CN202194031U - Large unit type track plate for ballastless tracks - Google Patents
Large unit type track plate for ballastless tracks Download PDFInfo
- Publication number
- CN202194031U CN202194031U CN 201120137765 CN201120137765U CN202194031U CN 202194031 U CN202194031 U CN 202194031U CN 201120137765 CN201120137765 CN 201120137765 CN 201120137765 U CN201120137765 U CN 201120137765U CN 202194031 U CN202194031 U CN 202194031U
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- Prior art keywords
- bed board
- flexible
- baste
- road bed
- road
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Abstract
The utility model relates to a large unit type track plate for ballastless tracks. Tensile stress and compression stress of all parts of the track plate of the ballastless tracks are different along with change of temperature so as to cause deformation difference of each part, even lead a track bed plate to crack and be broken and affect smoothness and service life of the track. The track bed plate of the ballastless tracks is divided into a plurality of large unit plates by transparent flexible true joints, each large unit plate is divided into a plurality of small unit plates by non-transparent false joints, and deformation of track plate caused by change of environmental factors is relaxed by the common action of the non-transparent false joints arranged on a bearing layer and corresponding to true false joints of the track bed plates in one-to-one mode. A large unit structure of the track plate enables the tensile stress and the compression stress generated in the track bed plate to decrease, prevents ultralimit, overproof and irregular cracks caused by continuous structure of the track, especially prevents the track bed plate from arching in extreme high temperature seasons, and guarantees smoothness and safety of the track.
Description
Technical field
The utility model belongs to the railway track construction technical field, is specifically related to a kind of non-fragment orbit big unit formula track plate.
Background technology
Traditional railroad track is made up of ballast bed, sleeper, rail and fastener etc.; Directly the sleeper of supporting rail is generally treated sleeper, is embedded in the stone tiny fragments of stone, coal, etc., and its effect is that loading transfer with rail is to roadbed; Though the track cost of the type is lower; But linear precision is not high, and maintenance capacity is big, is not suitable for the current of bullet train.In recent years; In order to adapt to the needs of railway speed increase; The non-fragment orbit technology is good with its ride comfort, cycle life-cycle long, safeguard that less characteristics become the advanced track technology that substitutes conventional rails, and its linear high-precision characteristics make train operation have higher safety and comfortableness.The sleeper of non-fragment orbit is a reinforced concrete precast member, in earth roadbed or tunnel, after rail and sleeper are laid respectively and be poured into the concrete road bed board; In the bigger area of temperature Change; Each ingredient of track is temperature variant to be drawn, compressive stress is not quite similar, and causes the deformation difference of each ingredient, even the phenomenon of railway roadbed plank split, fracture takes place; The ride comfort and the application life of non-fragment orbit be will influence when serious greatly, the speed and the safety of train operation also reduced.
Summary of the invention
The purpose of the utility model provides a kind ofly utilizes penetrating flexible true seam that the road bed board is divided into some big unit plates, the big unit plate is divided into the non-fragment orbit big unit formula track plate of some junior unit plates with not penetrating flexible baste again; Cooperate be provided with on the supporting bed with the not penetrating one to one flexible baste of the true and false seam of road bed board; Acting in conjunction relaxes the track plate and changes deformation that produces and the cracking of avoiding bed board with environmental factor.
The technical scheme that the utility model adopted is:
A kind of non-fragment orbit big unit formula track plate includes supporting bed, road bed board and sleeper, and the road bed board is laid on the supporting bed, and sleeper is embedded on the road bed board, it is characterized in that:
Described road bed board is provided with the flexible true seam of penetrating road bed board, is provided with the flexible baste of some impermeable roads bed board between the flexible true seam of road bed board;
The position and the sleeper position of flexible true seam of described road bed board and the flexible baste of road bed board are not overlapping;
Described supporting bed upper surface is provided with the flexible baste of impermeable supporting bed corresponding to the position of flexible true seam of road bed board and the flexible baste of road bed board.
The degree of depth of cracking of the flexible baste of described supporting bed is 1/4 of a supporting bed thickness, and width is 4～8 millimeters.
The width of the flexible true seam of described road bed board is 20～40 millimeters.
The degree of depth of cracking of the flexible baste of described road bed board is 1/4 of a supporting bed thickness, and width is 4～8 millimeters.
All be perfused with elastic water-proof embedding sealing in flexible baste of described supporting bed and the flexible baste of road bed board.
Between the flexible true seam seam of described road bed board dowel bar is set, lower floor's filled polyethylene cystosepiment of dowel bar between seam, upper strata perfusion elastic water-proof embedding sealing.
Described road bed board adopts double-deck arrangement of reinforcement, individual layer arrangement of reinforcement or unreinforced structure.
When described road bed board adopted double-deck reinforcement structure, the upper strata longitudinal reinforcement broke off at the flexible baste place of bed board in the road, and lower floor's reinforcing bar does not break off.
When described road bed board adopted the individual layer reinforcement structure, longitudinal reinforcement was crossed over the flexible baste of road bed board, and the staggered symmetry in the flexible baste both sides of bed board is broken off in the road, and the reinforcing bar of crossing over the flexible baste of road bed board partly wraps up layer of plastic film or pitching.
When described road bed board adopted the unreinforced structure, the flexible baste place of bed board was provided with vertical bar dowel in the road, and bar dowel one end is fixed in the bed board, other end parcel layer of plastic film or pitching.
The utlity model has following advantage:
The big unit structure of the track plate that the utility model is related; Make that the railway roadbed intralamellar part produces, diminish by drawing of causing of variations in temperature, compressive stress; That has avoided that the track continuous structure produced transfinites, exceeds standard and irregular cracks, particularly can avoid the phenomenon that rises at the railway roadbed plate arch that thermal extremes takes place season; Because this track plate allows structure flexible, greatly reduces the stress in the bed board, thereby can reduce the longitudinal reinforcement amount in the plate, compare with continuous track plate, under equal projected life intensity, can save 1/3 or 1/2 amount of reinforcement at least; Set true, baste all adopt the perfusion of elasticity caulk compound, and anti-sealing and sand and dust are invaded in the seam, can avoid environment to concrete erosion, guarantee the application life of road bed board; Bed board flexible true seam place in road is provided with dowel bar; Limited the shear strain between the plate, the baste place is provided with the continuous or reinforcing bar leap of an amount of reinforcing bar, has limited the shear strain between the plate equally; Can guarantee that orbital position and line midline remain on the original position state, have guaranteed the ride comfort of train operation.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 adopts the structural representation of individual layer arrangement of reinforcement scheme for the road bed board.
Among the figure, 1-roadbed, 2-supporting bed, 3-road bed board, 4-sleeper, the flexible true seam of 5-road bed board, the 6-road bed board baste that stretches, the 7-supporting bed baste that stretches, 8-dowel bar, 9-road bed board longitudinal reinforcement, 10-road bed board transverse reinforcement.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is carried out detailed explanation.
The related non-fragment orbit big unit formula track plate of the utility model is provided with supporting bed 2, road bed board 3 and sleeper 4.
Supporting bed 2 is routed on the roadbed 1, can adopt C15, C20 concrete or hydraulicity supporting bed, and thickness is 250～300 millimeters, and width is 3 meters.Its upper surface sawing goes out the flexible baste 7 of the supporting bed vertical with orbital direction, and the degree of depth is 1/4 of supporting bed 2 thickness, and width is 4～8 millimeters.Distance between the flexible baste 7 of per two supporting beds is 3.9 meters.Perfusion waterproof embedding sealing in the flexible baste 7 of supporting bed, the embedding sealing is solidified the back and is formed the elastic body that is adhered in the concrete seam.
Sleeper 4 is embedded in bed board 3 tops, and profile can be set to one piece, double-block type or bolster formula, can be designed to C50 or C60 reinforced concrete structure according to force request, can be designed to 550mm to 750mm along the longitudinal pitch of track according to the track Force Calculation.Sleeper bottom or side have the reinforcing bar or the railway roadbed board concrete that stretch out and are connected.The position of sleeper 4 is not overlapping with the flexible baste 6 of road bed board, and promptly bed board flexible baste 6 in road should be arranged between the sleeper 4.
It is flexible that the utility model can adapt to the temperature that-45 ℃～+ 70 ℃ extreme low temperatures, hot environments cause, when low-temperature condition, big unit road bed board 3 shortens, and bed board flexible true seam 5 in road broadens, and bed board flexible baste 6 weakenings place in road form limited crack; When the condition of high temperature, 3 elongations of big unit road bed board, the limited crack that bed board flexible baste 6 weakenings place in road form is squeezed closes, and bed board flexible true seam 5 in road narrows down.This big unit structure makes that the inner temperature that produce of bed board 3 are drawn, compressive stress diminishes, and that has avoided that the sort of continuous structure produced transfinites, exceeds standard and irregular cracks, particularly can avoid playing phenomenon at the railway roadbed plate arch that thermal extremes takes place season.
The stretch flexible true seam 5 of baste 7, road bed board and the flexible baste 6 of road bed board of supporting bed all adopts the caulk compound perfusion; Colloid has the secure bond between suitable elasticity and enough strong and the concrete; Anti-sealing; In the intrusion seam of sand and dust, can avoid environment, guarantee the application life of road bed board concrete erosion.
In the flexible true seam 5 of road bed board dowel bar is set, has limited the shear strain between the plate; Bed board flexible baste 6 in road has the continuous or reinforcing bar leap of an amount of reinforcing bar, has limited the shear strain between the plate equally.This restriction can guarantee that orbital position and line midline remain on the original position state, have guaranteed the ride comfort of train operation.
Because the track plate that the utility model relates to allows structure flexible, greatly reduces the bed board internal stress, thereby can reduce the longitudinal reinforcement amount in the plate.Compare with continuous track plate, under equal projected life intensity, can save 1/3 or 1/2 amount of reinforcement at least.
Claims (10)
1. a non-fragment orbit big unit formula track plate includes supporting bed (2), road bed board (3) and sleeper (4), and road bed board (3) is laid on the supporting bed (2), and sleeper (4) is embedded on road bed board (3), it is characterized in that:
Described road bed board (3) is provided with the flexible true seam of penetrating road bed board (5), is provided with bed board flexible baste (6) in some impermeable roads between the flexible true seam of road bed board (5);
The position and sleeper (4) position of the flexible baste (6) of flexible true seam of described road bed board (5) and road bed board are not overlapping;
Described supporting bed (2) upper surface is provided with the flexible baste (7) of impermeable supporting bed corresponding to the position of flexible true seam of road bed board (5) and the flexible baste (6) of road bed board.
2. a kind of non-fragment orbit big unit formula track plate according to claim 1 is characterized in that the stretch degree of depth of cracking of baste (7) of described supporting bed is 1/4 of a supporting bed thickness, and width is 4～8 millimeters.
3. a kind of non-fragment orbit big unit formula track plate according to claim 1 is characterized in that the width of the flexible true seam of described road bed board (5) is 20～40 millimeters.
4. a kind of non-fragment orbit big unit formula track plate according to claim 1 is characterized in that the degree of depth of cracking of the flexible baste (6) of described road bed board is 1/4 of a supporting bed thickness, and width is 4～8 millimeters.
5. a kind of non-fragment orbit big unit formula track plate according to claim 1 is characterized in that described supporting bed stretches all to be perfused with elastic water-proof embedding sealing in the flexible baste (6) of baste (7) and road bed board.
6. a kind of non-fragment orbit big unit formula track plate according to claim 1; It is characterized in that: between the flexible true seam of described road bed board (5) seam dowel bar (8) is set; Lower floor's filled polyethylene cystosepiment of dowel bar between seam (8), upper strata perfusion elastic water-proof embedding sealing.
7. a kind of non-fragment orbit big unit formula track plate according to claim 1, it is characterized in that: described road bed board (3) adopts double-deck arrangement of reinforcement, individual layer arrangement of reinforcement or unreinforced structure.
8. a kind of non-fragment orbit big unit formula track plate according to claim 7 is characterized in that: when described road bed board (3) adopts double-deck reinforcement structure, the upper strata longitudinal reinforcement in the road the flexible baste (6) of bed board locate to break off, lower floor's reinforcing bar does not break off.
9. a kind of non-fragment orbit big unit formula track plate according to claim 7; It is characterized in that: when described road bed board (3) adopts the individual layer reinforcement structure; Longitudinal reinforcement is crossed over the flexible baste (6) of road bed board; And the staggered symmetry disconnection in flexible baste (6) both sides of bed board in the road, and the reinforcing bar of the flexible baste (6) of leap road bed board partly wraps up layer of plastic film or pitching.
10. a kind of non-fragment orbit big unit formula track plate according to claim 7; It is characterized in that: when described road bed board (3) adopts the unreinforced structure; The flexible baste (6) of bed board locates to be provided with vertical bar dowel in the road; Bar dowel one end is fixed in the bed board, other end parcel layer of plastic film or pitching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120137765 CN202194031U (en) | 2011-05-04 | 2011-05-04 | Large unit type track plate for ballastless tracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120137765 CN202194031U (en) | 2011-05-04 | 2011-05-04 | Large unit type track plate for ballastless tracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194031U true CN202194031U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120137765 Expired - Lifetime CN202194031U (en) | 2011-05-04 | 2011-05-04 | Large unit type track plate for ballastless tracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194031U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261022A (en) * | 2011-05-04 | 2011-11-30 | 中铁第一勘察设计院集团有限公司 | Big unit type track slabs of ballastless track |
| CN109352793A (en) * | 2018-09-05 | 2019-02-19 | 北京九州轨隔振技术有限公司 | A kind of manufacturing method of multistage precast track plate |
| CN114941258A (en) * | 2022-06-23 | 2022-08-26 | 中铁十八局集团有限公司 | Anti-cracking construction method for concrete track bed slab of CRTS I type double-block ballastless track of high-speed railway tunnel |
-
2011
- 2011-05-04 CN CN 201120137765 patent/CN202194031U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261022A (en) * | 2011-05-04 | 2011-11-30 | 中铁第一勘察设计院集团有限公司 | Big unit type track slabs of ballastless track |
| CN102261022B (en) * | 2011-05-04 | 2013-04-03 | 中铁第一勘察设计院集团有限公司 | Big unit type track slabs of ballastless track |
| CN109352793A (en) * | 2018-09-05 | 2019-02-19 | 北京九州轨隔振技术有限公司 | A kind of manufacturing method of multistage precast track plate |
| CN114941258A (en) * | 2022-06-23 | 2022-08-26 | 中铁十八局集团有限公司 | Anti-cracking construction method for concrete track bed slab of CRTS I type double-block ballastless track of high-speed railway tunnel |
| CN114941258B (en) * | 2022-06-23 | 2023-05-23 | 中铁十八局集团有限公司 | Anti-cracking construction method for CRTS I type double-block ballastless track concrete track slab of high-speed railway tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120418 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |