CN113106790A - Prefabricated plate type ballastless track structure - Google Patents
Prefabricated plate type ballastless track structure Download PDFInfo
- Publication number
- CN113106790A CN113106790A CN202110317520.5A CN202110317520A CN113106790A CN 113106790 A CN113106790 A CN 113106790A CN 202110317520 A CN202110317520 A CN 202110317520A CN 113106790 A CN113106790 A CN 113106790A
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- China
- Prior art keywords
- prefabricated
- track
- plate
- slab
- elevation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 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
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000003245 coal Substances 0.000 description 10
- 238000005086 pumping Methods 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000004746 geotextile Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000010276 construction Methods 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
- 239000000843 powder Substances 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
- 230000009286 beneficial effect Effects 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
- 238000002955 isolation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- 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
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention 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 invention can not only solve the problems of dirt, serious hardening, poor elasticity and the like of the ballast bed under the silo, but also realize the quick laying and replacement of the track structure, reduce the influence on the operation of the existing line, reduce the maintenance workload of the track and save the maintenance cost.
Description
Technical Field
The invention relates to a prefabricated plate type ballastless track structure, belongs to the field of track engineering, and is suitable for track structures in sections with rapid disease development, such as rapid pavement, replacement, roadbed hardening, slurry pumping and the like.
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.
Disclosure of Invention
The invention aims to solve the technical problems that a track structure which can be laid and replaced quickly and can effectively avoid diseases such as road bed hardening, slurry pumping and mud pumping is designed, the influence of maintenance and repair on transportation operation is reduced, and the purposes of good track geometric state and small track maintenance amount are achieved.
The technical scheme adopted by the invention is as follows:
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 invention is suitable for the structure of the prefabricated slab ballastless track which can be quickly paved and replaced.
The invention is suitable for track structures with disease development rapid sections such as rapid laying, replacement or roadbed hardening, slurry turning and mud pumping.
The invention has the beneficial effects that:
the invention relates to a prefabricated plate type ballastless track structure capable of being laid and replaced quickly, which can solve the problems of dirt, serious hardening, poor elasticity and the like of a ballast bed under a silo, realize quick laying and replacement of the track structure, reduce the influence on the operation of an existing line, reduce the maintenance workload of the track and save the maintenance cost.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a floor plan of the present invention;
FIG. 3 is a plan view of a prefabricated track slab of the present invention;
FIG. 4 is a cross-sectional view of a prefabricated track slab of the present invention;
FIG. 5 is a plan view of the base plate of the present invention;
FIG. 6 is a plan and cross-sectional view of an elevation adjuster according to 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 invention is suitable for track structures with disease development rapid sections such as rapid laying, replacement or roadbed hardening, slurry turning and mud pumping.
The construction process of the invention is 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 |
|---|---|---|---|
| CN202110317520.5A CN113106790A (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110317520.5A CN113106790A (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113106790A true CN113106790A (en) | 2021-07-13 |
Family
ID=76710512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110317520.5A Pending CN113106790A (en) | 2021-03-23 | 2021-03-23 | Prefabricated plate type ballastless track structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113106790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627665A (en) * | 2022-12-06 | 2023-01-20 | 中国铁路设计集团有限公司 | Construction method of fast-supporting integrally-assembled prefabricated track structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913302A (en) * | 1995-07-04 | 1997-01-14 | Nippon Kogen Concrete Kk | Installation method and structure of directly connected sleeper |
| JPH11269801A (en) * | 1998-03-25 | 1999-10-05 | East Japan Railway Co | Labor-saving track structure on soil structure, and settlement repair method of labor-saving track on soil structure |
| US20040099750A1 (en) * | 2000-09-12 | 2004-05-27 | Dieter Reichel | Method and device for correcting the position of a slab construction consisting of precast concrete slabs |
| CN106988164A (en) * | 2017-05-09 | 2017-07-28 | 中铁二十二局集团第工程有限公司 | Platy ballastless track structure and its construction method |
| CN108442196A (en) * | 2018-05-29 | 2018-08-24 | 中国铁路设计集团有限公司 | A kind of non-fragment orbit deformation adjustment structure and method of adjustment |
| CN108589433A (en) * | 2018-08-01 | 2018-09-28 | 广西三维铁路轨道制造有限公司 | A kind of support type assembled ballastless track structure |
| CN110629594A (en) * | 2019-10-23 | 2019-12-31 | 西南交通大学 | Large-adjustment-quantity plate type ballastless track and height adjustment method thereof |
| CN111321635A (en) * | 2018-12-14 | 2020-06-23 | 中国铁道科学研究院集团有限公司 | Method for adjusting height of ballastless track |
| CN111593619A (en) * | 2020-05-29 | 2020-08-28 | 中铁一局集团有限公司 | Construction method of urban rail transit plate type ballast bed structure |
| CN215104290U (en) * | 2021-03-23 | 2021-12-10 | 杭州银龙唐普徕科技有限公司 | Prefabricated plate type ballastless track structure |
-
2021
- 2021-03-23 CN CN202110317520.5A patent/CN113106790A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913302A (en) * | 1995-07-04 | 1997-01-14 | Nippon Kogen Concrete Kk | Installation method and structure of directly connected sleeper |
| JPH11269801A (en) * | 1998-03-25 | 1999-10-05 | East Japan Railway Co | Labor-saving track structure on soil structure, and settlement repair method of labor-saving track on soil structure |
| US20040099750A1 (en) * | 2000-09-12 | 2004-05-27 | Dieter Reichel | Method and device for correcting the position of a slab construction consisting of precast concrete slabs |
| CN106988164A (en) * | 2017-05-09 | 2017-07-28 | 中铁二十二局集团第工程有限公司 | Platy ballastless track structure and its construction method |
| CN108442196A (en) * | 2018-05-29 | 2018-08-24 | 中国铁路设计集团有限公司 | A kind of non-fragment orbit deformation adjustment structure and method of adjustment |
| CN108589433A (en) * | 2018-08-01 | 2018-09-28 | 广西三维铁路轨道制造有限公司 | A kind of support type assembled ballastless track structure |
| CN111321635A (en) * | 2018-12-14 | 2020-06-23 | 中国铁道科学研究院集团有限公司 | Method for adjusting height of ballastless track |
| CN110629594A (en) * | 2019-10-23 | 2019-12-31 | 西南交通大学 | Large-adjustment-quantity plate type ballastless track and height adjustment method thereof |
| CN111593619A (en) * | 2020-05-29 | 2020-08-28 | 中铁一局集团有限公司 | Construction method of urban rail transit plate type ballast bed structure |
| CN215104290U (en) * | 2021-03-23 | 2021-12-10 | 杭州银龙唐普徕科技有限公司 | Prefabricated plate type ballastless track structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627665A (en) * | 2022-12-06 | 2023-01-20 | 中国铁路设计集团有限公司 | Construction method of fast-supporting integrally-assembled prefabricated track structure |
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