CN111022080A - Connection structure of track beam and shield tunnel, construction method of connection structure and shield tunnel - Google Patents
Connection structure of track beam and shield tunnel, construction method of connection structure and shield tunnel Download PDFInfo
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- CN111022080A CN111022080A CN201911420978.2A CN201911420978A CN111022080A CN 111022080 A CN111022080 A CN 111022080A CN 201911420978 A CN201911420978 A CN 201911420978A CN 111022080 A CN111022080 A CN 111022080A
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- 230000002787 reinforcement Effects 0.000 claims abstract description 78
- 239000004567 concrete Substances 0.000 claims abstract description 60
- 238000003466 welding Methods 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 2
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Classifications
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- 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
- E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
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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)
- Lining And Supports For Tunnels (AREA)
Abstract
The embodiment of the application provides a connection structure of a track beam and a shield tunnel, which comprises a steel pipe sheet, a base and a support, wherein the steel pipe sheet is used for forming a lining ring of the shield tunnel; the base comprises a steel reinforcement cage and a concrete layer, the steel reinforcement cage is welded with the steel pipe sheet, and the concrete layer is formed by pouring concrete on the steel reinforcement cage; one end of the support is connected with the base, and the other end of the support is detachably connected with the track beam. Because the support is detachably connected with the track beam, the position of the track beam can be conveniently adjusted according to the linear change of the shield tunnel according to the on-site construction requirement, and the track beam is also convenient to maintain and replace. The embodiment of the application also provides a construction method of the connection structure of the track beam and the shield tunnel, wherein the construction method of the connection structure of the track beam and the shield tunnel is the construction method of the connection structure of the track beam and the shield tunnel, and the shield tunnel comprises the connection structure of the track beam and the shield tunnel.
Description
Technical Field
The application relates to the field of straddle type monorail engineering, in particular to a connection structure of a track beam and a shield tunnel, a construction method of the connection structure and the shield tunnel.
Background
The straddle type monorail is a rail traffic system in which a vehicle body runs on a rail beam by adopting rubber tires. The shield tunnel is constructed by using a shield machine, controlling the excavation surface and surrounding rocks not to collapse and destabilize, tunneling the tunnel, discharging slag, assembling duct pieces in the machine to form a lining, implementing grouting after the wall and not disturbing the surrounding rocks. When a straddle type monorail is arranged in the shield tunnel, the duct piece is a prefabricated reinforced concrete duct piece, and the track beam and the duct piece are integrally poured according to the existing connecting method, so that the track beam is inconvenient to overhaul and replace.
Disclosure of Invention
In view of this, the embodiments of the present application are expected to provide a connection structure of a track beam and a shield tunnel, a construction method thereof, and a shield tunnel, which solve the technical problem that an integral structure is formed by pouring the track beam and a duct piece, and the track beam is inconvenient to overhaul and replace, and in order to solve the technical problem, the technical scheme of the embodiments of the present application is implemented as follows:
an aspect of the embodiment of the present application provides a connection structure of a track beam and a shield tunnel, including:
the steel pipe sheet is used for forming a lining ring of the shield tunnel;
the base comprises a steel reinforcement cage and a concrete layer, the steel reinforcement cage is welded with the steel pipe sheet, and the concrete layer is formed by pouring concrete on the steel reinforcement cage; and
the one end of support with the base is connected, the other end of support with the detachable connection of track roof beam.
Further, the steel pipe sheet includes:
the back plate is abutted against the surrounding rock of the shield tunnel and is in an arc shape;
the end plate with the backplate encloses to establish and forms the court track roof beam open-ended hexahedron structure, the main muscle of steel reinforcement cage runs through the opening with the backplate welding.
Further, the steel pipe sheet includes:
and the wing plate is connected with one end, close to the track beam, of the end plate.
Furthermore, the wing plate comprises a longitudinal wing plate and a circumferential wing plate, wherein the longitudinal wing plate is arranged in the longitudinal direction of the shield tunnel, the circumferential wing plate is arranged in the circumferential direction of the shield tunnel, and the longitudinal wing plate and the circumferential wing plate form a grid structure.
Further, the steel pipe piece comprises a web plate, one end of the web plate is connected with the wing plate, and the other end of the web plate is connected with the back plate.
Further, the steel pipe sheet includes a filling layer formed by filling the steel pipe sheet with concrete.
On the other hand, the shield tunnel provided by the embodiment of the application comprises the connecting structure, the capping block pipe piece, the abutting block pipe piece and the standard block pipe piece, wherein the abutting block pipe piece, the capping block pipe piece, the standard block pipe piece and the steel pipe piece are assembled to form the lining ring.
Further, the concrete layer is formed by casting or prefabricating on the reinforcement cage in situ.
Further, the shield tunnel comprises a ditch extending along the longitudinal direction of the shield tunnel, and the end face of the base connected with the support is higher than the end face of the ditch.
Furthermore, the two adjacent steel pipe sheets in the longitudinal direction of the shield tunnel are spliced by adopting a through seam.
The embodiment of the application further provides a construction method of the connection structure of the track beam and the shield tunnel, which comprises the following steps:
splicing the steel pipe sheets at a set position of a lining ring for forming the shield tunnel;
welding a reinforcement cage of the base with the steel pipe sheet;
connecting one end of the support with the base;
pouring concrete on the reinforcement cage to form a concrete layer of the base;
and the other end of the support is detachably connected with the track beam.
The application provides a connection structure of track roof beam and shield tunnel, the steel reinforcement cage and the steel-pipe piece welding of base to realize base and shield tunnel's effective connection. When in construction, only the reinforcement cage and the steel pipe sheet need to be welded, the construction is simple, and the manufacturing cost is low. Because the support is detachably connected with the track beam, the position of the track beam can be conveniently adjusted according to the linear change of the shield tunnel according to the on-site construction requirement, and the track beam is also convenient to maintain and replace. The embodiment of the application also provides a construction method of the connection structure of the track beam and the shield tunnel, wherein the construction method of the connection structure of the track beam and the shield tunnel is the construction method of the connection structure of the track beam and the shield tunnel, and the shield tunnel comprises the connection structure of the track beam and the shield tunnel, so that the beneficial effects of the connection structure of the track beam and the shield tunnel are the same.
Drawings
Fig. 1 is a schematic structural diagram of a shield tunnel according to an embodiment of the present application;
fig. 2 is a schematic view of a connection structure of a track beam and a steel pipe sheet of the shield tunnel in fig. 1;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic top view illustrating the connection between a base and a steel pipe sheet according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a construction method of a connection structure of a track beam and a shield tunnel according to an embodiment of the present application.
Description of the reference numerals
A lining ring 1000; a track beam 2000; a connecting structure 100; a steel pipe sheet 10; a grouting hole 10 a; a back plate 11; an end plate 12; a wing 13; a longitudinal wing 131; a circumferential wing plate 132; a web 14; a filling layer 15; a base 20; a reinforcement cage 21; a concrete layer 22; a support 30; an anchor bolt 40; abutting block segment 200; a capping block segment 300; a modular segment 400; a gutter 500.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. In the description of the present application, the orientation or positional relationship is based on the state of normal use of the track beam and the shield tunnel, the "longitudinal direction" is the direction in which the shield tunnel extends, and the "circumferential direction" is the circumferential direction of the shield tunnel, it being understood that these orientation terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 4, in one aspect, the present embodiment provides a connection structure between a track beam and a shield tunnel, including a steel pipe 10, a base 20, and a support 30. The steel pipe segment 10 is used to form a lining ring 1000 of a shield tunnel. The foundation 20 comprises a reinforcement cage 21 and a concrete layer 22. The reinforcement cage 21 is welded to the steel pipe piece 10. The concrete layer 22 is formed by pouring concrete on the reinforcement cage 21. One end of the support 30 is connected to the base 20, and the other end of the support 30 is detachably connected to the rail beam 2000.
The reinforcement cage 21 is welded with the steel pipe sheet 10 to realize the effective connection of the base 20 and the shield tunnel. During construction, the reinforcement cage 21 and the steel pipe sheet 10 are only needed to be welded, so that the construction is simple, and the manufacturing cost is low. The track beam 2000 is detachably connected with the support 30, so that the position of the track beam 2000 can be conveniently adjusted according to the linear change of the shield tunnel, and the track beam 2000 can be conveniently maintained and replaced. The size of the base 20, the contact area of the base and the steel pipe piece 10 and other parameters can be reasonably designed according to the traveling load, so that the local concentrated stress of the steel pipe piece 10 is avoided, the force generated by the bicycle load is diffused to enable the steel pipe piece 10 to be reasonably stressed, and the structural stability of the steel pipe piece 10 is kept.
Specifically, the reinforcement cage 21 and the steel pipe sheet 10 may be prefabricated, that is, the reinforcement cage 21 and the steel pipe sheet 10 may be prefabricated on line. Therefore, the construction efficiency is convenient to improve, and the construction time is saved.
It can be understood that when concrete is poured on the reinforcement cage 21 to form the concrete layer 22, a base formwork is required to be disposed on the periphery of the reinforcement cage 21, and then concrete is poured to form the concrete layer 22. Specifically, the end face of the concrete layer 22 connected with the support 30 may be smoothed or provided with 1% to 4% of cross slope. And removing the base formwork after the concrete layer 22 reaches the stripping strength to form the base 20. The end face of the concrete layer 22 connected with the support 30 is provided with a 1% -4% cross slope, so that the liquid volume is prevented from remaining on the end face of the concrete layer 22 connected with the support 30. It should be noted that the cross slope refers to a slope in a direction intersecting with the longitudinal direction of the shield tunnel.
Specifically, the support 30 is a cast steel support.
In one embodiment, referring to fig. 2 and 3, the steel pipe sheet 10 includes a back plate 11 and an end plate 12. The back plate 11 abuts against surrounding rocks of the shield tunnel. The back plate 11 is circular arc shaped. The end plates 12 and the back plate 11 enclose a hexahedral structure opened toward the rail beam 2000. The main reinforcement through opening of the reinforcement cage 21 is welded to the back plate 11. With the structure, the base 20 and the steel pipe sheet 10 are connected more stably.
It can be understood that, since the steel pipe sheet 10 is used to form a lining ring of the shield tunnel and the back plate 11 is abutted against the surrounding rock of the shield tunnel, the arc-shaped back plate 11 protrudes toward the surrounding rock, and the radian of the arc-shaped back plate 11 is matched with the lining ring.
In one embodiment, referring to fig. 2, the steel pipe sheet 10 includes a wing plate 13. The wing 13 is connected to the end of the end plate 12 adjacent the rail beam 2000. The structural strength of the steel pipe piece 10 is reinforced by the wing plate 13, and the structural stability of the steel pipe piece 10 is maintained.
In order to further reinforce the structural strength of the steel pipe piece 10. In one embodiment, referring to fig. 4, the wing plates 13 include longitudinal wing plates 131 arranged in the longitudinal direction of the shield tunnel and circumferential wing plates 132 arranged in the circumferential direction of the shield tunnel. The longitudinal wing plates 131 and the circumferential wing plates 132 form a lattice-like structure.
In one embodiment, referring to fig. 3, the steel pipe sheet 10 includes a web 14. One end of web 14 is connected to wing 13. The other end of the web 14 is connected to the back plate 11. Such a structure facilitates further enhancement of the structural strength of the steel pipe piece 10.
In one embodiment, referring to fig. 4, the webs 14 comprise longitudinal webs disposed longitudinally along the shield tunnel. One end of the longitudinal web is connected to the longitudinal wing 131. The other end of the longitudinal web connects to the back plate 11.
In another embodiment, the web 14 comprises a circumferential web (not shown) disposed circumferentially along the shield tunnel. One end of the annular web is connected to the annular wing plate 132. The other end of the circumferential web is connected with the back plate 11.
In one embodiment, referring to fig. 2 and 3, the steel pipe sheet 10 comprises a filler layer 15. The filling layer 15 is formed by filling the steel pipe piece 10 with concrete.
In one embodiment, referring to fig. 3, the reinforcement cage 21 includes a reinforcement cage and a reinforcement rib surrounding the reinforcement cage. Specifically, the steel reinforcement framework comprises top steel reinforcements and main reinforcements connected with the top steel reinforcements. The reinforcing bars may include distribution bars, stirrups, tie bars and construction bars.
Can weld main muscle and steel pipe sheet 10, it is concrete, main muscle run through the opening and the backplate welding, is connected top reinforcing bar and main muscle again in order to form framework of steel reinforcement, encloses on framework of steel reinforcement and establishes the strengthening rib to form the steel reinforcement cage.
The filling layer 15 may be formed by welding the steel reinforcement cage 21 and the steel pipe sheet 10 on line, pouring concrete on the steel reinforcement cage 21 and the steel pipe sheet 10, pouring concrete on the steel reinforcement cage 21 to form a concrete layer 22, and pouring concrete in the steel pipe sheet 10 to form the filling layer 15. And then the base 20 and the steel pipe piece 10 are arranged on the shield tunnel construction site. Or welding the reinforcement cage 21 with the steel pipe sheet 10 in the shield tunnel construction site, then pouring concrete on the reinforcement cage 21 and the steel pipe sheet 10, pouring concrete on the reinforcement cage 21 to form a concrete layer 22, and pouring concrete on the steel pipe sheet 10 to form a filling layer 15.
The concrete in the embodiment of the application can be ordinary concrete and fiber concrete, and the fiber concrete refers to a composite material consisting of fibers and a cement base material. A cementitious binder such as set cement, mortar or concrete. The fiber can be metal fiber, inorganic material fiber, and organic fiber. Illustratively, the fibers may be one or more of asbestos, steel fibers, glass fibers, polypropylene fibers, carbon fibers, vegetable fibers, or high-elastic modulus synthetic fibers.
In an embodiment, referring to fig. 3 and 4, a grouting hole 10a is formed at a geometric center of the steel pipe sheet 10, and the grouting hole 10a is used for grouting and filling a gap between the steel pipe sheet 10 and surrounding rock. The grout holes 10a may also be used as hoisting holes.
Referring to fig. 1 and 2, another aspect of the present invention provides a shield tunnel, which includes the connection structure 100, the adjacent block segment 200, the capping block segment 300, and the standard block segment 400 in any of the above embodiments. The adjacent block pipe piece 200, the capping block pipe piece 300, the standard block pipe piece 400 and the steel pipe piece 10 are assembled to form a lining ring 1000.
It will be appreciated that two adjacent segment segments 200 are positioned on either side of the capped segment 300. The standard block segment 400 can be one or more, and the number of the standard block segments 400 is different according to the diameter of the shield tunnel. In other words, the number of modular segments 400 selected varies depending on the circumference of lining ring 1000. The assembly among the steel pipe piece 10, the adjacent block piece 200, the capping block piece 300 and the standard piece 400 can be through joint assembly or staggered joint assembly. Typically, the assembly between the adjoining block segment 200, the capped block segment 300, the standard segment 400 and the steel pipe segment 10 must be finished with the capped block segment 300.
The steel pipe segment 10 may be in accordance with the size of the standard block segment 400. Illustratively, the shield tunnel in the embodiment of the present application includes two adjacent segment segments 200, one capping segment 300, one steel pipe segment 10, and two standard segment segments 400. The steel pipe segment 10 corresponds to the standard block segment 400 in size. Two adjacent block segments 200, one capping block segment 300, one steel pipe segment 10 and two standard block segments 400 are assembled to form a lining ring 1000. The steel pipe segment 10 is located at the bottom of the track beam 2000, one end of the steel pipe segment 10 abuts against the adjacent block segment 200, and the other end of the steel pipe segment 10 abuts against the standard block segment 400.
In one embodiment, the concrete layer 22 is formed by casting in place on the reinforcement cage 21. Specifically, the top steel bars of the steel reinforcement cage 21 and the main steel bars in the steel pipe sheet 10 are welded at a construction site, and concrete is poured on the steel reinforcement cage 21 to form the concrete layer 22. Thus, the main body of the reinforcement cage 21 and the steel pipe pieces 10 are conveniently transported.
In one embodiment, the concrete layer 22 is formed by prefabrication on the reinforcement cage 21. That is, the reinforcement cage 21 and the steel pipe 10 are welded in advance on line, and concrete is poured on the reinforcement cage 21 to form the concrete layer 22. And transporting the prefabricated base 20 and the steel pipe sheet 10 to a construction site. Therefore, the construction period can be saved, and the construction efficiency is improved.
In one embodiment, referring to fig. 3, the shield tunnel includes a gutter 500 extending longitudinally along the shield tunnel. The end surface of the base 20 connected to the stand 30 is higher than the end surface where the gutter 500 is located. In other words, the height difference between the end surface of the base 20 connected to the stand 30 and the end surface where the gutter 500 is located is H, where H > 0. This arrangement promotes the flow of liquid from the base 20 into the gutter 500 as quickly as possible.
In one embodiment, referring to fig. 2 and 3, two adjacent steel pipe sheets 10 along the longitudinal direction of the shield tunnel are assembled by using through seams. In the prior art, the lining ring adopts different duct piece different assembling modes to cause the problem that the track beam 2000 is difficult to accurately position on the duct piece. In the embodiment of the present application, the steel pipe segment 10 is used to form a lining ring 1000 of a shield tunnel. Can unify prefabricated steel pipe piece 10 down on line, assemble prefabricated steel pipe piece 10 through leading to the seam, the base 20 of being convenient for and the installation of steel pipe piece 10 location to solve the problem that the section of jurisdiction and track roof beam 2000 are difficult to the location among the prior art, simplify the work progress.
Referring to fig. 5, an embodiment of the present application further provides a construction method of a connection structure between a track beam and a shield tunnel, including:
s01, assembling the steel pipe sheets at the set positions of lining rings for forming the shield tunnel;
s02, welding a reinforcement cage of the base with the steel pipe sheet;
s03, connecting one end of the support with the base;
s04, pouring concrete on the reinforcement cage to form a concrete layer of the base;
and S05, detachably connecting the other end of the support with the track beam.
The following is a description of specific implementation steps of the construction method, and it should be noted that these detailed implementations may be chosen according to different requirements of construction.
And S01, assembling the steel pipe sheets at the set position of the lining ring for forming the shield tunnel.
The steel pipe pieces 10 are assembled at set positions of lining rings for forming a shield tunnel, and the set positions are positions of the steel pipe pieces 10 set according to the positions of the track beams 2000.
And S02, welding the reinforcement cage of the base with the steel pipe sheet.
Specifically, according to the size of the base 20, the main reinforcement of the base 20 is welded to the inner side of the back plate 11 of the steel pipe 10, and the top reinforcement of the base 20 is connected to the main reinforcement to form the reinforcement cage 21. In one embodiment, the reinforcement cage 21 includes a reinforcement cage and a reinforcement rib surrounding the reinforcement cage. Specifically, the steel reinforcement framework comprises top steel reinforcements and main reinforcements connected with the top steel reinforcements. The reinforcing bars may include distribution bars, stirrups, tie bars and construction bars.
And S03, connecting one end of the support with the base.
Specifically, the support 30 and the reinforcement cage 21 may be connected by an anchor 40. A mounting hole may be formed in the support 30, and one end of the anchor bolt 40 may be fixedly connected to the reinforcement cage 21 through the mounting hole, for example, by welding.
And S04, pouring concrete on the reinforcement cage to form a concrete layer of the base.
Concrete is poured in situ on the reinforcement cage 21 to form a concrete layer 22. Therefore, the connection between the support 30 and the base 20 is more stable, and the structural stability of the connection structure of the track beam and the shield tunnel provided by the embodiment of the application is greatly improved.
And S05, detachably connecting the other end of the support with the track beam.
The other end of the support 30 is detachably connected to the track beam 2000, so that the track beam 2000 can be adjusted according to the linear change of the shield tunnel. Specifically, the support 30 may be a cast steel support.
S02, S01, and S03, S04, and S05 may be performed in this order. Namely, the steel reinforcement cage of the base can be welded with the steel pipe sheet on line, then the steel pipe sheet is spliced at a set position of a lining ring for forming the shield tunnel, one end of the support is connected with the base, concrete is poured on the steel reinforcement cage to form a concrete layer of the base, and the other end of the support is detachably connected with the track beam.
The method may further include performing S02, then S04, and then S01, S03, and S05 in sequence, that is, welding a steel reinforcement cage of the foundation with the steel pipe sheet, pouring concrete on the steel reinforcement cage to form a concrete layer of the foundation, splicing the steel pipe sheet at a set position of a lining ring for forming the shield tunnel, connecting one end of the support with the foundation, and detachably connecting the other end of the support with the track beam.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (11)
1. The utility model provides a connection structure of track roof beam and shield tunnel which characterized in that includes:
the steel pipe sheet is used for forming a lining ring of the shield tunnel;
the base comprises a steel reinforcement cage and a concrete layer, the steel reinforcement cage is welded with the steel pipe sheet, and the concrete layer is formed by pouring concrete on the steel reinforcement cage; and
the one end of support with the base is connected, the other end of support with the detachable connection of track roof beam.
2. The connection structure according to claim 1, wherein the steel pipe sheet comprises:
the back plate is abutted against the surrounding rock of the shield tunnel and is in an arc shape;
the end plate with the backplate encloses to establish and forms the court track roof beam open-ended hexahedron structure, the main muscle of steel reinforcement cage runs through the opening with the backplate welding.
3. The connection structure according to claim 2, wherein the steel pipe sheet comprises:
and the wing plate is connected with one end, close to the track beam, of the end plate.
4. The connection structure according to claim 3, wherein the wing plates include a longitudinal wing plate disposed in a longitudinal direction of the shield tunnel and a circumferential wing plate disposed in a circumferential direction of the shield tunnel, the longitudinal wing plate and the circumferential wing plate forming a lattice structure.
5. The connection structure according to claim 3, wherein the steel pipe piece includes a web, one end of the web is connected to the wing plate, and the other end of the web is connected to the back plate.
6. The connection structure according to any one of claims 1 to 5, wherein the steel pipe sheet includes a filler layer formed by filling concrete in the steel pipe sheet.
7. A shield tunnel is characterized by comprising the connecting structure, the capping block duct piece, the adjacent block duct piece and the standard block duct piece according to any one of claims 1 to 6, wherein the adjacent block duct piece, the capping block duct piece, the standard block duct piece and the steel pipe piece are assembled to form the lining ring.
8. The shield tunnel of claim 7, wherein the concrete layer is cast-in-place or pre-cast on the reinforcement cage.
9. The shield tunnel of claim 7, wherein the shield tunnel includes a gutter extending longitudinally along the shield tunnel, and wherein the end surface of the pedestal that is connected to the pedestal is higher than the end surface at which the gutter is located.
10. The shield tunnel according to claim 7, wherein two adjacent steel pipe sheets in the longitudinal direction of the shield tunnel are spliced by a through seam.
11. A construction method of a connection structure of a track beam and a shield tunnel is characterized by comprising the following steps:
splicing the steel pipe sheets at a set position of a lining ring for forming the shield tunnel;
welding a reinforcement cage of the base with the steel pipe sheet;
connecting one end of the support with the base;
pouring concrete on the reinforcement cage to form a concrete layer of the base;
and the other end of the support is detachably connected with the track beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911420978.2A CN111022080A (en) | 2019-12-31 | 2019-12-31 | Connection structure of track beam and shield tunnel, construction method of connection structure and shield tunnel |
Applications Claiming Priority (1)
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| CN112281619A (en) * | 2020-09-23 | 2021-01-29 | 中铁工程设计咨询集团有限公司 | Straddle type monorail shield tunnel inner track beam bridge and construction method thereof |
| CN112502735A (en) * | 2020-08-24 | 2021-03-16 | 中铁工程设计咨询集团有限公司 | Shield device integrated with track base |
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