CN220150377U - Assembled platform plate structure for flexible tunnel - Google Patents
Assembled platform plate structure for flexible tunnel Download PDFInfo
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- CN220150377U CN220150377U CN202321420016.9U CN202321420016U CN220150377U CN 220150377 U CN220150377 U CN 220150377U CN 202321420016 U CN202321420016 U CN 202321420016U CN 220150377 U CN220150377 U CN 220150377U
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- 239000000565 sealant Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 22
- 238000013461 design Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 10
- 239000002344 surface layer Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000009415 formwork Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides an assembled platform plate structure for a flexible tunnel, which belongs to the technical field of track traffic design and construction, and comprises a plurality of independent unit areas longitudinally divided along the tunnel, wherein the span of each independent unit area is matched with the width of a multi-ring tunnel segment, deformation joints are arranged between adjacent independent unit areas, each independent unit area comprises a column foot connecting piece, a tunnel side wall supporting piece, a beam column member and a platform plate, the lower end of the beam column member is connected with the column foot connecting piece, the upper end of the beam column member is connected with the plurality of closely arranged platform plates, and the platform plate is connected with the tunnel side wall supporting piece. Each independent unit area is a rigid stressed unit, and deformation joints are arranged between adjacent independent unit areas so as to better adapt to the possible uneven settlement problem of a flexible tunnel; the station boards and the beam column members in the independent unit areas are prefabricated by factories, so that rapid construction can be realized, and the aim of saving construction period is fulfilled.
Description
Technical Field
The utility model belongs to the technical field of track traffic design and construction, and particularly relates to an assembled platform plate structure for a flexible tunnel.
Background
With the continuous development of urban rail transit design and construction technology, under the condition of extremely complex ground and surrounding environment conditions, a platform area and a track area of an urban rail transit underground station can pass through a pipe jacking tunnel or a large shield tunnel and the like to penetrate through important municipal building (construction) downwards to complete seamless communication of large mileage ends. Because the pipe-jacking tunnel and the large shield tunnel are connected along the longitudinal direction of the tunnel mainly through bolts, and are of a relatively flexible structure, compared with a reinforced concrete frame structure, the pipe-jacking tunnel or the large shield tunnel in the range of the station can possibly generate a certain amount of uneven settlement and other problems after urban rail transit construction is completed and during later operation and maintenance, and therefore, platform plates in the range of the pipe-jacking tunnel or the large shield tunnel in the station platform area need to be specially designed to adapt to the uneven settlement problem possibly generated by the flexible tunnel. In addition, modern engineering techniques have high requirements on environmental protection and construction period.
The traditional platform plate design and construction generally adopts the integral cast-in-situ technology, and is mainly completed through the steps of formwork supporting under the platform plate, steel reinforcement cage binding, cast-in-situ concrete, maintenance, formwork removal and the like. The traditional cast-in-place concrete technology can ensure construction quality, has better integrity, can set the structural dimension according to the actual engineering requirement, and does not need to set a fixed modulus; but the disadvantages are also more obvious: the procedures of site formwork support, concrete pouring, maintenance, formwork removal and the like are complicated, the construction period is long, pollution is easy to generate in the construction process, and the adaptability to the problem of uneven settlement deformation is poor. With the increasing maturity of the assembly type construction technology, at present, more cities in China adopt the assembly type platform plate technology in the track traffic design and construction, mainly adopt the prefabricated laminated slab and cast-in-place surface layer technology, compared with the traditional cast-in-place technology, the problems of environmental protection and long construction period are improved, but after the construction according to the technology is finished, the platform plate has better integrity and relatively weak capability of adapting to uneven settlement, and is mainly suitable for the framework structure with higher integral rigidity, such as the platform plate in the track traffic station of the integral framework structure.
The problems existing in the construction process of the platform plate in the range of the flexible tunnel are mainly as follows: 1. after the construction of the flexible tunnel of urban rail transit is finished and during the later operation and maintenance, a certain amount of uneven settlement can be generated in the tunnel structure, and if the rigidity of the platform plate structure in the area is large in comparison with the rigidity of the tunnel, structural damage such as cracks and the like can be generated under the effect of tunnel deformation. 2. Modern engineering technology has high requirements on environmental protection and construction period, and the traditional cast-in-situ technology has no advantages on environmental protection and construction period.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides an assembled platform plate structure for a flexible tunnel, which is divided into a plurality of independent unit areas along the longitudinal direction of the tunnel, wherein each independent unit area is a rigid stress unit, and deformation joints are arranged between adjacent independent unit areas so as to better adapt to the possible uneven settlement problem of the flexible tunnel; the station boards and the beam column members in the independent unit areas are prefabricated by factories, so that rapid construction can be realized, and the aim of saving construction period is fulfilled.
The technical scheme adopted by the utility model is as follows: the utility model provides an assembled platform plate structure for flexible tunnel, includes along the longitudinal partition's of tunnel a plurality of independent unit district, every independent unit district's span and the width phase-match of multiple ring tunnel section of jurisdiction, adjacent independent unit district sets up the movement joint, independent unit district includes column foot connecting piece, tunnel lateral wall support piece, beam column component and platform board, the lower extreme and the column foot connecting piece of beam column component are connected, the upper end and a plurality of closely arranged of beam column component the platform board is connected, the platform board is connected with tunnel lateral wall support piece.
Further, the cross section of the beam column member is pi-shaped, and a plurality of station boards are fixed on each beam column member.
Further, an embedded anchor bolt is arranged on the upper portion of the beam column member, and an embedded anchor bolt hole and an embedded anchor bolt groove corresponding to the embedded anchor bolt are arranged on the station plate.
Further, the station board and the tunnel side wall support are fixed through bolts.
Further, a column foot embedded part is arranged at the lower part of the beam column component, and the column foot embedded part and the column foot connecting part are fixed through bolts.
Further, the beam column member and the platform plate are prefabricated members.
Further, the top surface of the tunnel side wall support is on the same horizontal plane as the top surface of the beam column member.
Further, the span of each independent unit area is matched with the width of the tri-ring or tetra-ring tunnel pipe piece.
Further, the deformation joint is arranged between the platform plates, and the deformation joint is provided with sealant.
Further, a decoration surface layer is arranged on the station board.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the platform plate structure is longitudinally divided into a plurality of independent unit areas along the tunnel, each independent unit area is a rigid stress unit, and deformation joints are arranged between adjacent independent unit areas, so that the problem of uneven settlement possibly existing in a flexible tunnel is well adapted. And a deformation joint is arranged between platform plates in adjacent independent unit areas, and the positions of the deformation joints are sealed by sealant, so that the problem of uneven settlement can be well adapted. Each independent unit area comprises a plurality of platform boards, each platform board is prefabricated by adopting a separate component, and pre-buried anchor bolt holes connected with beam column components are reserved; the beam column component is a combined component of a prefabricated beam and a prefabricated column, adopts integrated prefabrication to form a pi-shaped structure, and reserves components such as anchor bolts, column feet and the like which are connected with the platform plate and the lower column foot connecting piece when the beam column component is prefabricated. The position of the end part of the platform plate, which is close to the side wall of the tunnel, is reliably connected with the side wall of the tunnel by adopting bolts and a supporting piece of the side wall of the tunnel so as to ensure the horizontal stability of the platform plate structure.
Drawings
FIG. 1 is a schematic illustration of an installation of an embodiment of the present utility model;
FIG. 2 is a schematic top view of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an embodiment of the present utility model;
FIG. 4 is a schematic view of a deformation joint according to an embodiment of the present utility model;
FIG. 5 is a schematic top view of a station board according to an embodiment of the present utility model;
FIG. 6 is a schematic top view of a beam column member according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a beam column member according to an embodiment of the present utility model;
fig. 8 is a schematic top view of a tunnel sidewall support according to an embodiment of the utility model.
In the figure: the device comprises a 1-column base connecting piece, a 2-tunnel side wall supporting piece, a 3-beam column component, a 4-station board, a 5-deformation joint, a 6-decoration surface layer, a 7-embedded anchor bolt hole and an 8-embedded anchor bolt groove.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model.
The embodiment of the utility model provides an assembled platform plate structure for a flexible tunnel, which comprises a plurality of independent unit areas longitudinally divided along the tunnel, wherein the span of each independent unit area is matched with the width of a tri-ring or tetra-ring tunnel segment, deformation joints 5 are arranged between adjacent independent unit areas, and the positions of the deformation joints 5 are embedded with sealant. The independent unit area comprises a column foot connector 1, a tunnel side wall support 2, a beam column member 3 and a platform plate 4. The cross section of the beam column member 3 is pi-shaped, a column foot embedded part is arranged at the lower part of the beam column member 3, the column foot embedded part is fixed with the column foot connecting piece 1 through bolts, and the column foot connecting piece 1 is embedded in a ballast backfill area. The upper portion of beam column component 3 sets up the pre-buried crab-bolt, be provided with on the platform board 4 with pre-buried anchor hole 7 and pre-buried crab-bolt recess 8 that the pre-buried crab-bolt corresponds, every be fixed with on the beam column component 3 a plurality of platform board 4. Each individual cell in this embodiment comprises two beam-column members 3 and three platform plates 4. The upper end of each beam column member 3 is fixedly connected with three tightly arranged platform plates 4. Each of the platform plates 4 is placed on and fixed to two of the beam-column members 3 and one of the tunnel side wall supports 2, respectively. The top surface of the tunnel side wall support 2 is on the same horizontal plane with the top surface of the beam column member 3. Through the pre-buried anchor bolt hole 7 that sets up on the platform board 4 and the reservation bolt hole that sets up on the tunnel lateral wall support piece 2, the platform board 4 adopts the bolt fastening with tunnel lateral wall support piece 2. The tunnel side wall supporting piece 2 is fixed on the tunnel side wall through an embedded bolt. The tunnel side wall support 2 is provided with reinforcing ribs. The beam column member 3 and the station board 4 are prefabricated members. The deformation joint 5 is arranged between the platform plates 4 adjacent to the independent unit areas. The platform plate 4 is provided with a decoration surface layer 6.
When the pile foundation structure is installed, the column foot connecting pieces 1 are pre-buried in the track bed backfill area, the tunnel side wall supporting pieces 2 are fixed on the tunnel side walls, and the tops of the tunnel side wall supporting pieces 2 are kept horizontal. The beam-column element 3 is then securely connected to the column foot connection 1. Then installing the platform boards 4 in blocks according to the sequence, wherein the platform boards 4 are reliably fixed with the beam column members 3 and the tunnel side wall supporting pieces 2; when the platform plate 4 is installed, the middle part and the rear edge are arranged according to the independent unit areas, the middle part is compact, deformation joints 5 are arranged between two sides and adjacent independent unit areas, and after the platform plate 4 is installed, sealant is adopted at the positions of the deformation joints 5 to perform caulking treatment. And finally, finishing surface layer 6 and other supporting facilities are applied.
The present utility model has been described in detail by way of examples, but the description is merely exemplary of the utility model and should not be construed as limiting the scope of the utility model. The scope of the utility model is defined by the claims. In the technical scheme of the utility model, or under the inspired by the technical scheme of the utility model, similar technical schemes are designed to achieve the technical effects, or equivalent changes and improvements to the application scope are still included in the protection scope of the patent coverage of the utility model.
Claims (10)
1. The utility model provides an assembled platform plate structure for flexible tunnel, its characterized in that includes a plurality of independent unit district that divide along the tunnel longitudinal direction, every independent unit district's span and the width phase-match of multiple ring tunnel section of jurisdiction, adjacent independent unit district sets up the movement joint, independent unit district includes column foot connecting piece, tunnel lateral wall support piece, beam column component and platform board, the lower extreme and the column foot connecting piece of beam column component are connected, the upper end and a plurality of closely arranged of beam column component the platform board is connected, the platform board is connected with tunnel lateral wall support piece.
2. A fabricated platform structure for a flexible tunnel according to claim 1, wherein said beam-column members are pi-shaped in cross section, a plurality of said platform plates being secured to each of said beam-column members.
3. The assembled platform structure for the flexible tunnel according to claim 2, wherein the upper portion of the beam column member is provided with an embedded anchor bolt, and the platform plate is provided with an embedded anchor bolt hole and an embedded anchor bolt groove corresponding to the embedded anchor bolt.
4. A fabricated platform structure for a flexible tunnel according to claim 3, wherein the platform plate is bolted to the tunnel sidewall support.
5. A fabricated platform structure for a flexible tunnel according to claim 2, wherein a toe embedment is provided at a lower portion of the beam-column member, the toe embedment being secured to the toe connector by bolts.
6. A fabricated platform structure for a flexible tunnel according to claim 1, wherein the beam-column members and platform are prefabricated.
7. A fabricated platform structure for a flexible tunnel according to claim 1, wherein the top surface of the tunnel sidewall support is on the same level as the top surface of the beam-column member.
8. A fabricated platform structure for a flexible tunnel according to claim 1, wherein the span of each of said individual cell areas matches the width of a tri-or tetra-ring tunnel segment.
9. A fabricated platform structure for a flexible tunnel according to claim 1, wherein said deformation joints are disposed between said platform plates, and wherein said deformation joints are provided with sealant.
10. A fabricated platform structure for a flexible tunnel according to claim 1, wherein the platform plate is provided with a finishing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321420016.9U CN220150377U (en) | 2023-06-06 | 2023-06-06 | Assembled platform plate structure for flexible tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321420016.9U CN220150377U (en) | 2023-06-06 | 2023-06-06 | Assembled platform plate structure for flexible tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220150377U true CN220150377U (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321420016.9U Active CN220150377U (en) | 2023-06-06 | 2023-06-06 | Assembled platform plate structure for flexible tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220150377U (en) |
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2023
- 2023-06-06 CN CN202321420016.9U patent/CN220150377U/en active Active
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