CN107724188A - A kind of prefabricated floating plate railway roadbed vibrating isolation system - Google Patents
A kind of prefabricated floating plate railway roadbed vibrating isolation system Download PDFInfo
- Publication number
- CN107724188A CN107724188A CN201711212609.5A CN201711212609A CN107724188A CN 107724188 A CN107724188 A CN 107724188A CN 201711212609 A CN201711212609 A CN 201711212609A CN 107724188 A CN107724188 A CN 107724188A
- Authority
- CN
- China
- Prior art keywords
- railway roadbed
- floating plate
- support arm
- tunnel structure
- strip
- 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.)
- Pending
Links
- 238000007667 floating Methods 0.000 title claims abstract description 31
- 238000002955 isolation Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 238000012423 maintenance Methods 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000006978 adaptation Effects 0.000 claims abstract description 7
- 241001669679 Eleotris Species 0.000 claims abstract description 4
- 238000003032 molecular docking Methods 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005096 rolling process Methods 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
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
Abstract
The invention discloses a kind of prefabricated floating plate railway roadbed vibrating isolation system, including tunnel structure and some groups of floating plates, floating plate contiguous concatenation is a strip railway roadbed, and the strip railway roadbed is embedded in tunnel structure bottom, and strip railway roadbed is filled with wearable elastic layer with face piece on the inside of tunnel structure；The floating plate is the precast slab of groined type structure, the precast slab center offers the first maintenance groove of rectangular cross-section, along precast slab length to the short sleeper of spaced set in orientation, and its waist both sides is extended with connecting support arm, the connecting support arm both sides offer the U-lag of opening outwardly, its bottom is reserved with mounting groove, and adaptation is provided with channel-section steel in the U-lag, and offers through hole between the U-lag of both sides.The present invention is not only convenient for transporting, and is easy to be spliced in tunnel and maintenance, both can guarantee that travel safety, has higher vibration isolation capability again.
Description
Technical field
The present invention relates to urban rail transit technology field, and in particular to a kind of prefabricated floating plate railway roadbed vibrating isolation system.
Background technology
The floating plate railway roadbed vibrating isolation system of current vibration isolation capability most preferably cast in situs in urban track traffic, such as rubber
Glue floating plate railway roadbed and steel spring floating slab road bed etc..In order to ensure vibration isolating effect, their each piece of plank is all made very
Greatly and again, can only pouring molding at the scene.But there is the defects of speed of application is slow in cast in situs.It is not required in view of many sections
Vibration isolation amount that will be so big, the then road reduced some vibration isolation capabilities and walk prefabricated floating plate just turn into Chinese city rail in recent years
The study hotspot and emphasis in road traffic vibration isolation field.
Need to solve the problems, such as to include in the design of prefabricated floating plate：How the size of prefabricated board is designed, in order to which highway is transported
It is defeated, tunnel under Liftable, bend etc. can be crossed in tunnel；How tunnel basis simply pre-process in advance, so as to
Prefabricated board is installed；How prefabricated board to be spliced at the scene；How train cross force and prefabricated longitudinal resistance caused by is limited
Plate displacement problem etc..Around these problems, everybody is in energetically exploration solution method at present.
The content of the invention
The present invention solves the deficiencies in the prior art, there is provided a kind of prefabricated floating plate railway roadbed vibrating isolation system, structure design
Rationally, be not only convenient for transporting, and be easy to be spliced in tunnel, both can guarantee that travel safety, again have it is higher every
Shake ability.
The technical solution adopted in the present invention is：A kind of prefabricated floating plate railway roadbed vibrating isolation system, including tunnel structure with
Some groups of floating plates, floating plate contiguous concatenation are a strip railway roadbed, and the strip railway roadbed is embedded in tunnel structure bottom, and strip
The outline of railway roadbed and the inserted connection of tunnel structure bottom convex-concave, and strip railway roadbed be filled with face piece on the inside of tunnel structure it is resistance to
Grind elastic layer；The floating plate is the precast slab of groined type structure, and the precast slab center offers section
First for rectangle repairs groove, and along precast slab length to the short sleeper of spaced set in orientation, and its waist both sides extends
There is connecting support arm, the connecting support arm both sides offer the U-lag of opening outwardly, and its bottom is reserved with mounting groove, the U-lag
Interior adaptation is provided with channel-section steel, and offers through hole between the U-lag of both sides；The tunnel structure bottom is provided with draining along long to orientation
Groove, its medial surface is provided with horizontal shoulder block, the horizontal shoulder block outboard end is interval with longitudinal spacing boss；It is described prefabricated
Vibration pad is provided between tunnel structure upper base surface in the mounting groove of concrete slab.
Preferably, contiguous prefabricated concrete slab is spliced in one by connecting support arm, the channel-section steel docking of adjacent connecting support arm
After form a strip channel-section steel, the cross section that is provided with of adaptation is trapezoidal connector in the strip channel-section steel, and its connector passes through
Stay bolt through through hole is locked.
Preferably, Formation cross-section repairs groove for the second of rectangle on the inside of it after the adjacent connecting support arm docking.
It is further preferred that the first maintenance groove and the second maintenance groove are covered with cover plate.
Still more preferably, the edge of precast slab is provided with cover plate shoulder block on the outside of the connecting support arm.
Compared to prior art, the device have the advantages that：
1st, including some groups of floating plates, it is readily transported.
2nd, some groups of floating plate scenes are spliced into a strip railway roadbed, and outline and the tunnel structure of strip railway roadbed use convex-concave
Inserted connection, is easy to in-site installation.
3rd, vibration isolator is set in floating plate bottom, the length travel and upset displacement of the vibrating isolation system is effectively controlled, in length
Wearable elastic layer is filled between bar railway roadbed and tunnel structure medial surface, wearable elastic layer effectively controls the lateral displacement of prefabricated board,
Vibration isolator both has good vibration isolation capability, while and can guarantee driving safety with wearable elastic layer.
4th, the first maintenance groove and the second maintenance groove is set to be easy to maintenance, replaceable parts.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is present invention splicing decomposing state schematic diagram；
Fig. 3 is the tunnel structure schematic diagram for coordinating assembling with the present invention；
Fig. 4 is the present invention and tunnel structure confined state side schematic view；
Fig. 5 is the present invention and tunnel structure integral installation distribution structure schematic diagram.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of prefabricated floating plate railway roadbed vibrating isolation system, refers to Fig. 1 to Fig. 5, and for the ease of transporting, including some groups are floated
It is a strip railway roadbed to put plate floating plate contiguous concatenation, and the strip railway roadbed is embedded in the bottom of tunnel structure 16, and strip railway roadbed
Outline and the inserted connection of bottom convex-concave of tunnel structure 16, for the ease of scene splicing installation, floating plate is arranged to well word
The precast slab 1 of shape structure, while for the ease of maintenance, the center of precast slab 1 offers the of rectangular cross-section
One maintenance groove 2, grows to the short sleeper 3 of spaced set in orientation, in order to further be easy to live splicing along precast slab 1
Installation, connecting support arm 4 is extended with the waist both sides of precast slab 1, and the both sides of connecting support arm 4 offer the U-shaped of opening outwardly
Groove 5, its bottom are reserved with the mounting groove 6 of assembling vibration isolator 9, and adaptation is provided with channel-section steel 7, wherein channel-section steel 7 and U-lag in U-lag 5
5 adaptations are cast in one, and through hole 8 is offered between both sides U-lag 5, and through hole 8 can be not only used for lifting during installation, it can also be used to
To the jacking of railway roadbed during maintenance.In order to effectively control prefabricated board in lateral displacement, length travel and overturn displacement, both had
Good vibration isolation capability, while and can guarantee driving safety, it is provided between mounting groove 6 and the upper base surface of tunnel structure 16
Vibration isolator 9.Vibration isolator 9 effectively controls the length travel and upset displacement of the vibrating isolation system, and vibration isolator 9 is to determine vibration isolation capability
Core part, fatigue proof elastomeric material, such as natural rubber and polyurethane material etc. need to be used, in the present embodiment, preferably
Natural rubber.The bottom of tunnel structure 16 is provided with rhone 163, and horizontal shoulder block 161 and longitudinal spacing are provided with its side
Boss 162.Outside the precast slab 1 of horizontal shoulder block 161 and longitudinal spacing boss 162 and groined type on tunnel structure 16
Profile forms male-female engagement relation.In order to increase the vibration isolating effect of the vibrating isolation system, between strip railway roadbed and tunnel structure medial surface
Filled with wearable elastic layer 17；Specifically the vertical rails diatom of longitudinal spacing boss 162 spacing plane and precast slab 1 it
Between, and there is certain interval between the perpendicular of horizontal shoulder block 161 and precast slab 1, and fill in gap wear-resisting
Elastic layer 17, the preferred high rigidity elastic abrasion-proof material of its wearable elastic layer 17, and also the surface of wearable elastic layer 17 can also coat one
The rock wool of layer wearing layer or polyurethane material.Wearable elastic layer 17 effectively controls the lateral displacement of prefabricated board, vibration isolator 9 with it is wear-resisting
Elastic layer 17 both has good vibration isolation capability, while and can guarantee driving safety.
Please continue to refer to Fig. 2, contiguous prefabricated concrete slab 1 is spliced in one by connecting support arm 4, adjacent connecting support arm 4
Channel-section steel 7 dock after form a strip channel-section steel, the cross section that is provided with of adaptation is trapezoidal connector 11 in the strip channel-section steel,
Its connector 11 is locked by the stay bolt 12 through through hole 8.In the present embodiment, the connector 11 of trapezoid cross section is to transmit to carry
The core part of lotus, high intensity steel rolling can be used to manufacture.Stay bolt 12 is not subject to shearing force, and shearing force is entirely by connector
11 undertake, and stay bolt has only served the effect for compressing connector, thus do not have extra demand to stay bolt 12.
Referring to Fig. 5, in order to further be easy to repair, Formation cross-section is on the inside of it after the adjacent docking of connecting support arm 4
Second maintenance groove 13 of rectangle.First maintenance groove 2 and second repairs groove 12 and is covered with cover plate 14.It is easy to the lid of cover plate 14 simultaneously
Close, the edge 4 of the outside precast slab 1 of connecting support arm 4 is provided with cover plate shoulder block 15.Cover plate 15 must have electrical insulating property,
The preferential polypropylene material for using hard.
The present invention is further described,
In assembling, the present invention is also using parts such as conventional elastic washer, nut, wearable elastic parts.After installation,
Each cover plate is covered, is exactly fastener for installing and rail on this basis afterwards.
The present invention is not only convenient for transporting, and is easy to be spliced in tunnel and maintenance, both can guarantee that driving peace
Quan Xing, there is higher vibration isolation capability again.
Above-described embodiment, simply presently preferred embodiments of the present invention are not used for limiting the practical range of the present invention, thus it is all with
The equivalent variations that content described in the claims in the present invention is done, it all should be included within scope of the invention as claimed.
Claims (5)
- A kind of 1. prefabricated floating plate railway roadbed vibrating isolation system, it is characterised in that including tunnel structure (16) and some groups of floating plates, Floating plate contiguous concatenation is a strip railway roadbed, and the strip railway roadbed is embedded in tunnel structure (16) bottom, and strip railway roadbed is outer Profile and the inserted connection of tunnel structure (16) bottom convex-concave, and wear-resisting bullet is filled between strip railway roadbed and tunnel structure medial surface Property layer (17)；The floating plate is the precast slab (1) of groined type structure, and precast slab (1) center offers section For the first maintenance groove (2) of rectangle, grown along precast slab (1) to the short sleeper of spaced set in orientation (3), and its waist Both sides are extended with connecting support arm (4), and connecting support arm (4) both sides offer the U-lag (5) of opening outwardly, and its bottom is reserved There is mounting groove (6), be adapted in the U-lag (5) and channel-section steel (7) is installed, and through hole (8) is offered between both sides U-lag (5)；Tunnel structure (16) bottom is provided with rhone (163) along long to orientation, and its medial surface is provided with horizontal shoulder block (161), horizontal shoulder block (161) outboard end is interval with longitudinal spacing boss (162)；Vibration pad (9) is provided between the mounting groove (6) and tunnel structure (16) upper base surface of the precast slab (1).
- A kind of 2. prefabricated floating plate railway roadbed vibrating isolation system according to claim 1, it is characterised in that contiguous prefabricated coagulation Native plate (1) is spliced in one by connecting support arm (4), and a strip grooves are formed after channel-section steel (7) docking of adjacent connecting support arm (4) Steel, the cross section that is provided with of adaptation be trapezoidal connector (11) in the strip channel-section steel, and its connector (11) is by through leading to Stay bolt (12) locking in hole (8).
- A kind of 3. prefabricated floating plate railway roadbed vibrating isolation system according to claim 2, it is characterised in that the adjacent connection Formation cross-section repairs groove (13) for the second of rectangle on the inside of it after support arm (4) docking.
- A kind of 4. prefabricated floating plate railway roadbed vibrating isolation system according to claim 3, it is characterised in that first maintenance Groove (2) is covered with cover plate (14) with the second maintenance groove (12).
- A kind of 5. prefabricated floating plate railway roadbed vibrating isolation system according to claim 4, it is characterised in that the connecting support arm (4) edge of outside precast slab (1) is provided with cover plate shoulder block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212609.5A CN107724188A (en) | 2017-11-28 | 2017-11-28 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212609.5A CN107724188A (en) | 2017-11-28 | 2017-11-28 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107724188A true CN107724188A (en) | 2018-02-23 |
Family
ID=61219646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212609.5A Pending CN107724188A (en) | 2017-11-28 | 2017-11-28 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107724188A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360305A (en) * | 2018-04-27 | 2018-08-03 | 江苏振华轨道交通设备有限公司 | A kind of rail traffic vibration damping installation apparatus and installation method |
| CN108560330A (en) * | 2018-06-26 | 2018-09-21 | 青岛科而泰环境控制技术有限公司 | The scalable general railway roadbed of secondary pouring type and its construction method |
| CN108774921A (en) * | 2018-08-13 | 2018-11-09 | 中铁二院工程集团有限责任公司 | A kind of assembled fragment-free track slab |
| CN108774922A (en) * | 2018-08-13 | 2018-11-09 | 中铁二院工程集团有限责任公司 | A kind of assembled ballastless track system |
| CN114086434A (en) * | 2021-11-29 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Longitudinally-assembled prefabricated plate type track |
| CN114808555A (en) * | 2022-06-17 | 2022-07-29 | 中铁上海设计院集团有限公司 | Prefabricated frame plate and application method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110089991A (en) * | 2010-02-02 | 2011-08-10 | (주)신성엔지니어링 | Vibration-proof track for railroads and this construction technique |
| CN102912693A (en) * | 2012-11-13 | 2013-02-06 | 北京九州一轨隔振技术有限公司 | Floating track bed precast slab and construction method for precast slab assembled floating track bed |
| CN102926294A (en) * | 2012-11-13 | 2013-02-13 | 北京九州一轨隔振技术有限公司 | Novel precast slab assembled floating track bed |
| CN103669115A (en) * | 2013-11-27 | 2014-03-26 | 北京九州一轨隔振技术有限公司 | Floating way bed plate and vibration isolating system comprising same |
| CN103993529A (en) * | 2014-05-23 | 2014-08-20 | 洛阳双瑞橡塑科技有限公司 | Elastic limiting device of roadbed slab |
| CN106917328A (en) * | 2015-12-24 | 2017-07-04 | 中国铁建大桥工程局集团有限公司 | A kind of construction method of Subway track engineering floating plate monolithic roadbed track |
| CN209194247U (en) * | 2017-11-28 | 2019-08-02 | 西安卓控环保科技有限公司 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
-
2017
- 2017-11-28 CN CN201711212609.5A patent/CN107724188A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110089991A (en) * | 2010-02-02 | 2011-08-10 | (주)신성엔지니어링 | Vibration-proof track for railroads and this construction technique |
| CN102912693A (en) * | 2012-11-13 | 2013-02-06 | 北京九州一轨隔振技术有限公司 | Floating track bed precast slab and construction method for precast slab assembled floating track bed |
| CN102926294A (en) * | 2012-11-13 | 2013-02-13 | 北京九州一轨隔振技术有限公司 | Novel precast slab assembled floating track bed |
| CN103669115A (en) * | 2013-11-27 | 2014-03-26 | 北京九州一轨隔振技术有限公司 | Floating way bed plate and vibration isolating system comprising same |
| CN103993529A (en) * | 2014-05-23 | 2014-08-20 | 洛阳双瑞橡塑科技有限公司 | Elastic limiting device of roadbed slab |
| CN106917328A (en) * | 2015-12-24 | 2017-07-04 | 中国铁建大桥工程局集团有限公司 | A kind of construction method of Subway track engineering floating plate monolithic roadbed track |
| CN209194247U (en) * | 2017-11-28 | 2019-08-02 | 西安卓控环保科技有限公司 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360305A (en) * | 2018-04-27 | 2018-08-03 | 江苏振华轨道交通设备有限公司 | A kind of rail traffic vibration damping installation apparatus and installation method |
| CN108560330A (en) * | 2018-06-26 | 2018-09-21 | 青岛科而泰环境控制技术有限公司 | The scalable general railway roadbed of secondary pouring type and its construction method |
| CN108774921A (en) * | 2018-08-13 | 2018-11-09 | 中铁二院工程集团有限责任公司 | A kind of assembled fragment-free track slab |
| CN108774922A (en) * | 2018-08-13 | 2018-11-09 | 中铁二院工程集团有限责任公司 | A kind of assembled ballastless track system |
| CN114086434A (en) * | 2021-11-29 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Longitudinally-assembled prefabricated plate type track |
| CN114086434B (en) * | 2021-11-29 | 2023-11-28 | 中铁第四勘察设计院集团有限公司 | Prefabricated plate type rail longitudinally assembled |
| CN114808555A (en) * | 2022-06-17 | 2022-07-29 | 中铁上海设计院集团有限公司 | Prefabricated frame plate and application method thereof |
| CN114808555B (en) * | 2022-06-17 | 2023-11-28 | 中铁上海设计院集团有限公司 | Prefabricated frame plate and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107724188A (en) | A kind of prefabricated floating plate railway roadbed vibrating isolation system | |
| KR102011811B1 (en) | Method for Producing a Slab Trackway | |
| US9222225B2 (en) | Pre-stressed concrete track slab of slab-type ballast-less track | |
| KR100706786B1 (en) | Precast slab track system and it's construction method | |
| US6726116B2 (en) | Railway crossing structure | |
| CA2333559C (en) | Railway or tramway rail and rail fastening system | |
| US4905896A (en) | Railroad roadway for high speed rail-mounted vehicles | |
| KR102135562B1 (en) | Constrution Structure Of Embedded Rail Track System And Fixing Block For The Same | |
| CN206328642U (en) | A kind of board-like track structure of framework in tunnel | |
| JP2002227101A (en) | Sleeper-integrated concrete ballast structure for railway line | |
| KR20120039429A (en) | Precast rail slab for rail track and embedded railway track structure using the rail slab | |
| KR101131745B1 (en) | Rail track structure for tramcar | |
| KR101132952B1 (en) | Composite rail for tramcar and rail track using the rail | |
| CN209194247U (en) | A kind of prefabricated floating plate railway roadbed vibrating isolation system | |
| KR20130009391A (en) | Method for manufacturing concrete block for railway track and method for laying railway track using concrete block manufactured by the same method | |
| CN107805977A (en) | Elastic shoe and resilient sleeper-bearing component and non-fragment orbit for non-fragment orbit | |
| CN207567571U (en) | A kind of attachment device at plate stitch between adjacent floating plate | |
| KR102249391B1 (en) | Method for constructing Precast Concrete Driving Road Block with Rubber Wheel AGT | |
| CN110258633A (en) | A kind of Underground Station section of track well with prestressed concrete beam | |
| CN205188720U (en) | Be used for urban streetcar concrete separated rail fastening | |
| CN206385393U (en) | Non-fragment orbit | |
| KR20190124926A (en) | Precast Concrete Driving Road Block with Rubber Wheel AGT and Method for constructing this same | |
| CN204780515U (en) | Quick refill -unit in road and railroad crossing mouth road surface | |
| CN209722595U (en) | A kind of compound sleeper ballastless track structure | |
| CN209066192U (en) | Elastic long sleeper buried-type ballastless track structure on a kind of Railway Steel Truss Girder Bridges |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |
|
| RJ01 | Rejection of invention patent application after publication |