CN107217549A - The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure - Google Patents
The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure Download PDFInfo
- Publication number
- CN107217549A CN107217549A CN201710557894.8A CN201710557894A CN107217549A CN 107217549 A CN107217549 A CN 107217549A CN 201710557894 A CN201710557894 A CN 201710557894A CN 107217549 A CN107217549 A CN 107217549A
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- Prior art keywords
- fragment orbit
- connector
- basic
- basic plate
- connecting structure
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- 239000012634 fragment Substances 0.000 title claims abstract description 57
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 18
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 230000006872 improvement Effects 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E01B1/007—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with interlocking means to withstand horizontal forces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of basic board connecting structure of non-fragment orbit, it includes the first connector and the second connector, wherein the first connector is arranged at the end of the basic plate of the first non-fragment orbit, it includes having longitudinally projecting protuberance, and the longitudinal terminal surface of the protuberance is provided with bolt hole with the first connector surface insertion；Second connector is arranged at the end of the connection corresponding with the basic plate of the first non-fragment orbit of the basic plate of the second non-fragment orbit, offer depressed part that is along longitudinal direction and matching with the protuberance thereon, and the longitudinal terminal surface of the depressed part offers bolt hole with the second connector surface insertion.The invention also discloses the non-fragment orbit with above-mentioned attachment structure.The attachment structure of Optimal improvements is set on the basic plate of non-fragment orbit of the present invention, the problem of stress arch deformation easily occurs in basic plate connection can be not only overcome, and its is simple in construction, easy construction, and later stage dismounting and maintaining are simple and reliable.
Description
Technical field
The invention belongs to non-fragment orbit technical field, and in particular to a kind of basic board connecting structure of non-fragment orbit and with this
The non-fragment orbit of attachment structure.
Background technology
Non-fragment orbit refers to using the ballast bed track knot of the mass-type foundations such as concrete, asphalt substitution shot
Structure.Non-fragment orbit is compared with Ballast track, it is to avoid railway ballast splashing, and ride comfort is good, and stability is good, and service life is long, durability
Good, maintenance work is few, is employed more and more.
Plate-type ballastless track construction relates generally to track plates, asphalt mortar, bituminous mortar or self-compacting concrete filling layer, base or branch
Hold the structures such as layer, wherein base or supporting course uses concrete structure, the asphalt mortar, bituminous mortar that is layed on base or supporting course or from
Air-free concrete filling bed is the structure sheaf of ballastless track structure adjustment and supporting power transmission.
It is independent between every piece of track plates after laying installation in existing unit plate type ballastless track structure.It is not
Foot part is that after circuit runs a period of time, track plates can be peeling-off with packed layer, and the longitudinal end of track plates is also easy to produce
Warpage, this can undoubtedly be adversely affected to the life-span of the stationarity, comfortableness and track structure of train operation.
The platy ballastless track structure of longitudinal-connecting type is occurred in that in the prior art, such as disclosed in patent document 201695285U
Tensioning lock for longitudinal connection of ballastless track slab, its by from the longitudinally projecting reinforcing bar of track plates be attached locking realize longitudinal direction connect
Connect.But this linked vector graph is essentially identical to the mode of longitudinal prestressing reinforcing bar, connecting structure is complicated, and construction, which is got up, to be more tired of
It is trivial, and this be rigidly attached to TEMPERATURE FORCE it is excessive in the case of, track plates still suffer from the possibility of arch, and this is by track structure
Stationarity, the comfortableness of life-span and train operation are adversely affected.
To overcome drawbacks described above, the technical scheme for being directly bolted two basic plate longitudinal ends is presently, there are, for example
Patent document CN 201495454U disclose a kind of high-speed railway plate type ballastless track longitudinal connecting structure, and it is included along circuit
The track plates of longitudinal direction laying, the longitudinal end of track plates is arranged at intervals with least two groups pits and arc-shaped through-hole, arc-shaped through-hole
Two ends with being communicated in pit with the longitudinal terminal surfaces of track plates, are arranged at the arch screw bolt connection group in pit and arc-shaped through-hole respectively
Part is longitudinally connected by adjacent two pieces of track plates.This attachment structure can overcome be rigidly attached to TEMPERATURE FORCE it is excessive in the case of rail
The problem of guidance tape arches up, but need to open up the pit of certain depth at plate body two ends in this scheme, then by a groove
The bolt hole of insertion connection end end is opened up, on the one hand the extra pit that opens up needs to increase process on plate body, and increase manufacture is difficult
Degree and cost, pit therein is in order to meet opening up for bolt hole and being connected for bolt in addition, its inner wall size and shape
With high requirement so that manufacture difficulty is increased；Particularly, the setting of this pit causes rainwater, dirt etc. to deposit, and causes
Bolt connection is corroded or is difficult to dismount and repairs, so as to increase later maintenance maintenance difficulty.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of basic plate connection knot of non-fragment orbit
Structure and the non-fragment orbit with the attachment structure, its by the basic plate of non-fragment orbit set Optimal improvements attachment structure,
The problem of stress arch deformation easily occurs in basic plate connection can not only be overcome, and its is simple in construction, easy construction, the later stage
Dismounting and maintaining are simple and reliable.
To achieve the above object, according to one aspect of the present invention there is provided a kind of basic board connecting structure of non-fragment orbit, its
The first connector on the basic plate of the first non-fragment orbit to be connected including being arranged on, and to be connected second is arranged on without the tiny fragments of stone, coal, etc.
The second connector on the basic plate of track, wherein
First connector is arranged at the end of the basic plate of the first non-fragment orbit, and it is included with longitudinally projecting convex
Go out portion, and the longitudinal terminal surface of the protuberance is provided with bolt hole with the first connector surface insertion；
Second connector is arranged at the connection corresponding with the basic plate of the first non-fragment orbit of the basic plate of the second non-fragment orbit
End, depressed part that is along longitudinal direction and matching with the protuberance is offered thereon, and the longitudinal terminal surface of the depressed part is opened up
There is the bolt hole with the second connector surface insertion；In two basic plate ends splicing alignment, the protuberance and depressed part be just
With formed joggle and two bolts hole connection so as to bolt can the bolt hole of insertion two with the two basic plates that are connected.
As a further improvement on the present invention, the first connector upper surface and the upper surface of the second connector are higher by
Pass through slope transition, the one of the bolt hole between the upper surface of corresponding first basic plate and the second basic plate, two surfaces
End opening is arranged at the slope so that the opening is higher than basic plate upper surface.
As a further improvement on the present invention, the central axis of the opening on the slope is vertical with slope.
As a further improvement on the present invention, the bolt hole on the first connector and the second connector is arcuate socket,
And two bolt hole arc correspondence both to match to communicate so as to which arch screw bolt can the bolt hole of insertion two.
As a further improvement on the present invention, the arch screw bolt hole opened up on first connector and the second connector can
Think one or more.
As a further improvement on the present invention, the first connector on the basic plate end of first non-fragment orbit is one
Or it is multiple, accordingly the second connector on the basic plate end of second non-fragment orbit is also to be one or more.
As a further improvement on the present invention, it is provided with service sleeve in the arch screw bolt hole.
It is another aspect of this invention to provide that providing a kind of non-fragment orbit with above-mentioned attachment structure.
In general, by the contemplated above technical scheme of the present invention compared with prior art, with following beneficial effect
Really：
(1) attachment structure of the invention its by setting connector respectively in basic plate corresponding end to be connected, wherein dividing
Protuberance and depressed part are not provided with, joggle is formed when both match, and is attached by camber line bolt, so as to convenient
Implement the anchoring of two basic plates, and anchor force transmission is reasonable, the problem of overcoming track plates easy stress deformation；
(2) in attachment structure of the invention, bolt hole is arcuate socket, and the opening wherein positioned at track plates upper surface is high
In its surface of base, so that will not ponding or accumulation of mud, it is to avoid because hand hole ponding or dirt cause the corrosion of connection component；
(3) maintenance, Er Qiewei are easy in the basic plate longitudinal connection structure of non-fragment orbit of the invention, its easy construction
A variety of different dimension cells plates are assemblied to form there is provided possibility, requirement of the non-fragment orbit to stationarity, comfortableness is effectively met,
It is easy to construction and maintenance.
Brief description of the drawings
Fig. 1 is the schematic diagram of the basic board connecting structure of non-fragment orbit of the embodiment of the present invention；
Fig. 2 is the A-A profiles of the basic board connecting structure of non-fragment orbit in Fig. 1；
Fig. 3 is the dimensional structure diagram of the basic board connecting structure of non-fragment orbit of the embodiment of the present invention；
In all of the figs, same reference represents identical technical characteristic, is specially：The basic plates of 10-, 11- connects
Junctor, 12- arc-shaped through-holes, 13- service sleeves.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As long as in addition, technical characteristic involved in each embodiment of invention described below is each other not
Constituting conflict can just be mutually combined.
Fig. 1 is the schematic diagram of the basic board connecting structure of non-fragment orbit of the embodiment of the present invention；Fig. 2 is without tiny fragments of stone, coal, etc. rail in Fig. 1
The A-A profiles of the basic board connecting structure in road；Fig. 3 ties for the three-dimensional of the basic board connecting structure of non-fragment orbit of the embodiment of the present invention
Structure schematic diagram.
As shown in figure 1, the basic board connecting structure of the non-fragment orbit of a preferred embodiment of the present invention, it, which includes being arranged on, treats
Connector 11 on the basic plate 10 of a non-fragment orbit of connection, and it is arranged on the basic plate of another non-fragment orbit to be connected
Connector 11 on 10.
Connector is arranged at the end of the basic plate of non-fragment orbit, is preferably provided on the basic plate between two rails,
The basic plate end on the outside of rail can be arranged on, connector quantity can be one or two or other quantity.Connector
It is preferred that surface protrudes from basic plate upper surface, connector upper surface, by slope transition, can be plane with basic plate surface
Or curved surface.
As Figure 1-3, the upper surface of connector 11 is higher by the basic surface of plate 10, i.e. connector 11 and protruded above from basic plate 10
Set, the upper surface of connector 11 is with basic plate upper surface by sloped transition, and slope can be plane or curved surface, be easy to add
Work and subsequent construction operation.
As shown in Fig. 2 the longitudinal end of the connector 11 on wherein basic plate 10 is provided with along longitudinal direction in its longitudinal end
Raised protuberance, protrudes from basic plate end.In a preferred embodiment, protuberance is arranged on the bottom of connector 11.
Accordingly, the longitudinal end of the connector 11 of another basic plate 10 is provided with the depressed part matched with protuberance, depressed part
Longitudinal end is concordant with basic plate end, and depressed part is preferably provided at the bottom of connector 11.The longitudinal terminal surface of protuberance is preferably
Plane, correspondingly the longitudinal terminal surface of depressed part is also plane, and both can match splicing, but to protuberance and depressed part in the present invention
Longitudinal terminal surface shape and be not construed as limiting, it can be the arbitrary shape that can be mutually matched.
As shown in Figure 3, it is preferable that its longitudinal terminal surface of connecting portion where depressed part is concordant with basic plate longitudinal terminal surface, and convex
The longitudinal terminal surface for going out portion protrudes from corresponding basic plate longitudinal terminal surface, and it is used to stretch into depressed part and causes two basic plate end faces
And two connecting portion end face plane realize reliable splicing.
Arcuate socket is offered on the protuberance of connector 11, wherein arcuate socket one end perforate is arranged on protuberance longitudinal end
Portion, other end perforate is arranged on the slope between the upper surface of connector 11 and basic plate upper surface.In this way, a side
Face is easy to prepare and subsequent construction operation, and on the other hand even more important purpose is can to avoid ponding or dust stratification, and is caused
The corrosion problem of connection component.Two arcuate sockets are communicated in correspondence connection, thus bolt can the bolt hole of insertion two to be connected
Two basic plates.
Corresponding protuberance is matched with the bolt hole radian on depressed part on two connectors, can form one in connection
Overall arcuate socket, is easy to arch screw bolt to pass through both connecting anchoring.
In one embodiment, for convenience of the prefabricated construction of basic plate 10 and penetrating for arch screw bolt, in arc-shaped through-hole 12
Service sleeve 13.
In a preferred embodiment, the arch screw bolt hole opened up on connector can be one, or for two or with
On.
Based on the connection between the basic plate of non-fragment orbit to the mechanical property of non-fragment orbit, reliability and construction,
Convenience in terms of maintenance all has strong influence, and the present invention is using the attachment structure of this brand-new design, and it is by treating
The basic plate corresponding end of connection sets connector respectively, wherein being respectively arranged with protuberance and depressed part, is formed when both match
Joggle, and be attached by camber line bolt, so as on the one hand can conveniently implement the anchoring of two basic plates, only by matching
Clamping can reliable fit, then anchored and locked by bolt, anchor force is by the transmission of above-mentioned connecting portion, with protuberance and depression
Portion is transmitted to stress, and and then stress is transmitted by connecting portion so that whole track element plate stress transmission is reasonable, stable
Property is good, the problem of overcoming track plates easy stress deformation；On the other hand, wherein the opening positioned at track plates upper surface is higher than its base
Plinth surface, it, which is processed, prepares convenient and simple, and it is also very convenient to construct, and what is more important will not be accumulated at bolt hole
Water or accumulation of mud, can be avoided because hand hole ponding or dirt cause the corrosion of connection component.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (8)
1. a kind of basic board connecting structure of non-fragment orbit, it includes being arranged on the basic plate of the first non-fragment orbit to be connected
One connector, and the second connector being arranged on the basic plate of the second non-fragment orbit to be connected, wherein
First connector is arranged at the end of the basic plate of the first non-fragment orbit, and it includes having longitudinally projecting protrusion
Portion, and the longitudinal terminal surface of the protuberance is provided with bolt hole with the first connector surface insertion；
Second connector is arranged at the end of the connection corresponding with the basic plate of the first non-fragment orbit of the basic plate of the second non-fragment orbit
Portion, offers depressed part that is along longitudinal direction and match with the protuberance thereon, and the depressed part longitudinal terminal surface offer and
The bolt hole of second connector surface insertion；In two basic plate end splicing alignment, the protuberance just matches shape with depressed part
Into joggle and two bolts hole connection so as to bolt can the bolt hole of insertion two with the two basic plates that are connected.
2. the basic board connecting structure of non-fragment orbit according to claim 1, wherein, the first connector upper surface and
The upper surface of two connectors, which is higher by between the upper surface of corresponding first basic plate and the second basic plate, two surfaces, passes through slope
Face transition, the one end open of the bolt hole is arranged at the slope so that the opening is higher than basic plate upper surface.
3. the basic board connecting structure of non-fragment orbit according to claim 1, wherein, the center of the opening on the slope
Axis is vertical with slope.
4. the basic board connecting structure of non-fragment orbit according to claim 1, wherein, first connector and the second connection
The bolt hole on body is arcuate socket, and the arc correspondence of two bolts hole is communicated so as to arch screw bolt with causing both to match
Can the bolt hole of insertion two.
5. the basic board connecting structure of non-fragment orbit according to claim 4, wherein, first connector and the second connection
The arch screw bolt hole opened up on body is one or more.
6. the basic board connecting structure of non-fragment orbit according to any one of claim 1 to 5, wherein, described first without the tiny fragments of stone, coal, etc.
The first connector on the basic plate end of track is one or more, accordingly on the basic plate end of second non-fragment orbit
Second connector is also to be one or more.
7. the basic board connecting structure of non-fragment orbit according to any one of claim 1 to 5, wherein, the arch screw bolt
Service sleeve is provided with hole.
8. a kind of non-fragment orbit of the basic board connecting structure of non-fragment orbit with any one of claim 1 to 7.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557894.8A CN107217549A (en) | 2017-07-10 | 2017-07-10 | The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure |
| IL271899A IL271899B2 (en) | 2017-07-10 | 2018-06-14 | Ballastless track base plate connecting structure and ballastless track having same |
| SG11202000212VA SG11202000212VA (en) | 2017-07-10 | 2018-06-14 | Ballastless track base plate connecting structure and ballastless track having same |
| BR112020000527-4A BR112020000527B1 (en) | 2017-07-10 | 2018-06-14 | MOUNTED POSITIONING STRUCTURE ARRANGED BETWEEN A TRACK SLAB AND A BASE FOR POSITIONING THE TRACK SLAB AND THE BASE |
| PCT/CN2018/091272 WO2019011101A1 (en) | 2017-07-10 | 2018-06-14 | Ballastless track base plate connecting structure and ballastless track having same |
| PH12020500053A PH12020500053A1 (en) | 2017-07-10 | 2020-01-06 | Ballastless track base plate connecting structure and ballastless track having same |
| ZA2020/00706A ZA202000706B (en) | 2017-07-10 | 2020-02-03 | Ballastless track base plate connecting structure and ballastless track having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557894.8A CN107217549A (en) | 2017-07-10 | 2017-07-10 | The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107217549A true CN107217549A (en) | 2017-09-29 |
Family
ID=59953218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710557894.8A Pending CN107217549A (en) | 2017-07-10 | 2017-07-10 | The basic board connecting structure of non-fragment orbit and the non-fragment orbit with the attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107217549A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829338A (en) * | 2017-11-23 | 2018-03-23 | 中铁第四勘察设计院集团有限公司 | It is a kind of be used to non-fragment orbit is installed withhold anchor bolt and installation method |
| CN107858868A (en) * | 2017-10-31 | 2018-03-30 | 天津银龙预应力材料股份有限公司 | A kind of railcar track plates |
| WO2019011101A1 (en) * | 2017-07-10 | 2019-01-17 | 中铁第四勘察设计院集团有限公司 | Ballastless track base plate connecting structure and ballastless track having same |
| CN110184912A (en) * | 2019-06-04 | 2019-08-30 | 成都天府轨谷科技有限公司 | A kind of rail slab and girder system and production method |
| CN110184914A (en) * | 2019-06-25 | 2019-08-30 | 成都天府轨谷科技有限公司 | A kind of vertical connecting plate girder construction and production method |
| CN111287024A (en) * | 2020-02-21 | 2020-06-16 | 中铁第四勘察设计院集团有限公司 | Connecting device and ballastless track |
| CN113737575A (en) * | 2021-09-02 | 2021-12-03 | 中铁二院工程集团有限责任公司 | Ballastless track plate end damping clamping groove device |
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| CN201406612Y (en) * | 2009-04-16 | 2010-02-17 | 中铁二院工程集团有限责任公司 | Unit track plate capable of transversely adjusting prestressing force |
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| CN202325024U (en) * | 2011-11-25 | 2012-07-11 | 广东中亚铝业有限公司 | Gliding aluminium profile for heat-insulating doors and windows |
| CN202482710U (en) * | 2012-03-13 | 2012-10-10 | 隔而固(青岛)振动控制有限公司 | Floating ballast bed of prefabricated short plate |
| CN103835191A (en) * | 2012-11-21 | 2014-06-04 | 中铁第四勘察设计院集团有限公司 | Monolithic track bed track structure capable of being rapidly assembled |
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| CN201406612Y (en) * | 2009-04-16 | 2010-02-17 | 中铁二院工程集团有限责任公司 | Unit track plate capable of transversely adjusting prestressing force |
| CN201495454U (en) * | 2009-09-01 | 2010-06-02 | 中铁二院工程集团有限责任公司 | High-speed railway plate type ballastless track longitudinal connecting structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019011101A1 (en) * | 2017-07-10 | 2019-01-17 | 中铁第四勘察设计院集团有限公司 | Ballastless track base plate connecting structure and ballastless track having same |
| CN107858868A (en) * | 2017-10-31 | 2018-03-30 | 天津银龙预应力材料股份有限公司 | A kind of railcar track plates |
| CN107829338A (en) * | 2017-11-23 | 2018-03-23 | 中铁第四勘察设计院集团有限公司 | It is a kind of be used to non-fragment orbit is installed withhold anchor bolt and installation method |
| CN110184912A (en) * | 2019-06-04 | 2019-08-30 | 成都天府轨谷科技有限公司 | A kind of rail slab and girder system and production method |
| CN110184914A (en) * | 2019-06-25 | 2019-08-30 | 成都天府轨谷科技有限公司 | A kind of vertical connecting plate girder construction and production method |
| CN111287024A (en) * | 2020-02-21 | 2020-06-16 | 中铁第四勘察设计院集团有限公司 | Connecting device and ballastless track |
| CN111287024B (en) * | 2020-02-21 | 2021-10-12 | 中铁第四勘察设计院集团有限公司 | Connecting device and ballastless track |
| CN113737575A (en) * | 2021-09-02 | 2021-12-03 | 中铁二院工程集团有限责任公司 | Ballastless track plate end damping clamping groove device |
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Application publication date: 20170929 |
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