CN215104290U - Prefabricated plate type ballastless track structure - Google Patents
Prefabricated plate type ballastless track structure Download PDFInfo
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- CN215104290U CN215104290U CN202120587962.7U CN202120587962U CN215104290U CN 215104290 U CN215104290 U CN 215104290U CN 202120587962 U CN202120587962 U CN 202120587962U CN 215104290 U CN215104290 U CN 215104290U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 5
- 239000003566 sealing material Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 10
- 201000010099 disease Diseases 0.000 abstract description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 6
- 239000012634 fragment Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 239000004746 geotextile Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model discloses a prefabricated plate-type ballastless track structure. Laying a leveling layer and an elevation adjuster on the base plate, laying a prefabricated track plate on the leveling layer and the elevation adjuster, and laying steel rails on the prefabricated track plate through fasteners; an elevation adjuster is arranged on the base plate, and a leveling layer is arranged between the base plate and the prefabricated track plate; the prefabricated track slabs are sequentially arranged along the laying direction of the steel rail, slab joints are arranged between adjacent prefabricated track slabs and are filled with filling materials, and the tops of the slab joints are sealed by sealing materials; at least one grouting hole is formed in the center line of the prefabricated track slab; and self-compacting concrete mortar is poured into the base plate and the prefabricated track plate from the grouting hole to serve as a leveling layer. The utility model discloses both can solve the silo down have the tiny fragments of stone, coal, etc. railway roadbed dirty, harden serious, elasticity difference disease, can realize laying fast, changing of track structure again, reduce the influence to existing line operation, reduce track maintenance work load, practice thrift cost of maintenance.
Description
Technical Field
The utility model relates to a prefabricated plate-type ballastless track structure belongs to the track engineering field, is applicable to the track structure that has disease development rapid sections such as quick laying, change or the railway roadbed hardens, the mud pumping turns over.
Background
The coal conveying special line mainly adopts a ballast track structure. After coal is mined, the coal is loaded into a truck through a silo, and a large amount of coal dust enters a ballast bed at the loading part, so that the coal dust is difficult to clean, and the surface of the ballast bed is covered by a large amount of coal slag; in addition, in order to prevent the coal powder from polluting the environment in the coal loading process, dust suppression liquid and anti-freezing liquid are synchronously sprayed in the coal loading process, and part of liquid directly flows into the ballast bed. Due to the reasons, after the coal powder, the dust suppression liquid and the anti-freezing liquid invade the ballast bed, the ballast bed is seriously hardened, poor in elasticity, unsmooth in drainage of ditches at two sides, sunken in the foundation of a local area, slurry turning and mud pumping and the like. The normal use function of the track structure is seriously influenced.
Most of the existing coal transportation lines in China are opened and operated for years, the ballast bed structure is continuously deteriorated, and the track structure is urgently required to be maintained and remedied in order to solve the problems of dirt, consolidation and the like of the ballast bed. However, the special coal conveying line is busy in transportation operation and short in skylight maintenance operation time, and the prior art lacks of a track structure which can be quickly laid and replaced and can effectively avoid diseases such as roadbed hardening.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a track structure that can lay fast, change and can effectively avoid the ballast bed to harden, turn over diseases such as thick liquid and mud pumping is designed, reduces the influence of maintenance to the transportation operation, realizes that track geometry is good, the track maintenance volume is few purpose.
The utility model adopts the technical proposal that:
the prefabricated slab ballastless track structure mainly comprises steel rails, fasteners, prefabricated track slabs, leveling layers, base plates and elevation adjusters; laying a leveling layer and an elevation adjuster on the base plate, laying a prefabricated track plate on the leveling layer and the elevation adjuster, and laying steel rails on the prefabricated track plate through fasteners; and an elevation adjuster is arranged on the bottom surface of the base plate right below the steel rail, and a leveling layer is arranged between the base plate on the periphery of the elevation adjuster and the prefabricated track plate.
The prefabricated track slabs are sequentially arranged along the laying direction of the steel rail, slab joints are arranged between every two adjacent prefabricated track slabs and are filled with filling materials, and the tops of the slab joints are sealed by sealing materials.
At least one grouting hole is formed in the center line of the prefabricated track slab; and self-compacting concrete mortar is poured into the top surface of the base plate from the grouting hole.
The prefabricated track slab is provided with rail bearing platforms at intervals along the laying direction of the steel rails, and the steel rails are arranged on the rail bearing platforms through fasteners.
And hoisting holes are formed in the side surfaces of two sides of the prefabricated track slab.
The fastener adopts WL series fastener.
The elevation adjuster adopts a bottom angle bolt supporting structure, and 2-3 pairs of elevation adjusters are distributed at the lower part of each prefabricated track plate.
The utility model is suitable for a have the prefabricated plate-type ballastless track structure that can lay, change fast.
The utility model is suitable for a have fast lay, change or the railway roadbed hardens, turns over the track structure in disease development rapid sections such as thick liquid mud pumping.
The utility model has the advantages that:
the utility model relates to a can lay fast, the prefabricated plate-type ballastless track structure of changing, both can solve the silo down have the tiny fragments of stone, coal, etc. railway roadbed dirty, harden seriously, elasticity is poor, can realize laying fast, changing of track structure again, reduce the influence to existing line operation, reduce track maintenance work load, practice thrift cost of maintenance.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a plan view of the present invention;
FIG. 3 is a plan view of the prefabricated track slab of the present invention;
FIG. 4 is a cross-sectional view of the prefabricated track slab of the present invention;
figure 5 is a plan view of the base plate of the present invention;
fig. 6 is a plan view and a cross sectional view of the elevation adjuster of the present invention.
In the figure, 1, a steel rail, 2, a fastener, 3, a prefabricated rail plate, 4, a leveling layer, 5, a base plate, 6, an elevation adjuster, 7, a hoisting hole, 8, a rail bearing platform and 9, a grouting hole are arranged.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, the prefabricated slab ballastless track structure mainly comprises a steel rail 1, a fastener 2, a prefabricated track slab 3, a leveling layer 4, a base plate 5 and an elevation adjuster 6; the leveling layer 4 and the elevation adjuster 6 are paved on the base plate 5, the prefabricated track plate 3 is paved on the leveling layer 4 and the elevation adjuster 6, and the steel rail 1 is paved on the prefabricated track plate 3 through the fastener 2. The fastener 2 can be adjusted in height and horizontal direction by using WL series fasteners.
An elevation adjuster 6 is arranged on the bottom surface of the prefabricated base plate 5 right below the steel rail 1, and a pouring leveling layer 4 is arranged between the base plate 5 on the periphery of the elevation adjuster 6 and the prefabricated rail plate 3. The leveling layer 4 adopts fast-hardening early-strength self-compacting concrete mortar. The elevation adjuster 6 is of a cast-in-place concrete structure, and 2-3 pairs of elevation adjusters are distributed at the lower part of each prefabricated track plate 3. The prefabricated track slab 3 is a unit structure and bidirectional prestress prefabricated track slab, and can improve the bending strength of the track slab.
The prefabricated base plate 5 is a unit prefabricated structure and is provided with double-layer steel bars. Geotextile is laid on the upper portion of the base plate 5, and the track plate can be quickly adjusted or detached when later maintenance is realized.
The plurality of prefabricated track boards 3 are sequentially arranged along the laying direction of the steel rail 1, board joints are arranged between the adjacent prefabricated track boards 3 and are filled with filling materials, and the tops of the board joints are sealed by sealing materials.
The prefabricated track slab 3 is provided with at least one grouting hole 9 at intervals on a self central line between two steel rails, wherein 1-2 grouting holes are arranged along the central line, and the grouting holes 9 are used for pouring self-compacting concrete; self-compacting concrete mortar is poured into the base plate and the prefabricated track plate from the grouting holes 9 to serve as a leveling layer.
As shown in fig. 2 and 3, the prefabricated track slabs 3 are provided with rail support bases 8 at intervals along the laying direction of the steel rails 1, and the steel rails 1 are mounted on the rail support bases 8 through fasteners 2. 5-7 pairs of rail bearing platforms 8 are distributed on each prefabricated rail plate 3, and each rail bearing platform 8 is symmetrically arranged on each steel rail to form a pair of rail bearing platforms.
As shown in fig. 2 and 3, hoisting holes 7 are formed in both side surfaces of the prefabricated track slab 3, and the hoisting holes 7 are used for lifting the track slab by a crane or the like to install, maintain, repair, or the like the track structure.
The utility model is suitable for a have fast lay, change or the railway roadbed hardens, turns over the track structure in disease development rapid sections such as thick liquid mud pumping.
The utility model discloses a work progress as follows:
as shown in figure 1, the foundation at the lower part of the track structure is leveled by silt, and after the treatment is finished, a base plate 5 is laid at the upper part of the foundation and leveled. Leveling layers 4 are arranged between the base plate 5 and the prefabricated track plate 3, geotextile is laid on the top surface of the base plate 5, elevation regulators are arranged according to a certain distance, the prefabricated track plate 3 is temporarily supported through the elevation regulators 6, the prefabricated track plate 3 is laid after the elevation regulators 6 are leveled, and the leveling layers 4 are constructed after the prefabricated track plate 3 is finely adjusted. And finally, installing the steel rail 1 and the fastener 2.
The size of the geotextile laid on the top surface of the base plate 5 is consistent with that of the base plate 5, so that the isolation effect is achieved, and later maintenance is facilitated.
As shown in fig. 3 and 4, the prefabricated track slab 3 is manufactured in a factory, and a certain number of longitudinal and transverse prestressed reinforcements and a certain number of construction reinforcements are arranged in the prefabricated track slab, wherein the specific number is determined according to requirements.
An embedded sleeve is arranged in the rail bearing platform 8 of the prefabricated rail plate 3 so as to fix the steel rail on the prefabricated rail plate 3 through a fastener. The prefabricated track plate 3 is longitudinally provided with an expansion joint with a certain width along the line, the expansion joint is filled with a filling material, and the top of the expansion joint is sealed by a sealing material. When the prefabricated track slab 3 is manufactured, a grouting hole 9 with a certain size is reserved for pouring a self-compacting concrete leveling layer. Two pairs of hoisting holes 7 are pre-buried in the side of the prefabricated track slab 3 and are used for hoisting the prefabricated track slab through machinery so as to carry out installation, maintenance and the like. Four corners of the prefabricated track slab 3 are chamfered, so that collision and corner drop during transportation and installation are avoided.
As shown in fig. 5 and 6, the elevation adjuster 6 is a bottom angle bolt support structure, and the height of the elevation adjuster should be 1cm lower than the thickness of the leveling layer, so as to level the elevation adjuster 6. Under rail 1 corresponds, elevation regulator 6 is vertical along the line, arrange on base upper portion according to the determining deviation, accessible adhesive or other simple and easy restraint modes realize with the restraint of base between elevation regulator 6 and base, and the train load passes through elevation regulator 6 and transmits to the lower part basis, plays the effect of temporary support track board, can guarantee to lay the track board in the short time, realizes the demand of expert car fast.
Claims (7)
1. The utility model provides a prefabricated plate-type ballastless track structure which characterized in that:
the prefabricated plate type ballastless track structure mainly comprises steel rails (1), fasteners (2), prefabricated track plates (3), leveling layers (4), base plates (5) and elevation regulators (6); a leveling layer (4) and an elevation adjuster (6) are laid on the base plate (5), a prefabricated track plate (3) is laid on the leveling layer (4) and the elevation adjuster (6), and a steel rail (1) is laid on the prefabricated track plate (3) through a fastener (2); the base plate (5) bottom surface under rail (1) set up elevation regulator (6), arrange leveling layer (4) between peripheral base plate (5) of elevation regulator (6) and prefabricated track board (3).
2. The prefabricated slab ballastless track structure of claim 1, wherein:
the prefabricated track slabs (3) are sequentially arranged along the laying direction of the steel rail (1), slab joints are arranged between the adjacent prefabricated track slabs (3), the slab joints are filled with filling materials, and the tops of the slab joints are subjected to sealing treatment by adopting sealing materials.
3. The prefabricated slab ballastless track structure of claim 1, wherein:
at least one grouting hole (9) is formed in the center line of the prefabricated track plate (3); self-compacting concrete mortar is poured into the top surface of the base plate (5) from the grouting holes (9).
4. The prefabricated slab ballastless track structure of claim 1, wherein:
the prefabricated track plate (3) is arranged on the rail bearing platform (8) at intervals along the laying direction of the steel rail (1), and the steel rail (1) is installed on the rail bearing platform (8) through the fasteners (2).
5. The prefabricated slab ballastless track structure of claim 1, wherein:
hoisting holes (10) are formed in the side faces of two sides of the prefabricated track plate (3).
6. The prefabricated slab ballastless track structure of claim 1, wherein:
the fastener (2) adopts WL series fasteners.
7. The prefabricated slab ballastless track structure of claim 1, wherein:
the elevation adjuster (6) adopts a bottom angle bolt supporting structure, and 2-3 pairs of elevation adjusters (6) are distributed at the lower part of each prefabricated track plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120587962.7U CN215104290U (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120587962.7U CN215104290U (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215104290U true CN215104290U (en) | 2021-12-10 |
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ID=79344369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120587962.7U Active CN215104290U (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215104290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106790A (en) * | 2021-03-23 | 2021-07-13 | 杭州银龙唐普徕科技有限公司 | Prefabricated plate type ballastless track structure |
| CN115491933A (en) * | 2022-09-27 | 2022-12-20 | 中铁第四勘察设计院集团有限公司 | Large-adjustment-amount track structure and construction method and maintenance method thereof |
-
2021
- 2021-03-23 CN CN202120587962.7U patent/CN215104290U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106790A (en) * | 2021-03-23 | 2021-07-13 | 杭州银龙唐普徕科技有限公司 | Prefabricated plate type ballastless track structure |
| CN115491933A (en) * | 2022-09-27 | 2022-12-20 | 中铁第四勘察设计院集团有限公司 | Large-adjustment-amount track structure and construction method and maintenance method thereof |
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