back into the grouting pipe; the grouting pipes are communicated through the first connecting pipes, and the first connecting pipes are connected with the second connecting pipes, so that the grout entering from the second connecting pipes flows into the grouting pipes needing grouting after passing through the first connecting pipes, and the structure is simple and practical; the utility model discloses can reduce the stratum loss, reduce the influence of construction to all ring edge borders.
Drawings
Fig. 1 is a sectional view of a second embodiment of the present invention;
Fig. 2 is a schematic perspective view of a third embodiment of the present invention;
Fig. 3 is a schematic view of a third embodiment of the present invention in which a first grouting joint is located in a second connecting pipe;
Fig. 4 is a schematic view of a second grouting joint in a third embodiment of the present invention, which is located in a second connecting pipe;
Fig. 5 is a cross-sectional view of a first slip casting joint according to a third embodiment of the present invention;
fig. 6 is a cross-sectional view of a second slip casting joint according to a third embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a fourth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The first embodiment is as follows: as shown in the figure, a shield tunnel section of jurisdiction structure, including section of jurisdiction body 1, still including setting up at least a set of slip casting mechanism in section of jurisdiction body 1, every slip casting mechanism of group includes many front and back interval distribution's slip casting pipe 2, the upper end of many slip casting pipes 2 all extends to the surface of section of jurisdiction body 1, and the upper end of many slip casting pipes 2 all is fixed with check valve 3, the lower extreme of many slip casting pipes 2 passes through horizontal distribution's first connecting pipe 4 intercommunication, the intercommunication has second connecting pipe 5 on the first connecting pipe 4, the lower extreme of second connecting pipe 5 extends to the internal surface of section of jurisdiction body 1.
example two: as shown in the figure, a shield tunnel section of jurisdiction structure, including section of jurisdiction body 1, still including setting up at least a set of slip casting mechanism in section of jurisdiction body 1, every slip casting mechanism of group includes many front and back interval distribution's slip casting pipe 2, the upper end of many slip casting pipes 2 all extends to the surface of section of jurisdiction body 1, and the upper end of many slip casting pipes 2 all is fixed with check valve 3, the lower extreme of many slip casting pipes 2 passes through horizontal distribution's first connecting pipe 4 intercommunication, the intercommunication has second connecting pipe 5 on the first connecting pipe 4, the lower extreme of second connecting pipe 5 extends to the internal surface of section of jurisdiction body 1.
In this embodiment, there are two grouting pipes 2, and the second connection pipe 5 is located at the midpoint of the line connecting the two grouting pipes 2.
In this embodiment, the shield tunnel segment structure further includes a first grouting joint 6, and the first grouting joint 6 is detachably disposed on the second connecting pipe 5.
In this embodiment, the sidewall of the upper portion of the first grouting joint 6 is provided with a first grouting hole 61, and the upper portion of the first grouting joint 6 extends into the first connecting pipe 4.
example three: as shown in the figure, a shield tunnel section of jurisdiction structure, including section of jurisdiction body 1, still including setting up at least a set of slip casting mechanism in section of jurisdiction body 1, every slip casting mechanism of group includes many front and back interval distribution's slip casting pipe 2, the upper end of many slip casting pipes 2 all extends to the surface of section of jurisdiction body 1, and the upper end of many slip casting pipes 2 all is fixed with check valve 3, the lower extreme of many slip casting pipes 2 passes through horizontal distribution's first connecting pipe 4 intercommunication, the intercommunication has second connecting pipe 5 on the first connecting pipe 4, the lower extreme of second connecting pipe 5 extends to the internal surface of section of jurisdiction body 1.
In this embodiment, there are three grouting pipes 2, and the second connection pipe 5 is located right below the middle grouting pipe 2.
In this embodiment, shield tunnel segment structure still includes two slip casting joints, and two slip casting joints can set up on second connecting pipe 5 with detachable mode.
In this embodiment, the two grouting joints are a first grouting joint 6 and a second grouting joint 7, respectively, a first grouting hole 61 is formed in the side wall of the upper portion of the first grouting joint 6, and a second grouting hole 71 is formed in the upper surface of the second grouting joint 7; when grouting is required to the outer side or the inner side of the grouting pipe 2, the upper part of the first grouting joint 6 extends into the first connecting pipe 4; when grouting to the middle grouting hole is needed, the upper part of the second grouting joint 7 extends into the first connecting pipe 4.
In the present embodiment, the first and second grout holes 61 and 71 each have a hole diameter smaller than the inner diameter of the first connecting pipe 4.
In this embodiment, the ring width of section of jurisdiction body 1 is 1200mm, and the diameter of slip casting pipe 2 is 50mm, and the interval between adjacent slip casting pipe 2 is 450mm, and the distance of slip casting pipe 2 and section of jurisdiction body 1 outward flange in the outside is 150 mm.
in this embodiment, the inside wall of second connecting pipe 5 is provided with the internal thread, is provided with the external screw thread with internal thread matched with on the lateral wall that every slip casting connects.
During specific construction, when the segment body 1 is assembled and gradually separated from the shield tail, the three grouting pipes 2 are sequentially separated from the shield tail, a first grouting joint 6 is installed before the grouting pipe 2 on the inner side is separated from the shield tail, so that a first grouting hole 61 faces to the grouting pipe 2 on the inner side, and synchronous grouting is started after the grouting pipe 2 on the inner side is separated from the shield tail; when the middle grouting pipe 2 is about to be separated from the shield tail, replacing the first grouting joint 6 with a second grouting joint 7 to enable the second grouting hole 71 to face the middle grouting pipe 2, and then starting synchronous grouting after the middle grouting pipe 2 is separated from the shield tail; when the outer side grouting pipe is about to be separated from the shield tail, the second grouting joint 7 is replaced by the first grouting joint 6, the first grouting hole 61 faces the outer side grouting pipe 2, after the outer side grouting pipe 2 is separated from the shield tail, synchronous grouting is started, and grouting construction is finished finally.
Example four: the utility model provides a shield tunnel lining cutting, includes shield tunnel section of jurisdiction structure, a plurality of shield tunnel section of jurisdiction structures end to end in proper order, and adjacent shield tunnel section of jurisdiction structure passes through the bolt fastening.
Shield tunnel section of jurisdiction structure includes section of jurisdiction body 1, still including setting up at least a set of slip casting mechanism in section of jurisdiction body 1, every slip casting mechanism of group includes many back and forth interval distribution's slip casting pipe 2, many slip casting pipe 2's upper end all extends to section of jurisdiction body 1's surface, and many slip casting pipe 2's upper end all is fixed with check valve 3, many slip casting pipe 2's lower extreme passes through horizontal distribution's first connecting pipe 4 intercommunication, the intercommunication has second connecting pipe 5 on the first connecting pipe 4, the lower extreme of second connecting pipe 5 extends to section of jurisdiction body 1's internal surface.
Claims (10)
1. The utility model provides a shield tunnel section of jurisdiction structure, includes the section of jurisdiction body, its characterized in that: still be in including setting up this internal at least a set of slip casting mechanism of section of jurisdiction, every group slip casting mechanism include many front and back interval distribution's slip casting pipe, many the upper end of slip casting pipe all extend to the surface of section of jurisdiction body, and many the upper end of slip casting pipe all be fixed with the check valve, many the lower extreme of slip casting pipe first connecting pipe intercommunication through horizontal distribution, first connecting pipe on the intercommunication have the second connecting pipe, the lower extreme of second connecting pipe extend to the internal surface of section of jurisdiction body.
2. The shield tunnel segment structure of claim 1, wherein: the number of the grouting pipes is two, and the second connecting pipe is located at the midpoint of the connecting line of the two grouting pipes.
3. The shield tunnel segment structure of claim 2, wherein: the shield tunnel segment structure further comprises a first grouting joint, and the first grouting joint is detachably arranged on the second connecting pipe.
4. The shield tunnel segment structure of claim 3, wherein: the side wall of the upper part of the first grouting joint is provided with a first grouting hole, and the upper part of the first grouting joint extends into the first connecting pipe.
5. The shield tunnel segment structure of claim 1, wherein: the number of the grouting pipes is three, and the second connecting pipes are located right below the middle grouting pipe.
6. The shield tunnel segment structure of claim 5, wherein: the shield tunnel segment structure further comprises two grouting joints, and the two grouting joints can be detachably arranged on the second connecting pipe.
7. The shield tunnel segment structure of claim 6, wherein: the two grouting joints are respectively a first grouting joint and a second grouting joint, a first grouting hole is formed in the side wall of the upper part of the first grouting joint, and a second grouting hole is formed in the upper surface of the second grouting joint; when the grouting pipe needs to perform grouting to the outer side or the inner side, the upper part of the first grouting joint extends into the first connecting pipe; when grouting is needed to the grouting hole in the middle, the upper part of the second grouting joint extends into the first connecting pipe.
8. The shield tunnel segment structure of claim 7, wherein: the aperture of the first grouting hole and the aperture of the second grouting hole are both smaller than the inner diameter of the first connecting pipe.
9. the shield tunnel segment structure of claim 5, wherein: the ring width of section of jurisdiction body be 1200mm, the diameter of slip casting pipe be 50mm, adjacent the interval between the slip casting pipe be 450mm, and the outside the slip casting pipe with the distance of section of jurisdiction body outward flange be 150 mm.
10. A shield tunnel lining is characterized in that: the shield tunnel segment structure comprises a plurality of shield tunnel segment structures according to any one of claims 1 to 9, wherein the plurality of shield tunnel segment structures are sequentially connected end to end, and the adjacent shield tunnel segment structures are fixed through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387692.8U CN209742907U (en) | 2019-03-26 | 2019-03-26 | Shield tunnel segment structure and shield tunnel lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387692.8U CN209742907U (en) | 2019-03-26 | 2019-03-26 | Shield tunnel segment structure and shield tunnel lining |
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| CN209742907U true CN209742907U (en) | 2019-12-06 |
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| CN201920387692.8U Active CN209742907U (en) | 2019-03-26 | 2019-03-26 | Shield tunnel segment structure and shield tunnel lining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882194A (en) * | 2019-03-26 | 2019-06-14 | 宁波用躬科技有限公司 | A kind of shield tunnel chip architecture and shield tunnel liner |
| CN113217037A (en) * | 2021-06-25 | 2021-08-06 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
| CN109882194B (en) * | 2019-03-26 | 2024-05-14 | 宁波用躬科技有限公司 | Shield tunnel segment structure and shield tunnel lining |
-
2019
- 2019-03-26 CN CN201920387692.8U patent/CN209742907U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882194A (en) * | 2019-03-26 | 2019-06-14 | 宁波用躬科技有限公司 | A kind of shield tunnel chip architecture and shield tunnel liner |
| CN109882194B (en) * | 2019-03-26 | 2024-05-14 | 宁波用躬科技有限公司 | Shield tunnel segment structure and shield tunnel lining |
| CN113217037A (en) * | 2021-06-25 | 2021-08-06 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
| CN113217037B (en) * | 2021-06-25 | 2022-08-30 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
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