CN210134295U - Plate-type track system - Google Patents
Plate-type track system Download PDFInfo
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- CN210134295U CN210134295U CN201821995845.9U CN201821995845U CN210134295U CN 210134295 U CN210134295 U CN 210134295U CN 201821995845 U CN201821995845 U CN 201821995845U CN 210134295 U CN210134295 U CN 210134295U
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Abstract
The utility model provides a plate track system. The slab track system comprises: the track plate is prefabricated, at least one limiting hole is formed in the center of the track plate, and the diameter of the limiting hole is larger than 200 mm; at least one part of the base is positioned below the prefabricated track plate, and the base is provided with a limiting structure extending into the limiting hole; the isolation layer is arranged between the prefabricated track plate and the base; the steel rail and the fasteners are arranged above the prefabricated rail plate. The utility model provides an among the prior art rail system have the poor and on-the-spot inefficiency problem of track structure durability.
Description
Technical Field
The utility model relates to a rail transit engineering technical field particularly, relates to a plate track system.
Background
The traditional integral ballast bed track construction in China mainly adopts a mode of manually finely adjusting the track and pouring concrete in situ, and has the problems of slow construction progress, difficult control of concrete cast-in-place quality, high labor intensity of workers, bad operation environment and the like. The concrete ballast bed is easy to crack after the line is operated, and under the comprehensive actions of deformation of a main body structure, repeated vibration, erosion of water and the like, cracks of the concrete ballast bed are easy to develop into diseases, so that corrosion of reinforcing steel bars can be caused, the bearing capacity and durability of the structure are reduced, the attractiveness and the service life of the whole ballast bed are influenced, and the overhaul of the whole ballast bed indicates that the damage treatment difficulty of the concrete whole ballast bed is high and the maintenance cost is high. In addition, most of the track structures of the general sections of the main line adopt ballastless tracks, the general sections adopt short-sleeper type or long-sleeper embedded cast-in-place integral track beds, and the vibration reduction sections adopt vibration reduction type ballastless tracks such as trapezoidal sleeper type, vibration isolation cushion floating plate type, steel spring floating plate type and the like according to different requirements.
That is, the track system in the prior art has the problem that track structure durability is poor and site operation efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a plate track system to there is the poor and problem that site operation efficiency is low of track structure durability in the track system among the solution prior art.
In order to achieve the above object, according to an aspect of the present invention, there is provided a plate type rail system, including: the track plate is prefabricated, at least one limiting hole is formed in the center of the track plate, and the diameter of the limiting hole is larger than 200 mm; at least one part of the base is positioned below the prefabricated track plate, and the base is provided with a limiting structure extending into the limiting hole; the isolation layer is arranged between the prefabricated track plate and the base; the steel rail and the fasteners are arranged above the prefabricated rail plate.
Furthermore, the limiting holes are multiple and are arranged at intervals along the extending direction of the prefabricated track plate.
Further, the aperture of the limiting hole is gradually reduced from top to bottom.
Further, the isolation layer is a geotextile layer or a rubber layer.
Further, the isolation layer includes the elastic buffer layer, and the elastic buffer layer setting is on the pore wall in spacing hole to keep apart base and prefabricated track board and play the cushioning effect.
Further, the isolation layer includes a plurality of strip damping pad and a plurality of strip cystosepiment of horizontal arrangement, and the both sides of strip damping pad are provided with strip cystosepiment respectively and assemble integrative, and the both extend along the extending direction of prefabricated track board.
Furthermore, one side of the plate-type track system facing the isolation layer is provided with a positioning groove, and one part of the strip-shaped vibration damping pad is embedded into the positioning groove.
Furthermore, the top end of the limiting structure protrudes out of the limiting hole or is flush with the top opening of the limiting hole.
Furthermore, the prefabricated track slab is one or more of a reinforced concrete track slab, a pre-tensioned pre-stressed track slab or a post-tensioned pre-stressed track slab; and/or arranging drainage terminals or grounding terminals on the four corner surfaces or the side surfaces of the prefabricated track plate; and/or setting a base mark for measuring the paving plate on the prefabricated track plate.
Furthermore, the cross sections of the limiting holes are one or more of circular, polygonal and elliptical.
Use the technical scheme of the utility model, board-like track system includes prefabricated track board, base, isolation layer, rail and fastener, and wherein, the center of prefabricated track board has at least one spacing hole, and the diameter in spacing hole is greater than 200 millimeters, and at least some of base is located the below of prefabricated track board, and the base has the limit structure who stretches into spacing downthehole, is provided with the isolation layer between prefabricated track board and the base, and rail and fastener setting are in the top of prefabricated track board.
Because base and limit structure are poured by self-compaction concrete or resin mortar and form, preferably, adopt self-compaction concrete to pour into. Therefore, the limit hole is formed in the center of the prefabricated track plate, so that the base and the limit structure can be conveniently poured, the prefabricated track plate is reliably fixed before pouring, floating and transverse moving are prevented, and the base formed after pouring is prevented from deviating from the prefabricated track plate. And during pouring, the limiting hole at the lower position is selected for pouring. The base and the limiting structure are formed by one-time pouring, so that the labor intensity of workers is reduced, and the construction progress of the track can be accelerated. The limiting structure is embedded into the limiting hole, the limiting structure and the limiting hole are matched with each other to restrain transverse and longitudinal displacements of the prefabricated track plate and the base, and the stability of the steel rail on the prefabricated track plate is improved. The steel rail is fixed on the rail plate by the fasteners, the steel rail is guided to be accurately adjusted according to the measurement result, and the left and right positions of the steel rail are adjusted by the fasteners so as to meet the laying precision of the rail.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic longitudinal section of an alternative embodiment of the plate track system of the present invention;
FIG. 2 shows a schematic cross-sectional view of the plate track system of FIG. 1;
figure 3 shows a schematic plan view of the prefabricated track slab of figure 1;
figure 4 shows a schematic cross-sectional view of the prefabricated track slab of figure 1;
FIG. 5 shows a schematic cross-sectional view of the plate track system of FIG. 1;
fig. 6 shows a schematic cross-sectional view of a slab track system according to another alternative embodiment of the invention.
Wherein the figures include the following reference numerals:
10. prefabricating a track slab; 11. a limiting hole; 20. a base; 21. a limiting structure; 30. an isolation layer; 31. an elastic buffer layer; 32. strip-shaped vibration damping pads; 33. a strip-shaped foam board; 40. a steel rail; 50. a fastener; 60. and (6) positioning a groove.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
In order to solve the problem that track system has track structure durability poor and site operation inefficiency among the prior art, the utility model provides a plate track system.
As shown in fig. 1 to 6, the slab track system includes a prefabricated track slab 10, a base 20, an isolation layer 30, a steel rail 40 and a fastener 50, wherein the prefabricated track slab 10 has at least one limiting hole 11 in the center thereof, the diameter of the limiting hole 11 is greater than 200 mm, at least a portion of the base 20 is located below the prefabricated track slab 10, the base 20 has a limiting structure 21 extending into the limiting hole 11, the isolation layer 30 is disposed between the prefabricated track slab 10 and the base 20, and the steel rail 40 and the fastener 50 are disposed above the prefabricated track slab 10.
Since the base 20 and the position limiting structure 21 are formed by pouring self-compacting concrete or resin mortar, preferably, the pouring is performed by using self-compacting concrete. Therefore, the limit hole 11 is formed in the center of the prefabricated track plate 10, so that the base 20 and the limit structure 21 can be conveniently poured, the prefabricated track plate 10 is reliably fixed before pouring, floating and transverse movement are prevented, and the base 20 formed after pouring is prevented from deviating from the prefabricated track plate 10. The limiting hole 11 at the lower position is selected for pouring during pouring. The base 20 and the limiting structure 21 are formed by one-time pouring, so that the labor intensity of workers is reduced, and the construction progress of the track can be accelerated. The limiting structure 21 is embedded into the limiting hole 11, and the limiting structure 21 and the limiting hole 11 are matched with each other to restrain the transverse and longitudinal displacements of the prefabricated track plate 10 and the base 20, so that the stability of the steel rail 40 on the prefabricated track plate 10 is increased. The steel rail 40 is fixed on the prefabricated rail plate 10 by the fasteners, the steel rail 40 is guided to be finely adjusted according to the measurement result, and the left and right positions of the steel rail 40 are adjusted by the fasteners 50 so as to meet the laying precision of the rail.
When the lower structure subsides greatly and needs to carry out ballast bed structure maintenance, loosen fastener 50 within a certain range, chive the part with limit structure 21 peripheral concrete, strut the template after jacking up prefabricated track board 10 to the design height, pour into the maintenance special material from spacing hole 11 department.
When the strip-shaped vibration damping pads 32 need to be replaced, the fasteners 50 are loosened within a certain range, the concrete around the limiting structure 21 is chiseled, the prefabricated track slab 10 is jacked up to a certain height, the strip-shaped vibration damping pads 32 are replaced from the side faces of the prefabricated track slab 10, and special maintenance materials are poured into the limiting holes 11 after the prefabricated track slab 10 is reset.
As shown in fig. 4, the plurality of limiting holes 11 are provided, and the plurality of limiting holes 11 are spaced apart from each other in the extending direction of the prefabricated track slab 10. The arrangement of the plurality of limiting holes 11 can enable the base 20 and the limiting structure 21 to be filled from a plurality of places, so that the area below the prefabricated track slab 10 is uniformly filled with filling materials, and the stability of the slab track system in the operation process is improved. In addition, the plurality of limiting holes 11 are matched with the plurality of limiting structures 21, so that a better limiting function can be achieved for the plate type track system. The number of the limiting holes 11 is designed mainly according to the length of the prefabricated track slab 10.
As shown in fig. 5, the hole diameter of the stopper hole 11 is gradually reduced from the top to the bottom. The limiting holes 11 are arranged in a shape that the aperture is gradually reduced from top to bottom, so that the upward floating displacement of the prefabricated track plate 10 can be effectively inhibited, and the prefabricated track plate 10 is convenient to demould during manufacturing.
As shown in fig. 2 and 3, the isolation layer 30 includes an elastic buffer layer 31, and the elastic buffer layer 31 is disposed on the hole wall of the limiting hole 11 to isolate the base 20 from the prefabricated track slab 10 and perform a buffering function. The elastic buffer layer 31 can effectively prevent a gap from being generated between the limiting hole 11 and the limiting structure 21 due to the effects of thermal expansion and cold contraction in the pouring process. And then the infiltration of regional ponding back infiltration prefabricated track board 10 near spacing hole 11 has been avoided effectively, also is convenient for operation stage maintenance simultaneously.
As shown in fig. 2 and 3, the isolation layer 30 includes a plurality of strip-shaped vibration damping pads 32 and a plurality of strip-shaped foam boards 33 which are arranged in a transverse direction, wherein the strip-shaped foam boards 33 are respectively disposed at both sides of the strip-shaped vibration damping pads 32 and assembled as a whole, and both extend in the extending direction of the prefabricated track slab 10. The strip-shaped vibration damping pad 32 is made of rubber or polyurethane foaming materials, and the strip-shaped vibration damping pad 32 can improve the vibration damping effect and reduce the investment cost of the vibration damping track under the same condition. The strip-shaped foam board 33 is made of pearl wool foam board or material with similar performance, and the rigidity of the strip-shaped foam board is far lower than that of the strip-shaped damping pad 32, so that the damping effect is prevented from being influenced.
In the embodiment shown in fig. 5, the side of the slab track system facing the isolation layer 30 has a positioning groove 60, and a portion of the strip-shaped vibration damping pad 32 is embedded in the positioning groove 60. The positioning groove 60 provides a positioning for the assembly of the strip-shaped vibration damping pad 32, and reduces the possibility of assembly dislocation of the strip-shaped vibration damping pad 32. In addition, a part of the strip-shaped vibration damping pad 32 is embedded in the positioning groove 60, so that the strip-shaped vibration damping pad 32 is prevented from falling off from the prefabricated track slab 10, and the strip-shaped vibration damping pad 32 is prevented from sliding in the operation stage. The strip-shaped damping pads 32 are bonded to the prefabricated track slab 10 at the factory. The strip-shaped vibration damping pad 32 is disposed in a positioning groove 60 formed in the lower surface of the prefabricated track slab 10, and the positioning groove 60 is formed in the direction of the rail. The locating slot 60 and the strip of damping pad 32 should have a good tolerance fit.
Specifically, the strip-shaped vibration damping pad 32, the strip-shaped foam plate 33 and the elastic buffer layer 31 are transported to a rail plate manufacturing factory for assembly after being produced and qualified in a factory. The strip-shaped vibration damping pad 32 is adhered to the positioning groove 60 at the bottom of the prefabricated track slab 10, the strip-shaped foam slab 33 is adhered to the outer area of the strip-shaped vibration damping pad 32 at the bottom of the slab, the elastic buffer layer 31 is adhered to the periphery of the limiting hole 11, the joint part is sealed, slurry infiltration during cast-in-place is avoided, and the vibration damping effect is prevented from being influenced.
In another embodiment shown in fig. 6, the structure of the isolation layer 30 is different from that of fig. 5. Specifically, the isolation layer 30 is a geotextile layer or a rubber layer. The isolation layer 30 is arranged to separate the base 20 from the prefabricated track slab 10, so that the phenomenon that the prefabricated track slab 10 is deformed due to the fact that the base 20 sinks to drive the prefabricated track slab 10 to sink is avoided, and in addition, maintenance after the lower foundation sinks is facilitated. Correspondingly, the positioning groove 60 is not formed in the plate-type track system any more, so that the manufacturing difficulty and the manufacturing cost of the plate-type track system are reduced.
As shown in fig. 2 and 3, the top end of the limiting structure 21 protrudes out of the limiting hole 11 or is flush with the top opening of the limiting hole 11. The phenomenon that water seeps into the bottom of the prefabricated track slab 10 after the water seeps into the limiting structure 21 is avoided.
Specifically, the prefabricated track slab 10 is one or more of a reinforced concrete track slab, a pre-tensioned pre-stressed track slab or a post-tensioned pre-stressed track slab; and/or arranging drainage terminals or grounding terminals on the four corner surfaces or the side surfaces of the prefabricated track plate 10; and/or a base mark for measuring the paving plate is arranged on the prefabricated track plate 10. Preferably, the open environment is preferably the prestressed track slab, and the tunnel is preferably the reinforced concrete track slab. Drainage terminals or grounding terminals are arranged on the surfaces or the side surfaces of four corners of the prefabricated track plate 10, so that the requirements of interfaces of different operation conditions of urban track traffic, high-speed railways and the like are met. The prefabricated track plate 10 is provided with a standard device for measuring the paving plate, so that different measuring modes can be conveniently adopted for paving the track.
And arranging the steel bars in the base 20 and the limiting structure 21 according to the on-site measurement paying-off mark. The assembled prefabricated track slab 10 is transported to a construction site, the prefabricated track slab 10 is laid roughly according to the slab layout design of a straight line section and a curve section, a CP III is used for controlling a measuring net or a base mark and a reference device on the prefabricated track slab 10 to finely adjust the position of each direction of the prefabricated track slab 10, after the position of the prefabricated track slab 10 is checked and confirmed, a tool is used for fixing the prefabricated track slab 10, the prefabricated track slab 10 is prevented from floating and transversely moving when self-compacting concrete is poured, and after the position of the track slab is checked and confirmed, the base 20 and the limiting structure 21 are poured with materials.
The line curve is realized superelevation on the base 20. I.e. the curve section is arranged on the poured self-compacting concrete layer.
Optionally, the hole cross-section of the plurality of limiting holes 11 is one or more of circular, polygonal and elliptical. Can be determined according to the actual use requirements and the processing difficulty of the limiting hole 11 and the limiting structure 21.
The utility model provides a plate-type rail system can lay on tunnel, ground and bridge.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
the structure is not unified with the ballastless track structure of a common section, and great inconvenience is brought to maintenance and repair in construction and operation stages. The prefabricated plate type track is obviously superior to a cast-in-place integral ballast bed in terms of construction quality of engineering entities, the whole life cycle cost of construction projects, later maintenance and repair convenience and the like, is convenient for maintenance of a ballast bed structure due to settlement of a lower structure, has obvious advantages in aspects of upgrading and reconstruction of an original vibration damping structure and the like of a subway along with changes of upper buildings and plans, and also accords with the development direction of green and safe construction of railway traffic construction projects advocated by the country. The main track components of the structure are prefabricated and assembled in a factory, the quality and the durability of the ballast bed are guaranteed, the defects that the construction progress of a cast-in-place integral ballast bed is slow, the cast-in-place quality of concrete is difficult to control, the labor intensity of field workers is high and the like are overcome, and the maintenance of the ballast bed structure is convenient to carry out when diseases such as settlement of a substructure occur. The arrangement mode of the strip-shaped vibration damping pads 32 is adopted, the cost of the vibration damping track is reduced, the track structure types of the vibration damping sections and the common sections can be unified, and the on-site construction and the later maintenance are convenient.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A plate track system, comprising:
the prefabricated track plate (10) is provided with at least one limiting hole (11) in the center, and the diameter of the limiting hole (11) is larger than 200 mm;
the base (20), at least one part of the base (20) is located below the prefabricated track slab (10), the base (20) is provided with a limiting structure (21) extending into the limiting hole (11), and the limiting structure (21) is formed by pouring self-compacting concrete or resin mortar;
the isolation layer (30) is arranged between the prefabricated track slab (10) and the base (20), the isolation layer (30) comprises an elastic buffer layer (31), and the elastic buffer layer (31) is arranged on the hole wall of the limiting hole (11) so as to isolate the base (20) from the prefabricated track slab (10) and play a role in buffering;
a steel rail (40) and a clip (50), the steel rail (40) and the clip (50) being disposed above the prefabricated rail plate (10).
2. The slab track system as claimed in claim 1, wherein the plurality of limiting holes (11) are provided, and the plurality of limiting holes (11) are spaced apart along the extending direction of the pre-fabricated track slab (10).
3. The plate track system according to claim 1, wherein the aperture of the limiting hole (11) is gradually reduced from top to bottom.
4. A slab track system according to claim 1, characterised in that the insulation layer (30) is a geotextile layer or a rubber layer.
5. The slab track system as claimed in claim 1, wherein the isolation layer (30) comprises a plurality of strip-shaped vibration-damping pads (32) and a plurality of strip-shaped foam boards (33) which are arranged in a transverse direction, wherein the strip-shaped foam boards (33) are provided at both sides of the strip-shaped vibration-damping pads (32), respectively, and are assembled into a whole, and both extend in an extending direction of the prefabricated track slab (10).
6. The slat track system according to claim 5, wherein the side of the slat track system facing the insulation layer (30) has a positioning groove (60), a portion of the strip-shaped damping pad (32) being embedded in the positioning groove (60).
7. A panel-type rail system according to any one of claims 1-6, characterized in that the top end of the limiting structure (21) protrudes out of the limiting hole (11) or is flush with the top opening of the limiting hole (11).
8. The slat track system according to any one of claims 1 to 6,
the prefabricated track slab (10) is one or more of a reinforced concrete track slab, a pre-tensioned pre-stressed track slab or a post-tensioned pre-stressed track slab; and/or
Drainage terminals or grounding terminals are arranged on the four corner surfaces or the side surfaces of the prefabricated track plate (10); and/or
And the prefabricated track slab (10) is provided with a base mark for measuring the paving slab.
9. The slat track system according to any one of claims 1 to 6,
the cross section of the limiting holes (11) is one or more of circular, polygonal and oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995845.9U CN210134295U (en) | 2018-11-29 | 2018-11-29 | Plate-type track system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995845.9U CN210134295U (en) | 2018-11-29 | 2018-11-29 | Plate-type track system |
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| Publication Number | Publication Date |
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| CN210134295U true CN210134295U (en) | 2020-03-10 |
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| CN201821995845.9U Active CN210134295U (en) | 2018-11-29 | 2018-11-29 | Plate-type track system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663373A (en) * | 2020-06-04 | 2020-09-15 | 深圳大学 | Shock absorption and isolation floating slab track |
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2018
- 2018-11-29 CN CN201821995845.9U patent/CN210134295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663373A (en) * | 2020-06-04 | 2020-09-15 | 深圳大学 | Shock absorption and isolation floating slab track |
| CN111663373B (en) * | 2020-06-04 | 2022-02-15 | 深圳大学 | Shock absorption and isolation floating slab track |
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