CN206204764U - There is the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges - Google Patents
There is the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges Download PDFInfo
- Publication number
- CN206204764U CN206204764U CN201621206667.8U CN201621206667U CN206204764U CN 206204764 U CN206204764 U CN 206204764U CN 201621206667 U CN201621206667 U CN 201621206667U CN 206204764 U CN206204764 U CN 206204764U
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- CN
- China
- Prior art keywords
- ballast bed
- extruded sheet
- railway
- ballast
- fluidisation
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000005243 fluidization Methods 0.000 title claims abstract description 17
- 238000009408 flooring Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000004078 waterproofing Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 239000012634 fragment Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010001557 Albinism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Railway Tracks (AREA)
Abstract
The utility model is disclosed the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges, there is the extruded sheet of ballast bed lateral flow constraint is respectively provided between High-speed Railway Bridges uplink and downlink have ballast bed and between railway roadbed and anti-collision wall, the height of the extruded sheet is higher than the height of railway ballast.Extruded sheet of the present utility model can constrain the lateral flow of ballast bed, improve railway roadbed sidewise restraint, strengthen railway roadbed globality, and extruded sheet is detachable simultaneously to delay railway roadbed maintenance cycle, is easy to railway maintenance to repair；Extruded sheet light weight, can reduce bridge superstructure dead load, reduce expenditure of construction, improve anti-seismic performance, be particularly suited for earthquake region seamless turnout on bridge.
Description
Technical field
The utility model is related to one kind to have ballast bed structure, belongs to field of track traffic.More particularly, to a kind of high speed
There is the anti-fluidisation lightweight construction of ballast bed on railway bridge.
Background technology
High-speed railway is from the point of view of track structure form, to be divided into Ballast track and the major class of non-fragment orbit two, can be met
300km/h and above operation.But compared to Ballast track, non-fragment orbit is transported due to itself material, structure and railway construction
The particularity of battalion, its breakage is repaired more difficult.On the other hand, Ballast track structure has more flexibility, it is easy to maintenance,
Applied widely, construction cost is low, speed is fast etc., with vigorous vitality.Certainly, high-speed railway Ballast track exists on bridge
" fluidisation " phenomenon, fluidisation refers to that, when car speed reaches 200km/h and its above, what Ballast track railway ballast occurred on bridge tends to
Flow phenomenon as liquid.Railway ballast liquefaction causes track instability and geometry state deteriorating, and ballast lateral resistance is significantly reduced, will be tight
Ghost image rings car operation safety.There is ballast bed to also have albinism on bridge simultaneously, such as Societe Nationale des Chemins de fer Francais (SNCF) SNCF has found bridge
On have ballast bed, because infrastructure rigidity is larger, cause ballast bed vibration effect obvious, it is prone to fluidisation and the winged tiny fragments of stone, coal, etc..Simultaneously
As Sichuan-Tibet railway construction develops, earthquake region pier bridge high needs to consider Aseismic Design, conventional pier bridge deck track structure quality high is high,
Bridge deadweight is high, earthquake load response is big, and great difficulty is all caused to earthquake region pier Bridge Design high, operation maintenance, safety.
Current high-speed railway has ballast bed to fluidize prevention and controls and be mainly to spray Polyurethane ballast glue and railway ballast completely spreads bridge floor
Method.Above scheme has problems with application process：
1. ballast glue is sprayed, consumption is huge, high cost, ballast glue cost exceedes track structure in itself, and difficulty makes maintenance firm by ramming, it is difficult
In adjustment track geometry；
2. completely paving bridge floor method causes the increase of railway ballast consumption, and bridge dead load increases by more than 20%, bridge, bridge pier and bottom
Foundation cost is significantly improved, and deteriorates the bridge structure life-span.
3. earthquake region pier bridge deadweight high is high, earthquake load response is big, line bridge active force is high, is easily destroyed under geological process
And deterioration.
Utility model content
The technical problems to be solved in the utility model be to provide one kind can reduce bridge superstructure constant load, while can
Constraint has in the High-speed Railway Bridges of ballast bed lateral flow and has the anti-fluidisation lightweight construction of ballast bed.
In order to solve the above technical problems, the utility model uses following technical proposals：
Have the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges, High-speed Railway Bridges uplink and downlink have ballast bed it
Between and railway roadbed and anti-collision wall between be respectively provided with constraint and have the extruded sheet of ballast bed lateral flow, the height ratio of the extruded sheet
The height of railway ballast is high.
Preferably, the height of the extruded sheet is higher than the height of railway ballast 0.1 meter.
Preferably, the width range of the extruded sheet is 1.5~2.2 meters, and altitude range is 0.45~0.6 meter.
Preferably, uplink and downlink have the extruded sheet between ballast bed to be bonded on floorings, squeezing between railway roadbed and anti-collision wall
Mould plate is bonded on anti-collision wall.
The bottom of the extruded sheet being preferably located at bridge floor discharge opening offers the duct for draining.
Preferably, high-speed railway bridge floor sets double drainage slope, and the gradient is 2%, and the seam crossing of the extruded sheet is prevented
Water process.
The beneficial effects of the utility model are as follows：
Extruded sheet of the present utility model can constrain the lateral flow of ballast bed, improve railway roadbed sidewise restraint, strengthen road
Bed globality, extruded sheet is detachable simultaneously to delay railway roadbed maintenance cycle, is easy to railway maintenance to repair；Extruded sheet light weight, can be with
Reduce bridge superstructure dead load, reduce expenditure of construction, improve anti-seismic performance, be particularly suited for earthquake region seamless turnout on bridge.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows structural representation of the present utility model.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit protection domain of the present utility model with this.
As shown in figure 1, anti-collision wall 1 and the high-strength extruded sheet 3 of fixation is installed between having ballast bed 2 in the High-speed Railway Bridges, with
And uplink and downlink have the installation high-strength extruded sheet 3 of fixation between ballast bed, high-strength extruded sheet 3 has ballast bed lateral flow with constraint
Effect, while reduce bridge load and deadweight, improve anti-seismic performance, it is adaptable to earthquake region seamless turnout on bridge, especially pier high
Bridge.
There is the anti-fluidisation lightweight construction of ballast bed to use bilateral symmetry in the utility model High-speed Railway Bridges, there is ballast bed
Extruded sheet 3 between 2 and anti-collision wall 1 is bonded on anti-collision wall 1, and uplink and downlink have the extruded sheet 3 between ballast bed to be bonded in bridge floor
On plate, high-strength extruded sheet width is determined to anti-collision wall distance according to tiny fragments of stone, coal, etc. shoulder, high-strength extruded sheet is determined according to railway ballast thickness degree on bridge
Laying depth, to prevent railway ballast high-strength extrusion molding plate surface of being scattered from causing the winged tiny fragments of stone, coal, etc., railway ballast thickness is less than high-strength extruded sheet height 0.1m,
Therefore can determine that high-strength extruded sheet width, for 1.5-2.2m, is highly 0.45-0.6m.
There is the anti-fluidisation lightweight construction of ballast bed or so parallel longitudinally disposed along track in High-speed Railway Bridges, set on bridge floor double
To weathering, the gradient 2%, the seam crossing of extruded sheet 3 carries out the treatment that discharges water, the bottom of the extruded sheet 3 at bridge floor discharge opening 4
The duct for draining is offered, water is pooled to discharge opening 4 and discharges bridge floor by the duct.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to implementation method of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all of implementation method cannot be exhaustive here,
It is every to belong to the obvious change or change still in of the present utility model that the technical solution of the utility model extends out
The row of protection domain.
Claims (6)
1. the anti-fluidisation lightweight construction of ballast bed is had in a kind of High-speed Railway Bridges, it is characterised in that：Have in High-speed Railway Bridges uplink and downlink
Constraint is respectively provided between ballast bed and between railway roadbed and anti-collision wall the extruded sheet of ballast bed lateral flow, the extruded sheet
Height it is higher than the height of railway ballast.
2. the anti-fluidisation lightweight construction of ballast bed is had in High-speed Railway Bridges according to claim 1, it is characterised in that：It is described to squeeze
The height of mould plate is higher than the height of railway ballast 0.1 meter.
3. the anti-fluidisation lightweight construction of ballast bed is had in High-speed Railway Bridges according to claim 1, it is characterised in that：It is described to squeeze
The width range of mould plate is 1.5~2.2 meters, and altitude range is 0.45~0.6 meter.
4. the anti-fluidisation lightweight construction of ballast bed is had in High-speed Railway Bridges according to claim 1, it is characterised in that：It is upper and lower
Row has the extruded sheet between ballast bed to be bonded on floorings, and the extruded sheet between railway roadbed and anti-collision wall is bonded on anti-collision wall.
5. the anti-fluidisation lightweight construction of ballast bed is had in High-speed Railway Bridges according to claim 1, it is characterised in that：Positioned at bridge
The bottom of the extruded sheet at the discharge opening of face offers the duct for draining.
6. the anti-fluidisation lightweight construction of ballast bed is had in High-speed Railway Bridges according to claim 1, it is characterised in that：High-speed iron
Road and bridge, face set double drainage slope, and the gradient is 2%, and the seam crossing of the extruded sheet carries out water-proofing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621206667.8U CN206204764U (en) | 2016-11-09 | 2016-11-09 | There is the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621206667.8U CN206204764U (en) | 2016-11-09 | 2016-11-09 | There is the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206204764U true CN206204764U (en) | 2017-05-31 |
Family
ID=58753471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621206667.8U Expired - Fee Related CN206204764U (en) | 2016-11-09 | 2016-11-09 | There is the anti-fluidisation lightweight construction of ballast bed in a kind of High-speed Railway Bridges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206204764U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468892A (en) * | 2018-11-16 | 2019-03-15 | 西南交通大学 | A kind of track structure and its laying method |
| CN109468893A (en) * | 2018-11-19 | 2019-03-15 | 西南交通大学 | A kind of track structure laying method for having the tiny fragments of stone, coal, etc. and being combined without the tiny fragments of stone, coal, etc. |
| CN111523243A (en) * | 2020-04-29 | 2020-08-11 | 中国国家铁路集团有限公司 | Intelligent maintenance analysis system for ballast track bed |
| CN112281657A (en) * | 2020-10-21 | 2021-01-29 | 王志强 | Railway ballast groove mechanism on whole steel bridge deck of concrete system railway bridge |
-
2016
- 2016-11-09 CN CN201621206667.8U patent/CN206204764U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468892A (en) * | 2018-11-16 | 2019-03-15 | 西南交通大学 | A kind of track structure and its laying method |
| CN109468893A (en) * | 2018-11-19 | 2019-03-15 | 西南交通大学 | A kind of track structure laying method for having the tiny fragments of stone, coal, etc. and being combined without the tiny fragments of stone, coal, etc. |
| CN111523243A (en) * | 2020-04-29 | 2020-08-11 | 中国国家铁路集团有限公司 | Intelligent maintenance analysis system for ballast track bed |
| CN111523243B (en) * | 2020-04-29 | 2023-08-25 | 中国国家铁路集团有限公司 | Intelligent maintenance analysis system for ballast bed |
| CN112281657A (en) * | 2020-10-21 | 2021-01-29 | 王志强 | Railway ballast groove mechanism on whole steel bridge deck of concrete system railway bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |