CN102220733A - Non-linear movable type combined system of ballast and damping fastener - Google Patents
Non-linear movable type combined system of ballast and damping fastener Download PDFInfo
- Publication number
- CN102220733A CN102220733A CN 201110102334 CN201110102334A CN102220733A CN 102220733 A CN102220733 A CN 102220733A CN 201110102334 CN201110102334 CN 201110102334 CN 201110102334 A CN201110102334 A CN 201110102334A CN 102220733 A CN102220733 A CN 102220733A
- Authority
- CN
- China
- Prior art keywords
- frame type
- bed plate
- ballast bed
- floating ballast
- railway roadbed
- 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.)
- Granted
Links
Images
Landscapes
- Railway Tracks (AREA)
Abstract
The invention belongs to the technical field of orbits, and discloses a non-linear movable type combined system of a ballast and a damping fastener, comprising a ballast, a steel rail (1) and a steel rail damping fastener (2); a frame type floating ballast board (3) is sectionally paved in a trough type ballast base (6); the trough type ballast base (6) is provided with a plurality of locating bosses (7); two ends of the frame type floating ballast board (3) are provided with locating notches (8) matched with the locating bosses (7) for locating; non-linear elastic ballast pads (4) are respectively arranged among the outer side surfaces, the bottom surface of the frame type floating ballast board (3) and the trough type ballast base (6); and a structure or an element for moving the frame type floating ballast board upwards is arranged on the frame type floating ballast board (3). The design of the ballast ensures that the longitudinal and transverse stability of the orbit and has relatively ideal damping performance; and the non-linear elastic ballast pads can be replaced or maintained so that the service life of the ballast is prolonged.
Description
Technical field
The invention belongs to the track technical field, mainly propose a kind of non-linear interchangeable railway roadbed and Damping fastening combined system.
Background technology
Along with the development and the development of technology of producing, show up prominently in novel track basis.One of them is exactly the railway roadbed integration.Mix with some glueing material (as the polymer of asphalt mortar, bituminous mortar, rapid setting cement mortar, some viscosity etc.) and broken stone metaling, water and be filled under the prefabricated road bed board, form the integration railway roadbed, both can improve speed of application, be not subjected to ambient influnences such as freezing, rainy many snow, can improve supporting capacity again, the deflection that makes railway roadbed than common railway roadbed reduce about 90%, circuit vertically and lateral resistance increase about 0.7～4 times, and drainage performance also improves greatly, have anti-dirty, antifreeze, grassless characteristics, quite be subjected to the favor of domestic and international railway engineering circle.But the railway roadbed of this form, the glueing material of perfusion and broken stone metaling mixture almost do not have elasticity, and the vibration and noise reducing that is far from being has the vibration and noise reducing effect; And railway roadbed and railway roadbed basis be bonded as one, and can't change separately or safeguard structures such as prefabricated road bed boards at all, at this moment will whole railway roadbed be changed, but it is big to change the workload of railway roadbed, and the cost of changing is higher.
Summary of the invention
For solving the problems of the technologies described above, the objective of the invention is to propose a kind of non-linear interchangeable railway roadbed and Damping fastening combined system.
The present invention adopts following technical scheme for finishing the foregoing invention purpose:
A kind of non-linear interchangeable railway roadbed and Damping fastening combined system mainly comprise railway roadbed, rail and steel rail vibration damping fastener; The grooved that build for reinforced-concrete on the railway roadbed basis of described railway roadbed, the floating ballast bed plate of frame type is " returning " type frame construction that the middle part has cavity; The floating ballast bed plate broken-up laying of described frame type is in grooved railway roadbed basis; Described grooved railway roadbed basis has a plurality of positioning boss, the floating ballast bed plate of described frame type both ends have locating notch, the locating notch that the floating ballast bed plate of described frame type both ends are had cooperates the formation buckle lock structure with the positioning boss that described grooved railway roadbed basis is had, guarantee that track vertically reaches horizontal stability; Fill the elastic buffer locator material between described locating notch and the positioning boss; Arrange nonlinear elasticity road mattress respectively between the lateral surface of the floating ballast bed plate of described frame type, bottom surface and the described grooved railway roadbed basis, described nonlinear elasticity road mattress is to lay continuously or intermittently; On the floating ballast bed plate of described frame type, have with so that structure or the element that the floating ballast bed plate of frame type moves up, in order to nonlinear elasticity road mattress is changed or safeguarded.
The described nonlinear elasticity road mattress that is positioned at floating ballast bed plate lateral surface of frame type and bottom surface constitutes the L type.
The described nonlinear elasticity road mattress that is positioned at the floating ballast bed plate lateral surface of frame type, bottom surface is structure as a whole.
The described nonlinear elasticity road mattress that is positioned at the floating ballast bed plate lateral surface of frame type, bottom surface is provided with respectively.
Described nonlinear elasticity road mattress is a sandwich construction.
The single face of described nonlinear elasticity road mattress has projection.
Described nonlinear elasticity road mattress two-sided has projection.
The projection that described nonlinear elasticity road mattress is had is cylindrical.
The projection that described nonlinear elasticity road mattress is had is a truncated cone.
The projection that described nonlinear elasticity road mattress is had is a taper type.
The locating notch at the floating ballast bed plate of described frame type both ends is semicircle.
The locating notch at the floating ballast bed plate of described frame type both ends is a rectangle.
Described usefulness is so that the element that the floating ballast bed plate of frame type moves up is the suspension hook that is preset on the floating ballast bed plate of frame type.
Described usefulness is so that the element that the floating ballast bed plate of frame type moves up is the draw ring that is preset on the floating ballast bed plate of frame type.
Described usefulness in order to cooperate with jack, moves up the floating ballast bed plate of frame type so that the element that the floating ballast bed plate of frame type moves up is metal sheet or the metal derby that is preset on the floating ballast bed plate of the frame type side, protrudes laterally.
The floating ballast bed plate body of described frame type has the boss that protrudes laterally, constitutes the structure that the floating ballast bed plate of frame type is moved up, and the floating ballast bed plate of frame type is moved up.
Preset the connector that connects with nut on the side of the floating ballast bed plate of described frame type, and be equipped with screw rod with nut, one end of described screw rod contacts in shop on the grooved railway roadbed basis and between screw rod and grooved railway roadbed basis and is equipped with metal sheet or metal derby, constitutes the structure that the floating ballast bed plate of frame type is moved up; Making nut drive the floating ballast bed plate of frame type by the external force rotating screw bolt moves up.
A kind of non-linear interchangeable railway roadbed and Damping fastening combined system that the present invention proposes, the locating notch that the floating ballast bed plate of frame type both ends are had cooperates the formation buckle lock structure with the positioning boss that grooved railway roadbed basis is had, fill the elastic buffer locator material between described locating notch and the positioning boss, guarantee that track vertically reaches horizontal stability; Arrange nonlinear elasticity road mattress respectively between the lateral surface of the floating ballast bed plate of frame type, bottom surface and the grooved railway roadbed basis, make to have comparatively desirable damping performance; The usefulness that is provided with on the floating ballast bed plate of frame type is so that structure or the element that the floating ballast bed plate of frame type moves up in order to the nonlinear elasticity beam is changed or safeguarded, prolonged the service time of railway roadbed.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation on grooved railway roadbed basis among the present invention.
Fig. 4 is the front view of the floating ballast bed plate of center posture of the present invention.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the front view of the another kind of structure of the floating ballast bed plate of center posture of the present invention.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is a kind of structural representation of nonlinear elasticity road mattress among the present invention.
Fig. 9 is second kind of structural representation of nonlinear elasticity road mattress among the present invention.
Figure 10, Figure 11, Figure 12 are the structural representation of nonlinear elasticity road mattress projection among the present invention.
Figure 13 is for making the move up schematic diagram of structure of the floating ballast bed plate of frame type among the present invention.
Figure 14 is for making the move up schematic diagram of element of the floating ballast bed plate of frame type among the present invention.
Figure 15 is for making the move up schematic diagram of structure of the floating ballast bed plate of frame type among the present invention.
Among the figure: 1, rail, 2, Damping fastening, 3, the floating ballast bed plate of frame type, 4, nonlinear elasticity road mattress, 6, grooved railway roadbed basis, 7, positioning boss, 8, locating notch, 9, cavity, 10, elastic buffer locator material, 12, suspension hook, 13, draw ring, 14, projection, 15, jack, 16, the built-in metal plate, 17, nut, 18, screw rod, 19, rubber coating, 20, braid, 21, covering layer, 22, interlayer, 23, damping layer.
The specific embodiment
With specific embodiment the present invention is illustrated in conjunction with the accompanying drawings, but the present invention not only is limited as following embodiment;
As shown in Figure 1 and Figure 2 a kind of non-linear interchangeable railway roadbed and Damping fastening combined system mainly comprise railway roadbed, rail 1 and steel rail vibration damping fastener 2; The grooved that build for reinforced-concrete on the railway roadbed basis 6 of described railway roadbed, the floating ballast bed plate 3 of frame type has " returning " type frame construction of cavity for the middle part; Floating ballast bed plate 3 broken-up layings of described frame type are in grooved railway roadbed basis 6; Described grooved railway roadbed basis 6 has a plurality of positioning boss 7, the floating ballast bed plate of described frame type both ends have locating notch 8, the locating notch 8 that the floating ballast bed plate of described frame type both ends are had cooperates the formation buckle lock structure with the positioning boss 7 that described grooved railway roadbed basis is had, guarantee that track vertically reaches horizontal stability; In conjunction with Fig. 2, among this embodiment, described positioning boss 7 is a rectangle, and the locating notch 8 that is positioned at the floating ballast bed plate of frame type both ends also is the rectangle of joining with positioning boss shape kissing; In positioning boss 7 and locating notch 8 formed spaces, fill elastic buffer locator material 10, described elastic buffer locator material 10 is a macromolecular material, as rubber, nylon, polyurethane etc., it also can be the elastic body of normal temperature cure, directly smear or be poured in the place, slit, also can be that in type elastomer element is directly filled, or be connected as a single entity with locating notch 8, positioning boss 7 by gluing, anchoring etc.
As Fig. 6, shown in Figure 7, provide the another kind of structural representation of the floating ballast bed plate of center posture of the present invention, the locating notch 8 that is positioned at bed board both ends, described road among this embodiment is for semicircle, the positioning boss 7 on corresponding grooved railway roadbed basis also is designed to cylindrical, positioning boss 7, locating notch 8 also can be for trapezoidal, do not provide positioning boss 7 in the accompanying drawings, locating notch 8 is trapezoidal structural representation.
Arrange nonlinear elasticity road mattress 4 respectively between the lateral surface of the floating ballast bed plate of described frame type, bottom surface and the described grooved railway roadbed basis, described nonlinear elasticity road mattress 4 is to lay continuously or intermittently, described nonlinear elasticity railway roadbed spacer has low load to hang down rigidity, the non-linear characteristics of the high rigidity of top load; The described nonlinear elasticity road mattress that is positioned at floating ballast bed plate lateral surface of frame type and bottom surface constitutes the L type, and among this embodiment, the described nonlinear elasticity road mattress that is positioned at the floating ballast bed plate lateral surface of frame type, bottom surface is formed in one.As shown in Figure 8, described nonlinear elasticity road mattress 4 comprises that mainly composite bed, the interlayer between two-layer composite bed 22 and single face that covering layer 21, two-layer composite material constitute have the damping layer 23 of projection 14; Every layer of composite bed comprises two-layer rubber coating 19 and the braid 20 between two-layer rubber coating.
As shown in Figure 9, provide the another kind of structural representation of nonlinear elasticity road mattress in this invention, the two-sided of the mattress of nonlinear elasticity road described in this embodiment 4 has protruding 14.
In conjunction with Figure 10, Figure 11, Figure 12, the projection that described nonlinear elasticity road mattress is had is cylindrical or truncated cone or taper type, also can be waveform or bar shaped, does not provide the schematic diagram of projection for waveform or bar shaped in the accompanying drawings.
On the floating ballast bed plate of described frame type, have with so that structure or the element that the floating ballast bed plate of frame type moves up, in order to the nonlinear elasticity beam is changed or safeguarded.
As shown in Figure 5, described usefulness is so that the element that the floating ballast bed plate of frame type moves up is the suspension hook 12 that is preset on the floating ballast bed plate of frame type.
As shown in Figure 7, described usefulness is so that the element that the floating ballast bed plate of frame type moves up is the draw ring 13 that is preset on the floating ballast bed plate of frame type.
As shown in figure 14, described usefulness is so that the element that the floating ballast bed plate of frame type moves up is metal sheet or the metal derby that is preset on the floating ballast bed plate of the frame type side, protrudes laterally, in order to cooperate with jack 15, the floating ballast bed plate of frame type is moved up, among this embodiment, the element that the floating ballast bed plate of frame type is moved up adopts metal derby 16.
As shown in figure 13, the floating ballast bed plate body of described frame type has the boss that protrudes laterally, constitutes the structure that the floating ballast bed plate of frame type is moved up, and under jack 15 effects the floating ballast bed plate of frame type is moved up.
As shown in figure 15, preset the connector that connects with nut 17 on the side of the floating ballast bed plate of described frame type, and be equipped with screw rod 18 with nut 17, one end of described screw rod 18 contacts in shop on the grooved railway roadbed basis and between screw rod 18 and grooved railway roadbed basis 6 and is equipped with metal sheet or metal derby, constitute the structure that the floating ballast bed plate of frame type is moved up, make nut 17 drive the floating ballast bed plate of frame type by external force rotating screw bolt 18 and move up.
As shown in Figure 1, the rail 1 of the floating ballast bed plate of associated frame members formula upper surface is provided with Damping fastening 2 respectively; The Damping fastening that is used for steel rail vibration damping is a mature technique, is extensive use of at present, and form of structure is more, and the Damping fastening 2 among the present invention can adopt the Damping fastening of existing structure, as disclosed Damping fastenings of patent such as ZL03231209.1, CN 2630303Y.
Claims (10)
1. non-linear interchangeable railway roadbed and Damping fastening combined system is characterized in that: mainly comprise railway roadbed, rail (1) and steel rail vibration damping fastener (2); The grooved that build for reinforced-concrete on the railway roadbed basis (6) of described railway roadbed, the floating ballast bed plate of frame type (3) have " returning " type frame construction of cavity for the middle part; The floating ballast bed plate of described frame type (3) broken-up laying is in grooved railway roadbed basis (6); Described grooved railway roadbed basis (6) has a plurality of positioning boss (7), the floating ballast bed plate of described frame type (3) both ends have locating notch (8), the locating notch (8) that the floating ballast bed plate of described frame type both ends are had cooperates the formation buckle lock structure with the positioning boss (7) that described grooved railway roadbed basis is had, guarantee that track vertically reaches horizontal stability; Fill elastic buffer locator material (10) between described locating notch (8) and the positioning boss (7); Arrange nonlinear elasticity road mattress (4) respectively between the lateral surface of the floating ballast bed plate of described frame type (3), bottom surface and the described grooved railway roadbed basis (6), described nonlinear elasticity road mattress (4) is to lay continuously or intermittently; On the floating ballast bed plate of described frame type (3), have with so that structure or the element that the floating ballast bed plate of frame type moves up, in order to nonlinear elasticity road mattress is changed or safeguarded.
2. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the described nonlinear elasticity road mattress (4) that is positioned at floating ballast bed plate lateral surface of frame type and bottom surface constitutes the L type.
3. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the described nonlinear elasticity road mattress (4) that is positioned at the floating ballast bed plate lateral surface of frame type, bottom surface is structure as a whole, or is provided with respectively.
4. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the single or double of described nonlinear elasticity road mattress (4) has projection (14).
5. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the projection (14) that described nonlinear elasticity road mattress (4) is had is for cylindrical, or truncated cone, or taper type.
6. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the locating notch (8) at the floating ballast bed plate of described frame type both ends is for semicircle, or rectangle.
7. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system, it is characterized in that: described usefulness is so that the element that the floating ballast bed plate of frame type moves up is the suspension hook (12) that is preset on the floating ballast bed plate of frame type, or draw ring (13).
8. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system, it is characterized in that: described usefulness is so that the element that the floating ballast bed plate of frame type moves up is metal sheet or the metal derby (16) that is preset on the floating ballast bed plate of the frame type side, protrudes laterally, in order to cooperate, the floating ballast bed plate of frame type is moved up with jack.
9. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system is characterized in that: the floating ballast bed plate body of described frame type has the boss that protrudes laterally, constitutes the structure that the floating ballast bed plate of frame type is moved up.
10. non-linear interchangeable railway roadbed according to claim 1 and Damping fastening combined system, it is characterized in that: preset the connector that connects with nut (17) on the side of the floating ballast bed plate of described frame type, and be equipped with screw rod (18) with nut (17), one end of described screw rod (18) contacts in shop on the grooved railway roadbed basis and between screw rod (18) and grooved railway roadbed basis (6) and is equipped with metal sheet or metal derby, constitutes the structure that the floating ballast bed plate of frame type is moved up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110102334 CN102220733B (en) | 2011-04-23 | 2011-04-23 | Non-linear movable type combined system of ballast and damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110102334 CN102220733B (en) | 2011-04-23 | 2011-04-23 | Non-linear movable type combined system of ballast and damping fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102220733A true CN102220733A (en) | 2011-10-19 |
| CN102220733B CN102220733B (en) | 2013-07-17 |
Family
ID=44777425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110102334 Active CN102220733B (en) | 2011-04-23 | 2011-04-23 | Non-linear movable type combined system of ballast and damping fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102220733B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243619A (en) * | 2013-04-27 | 2013-08-14 | 洛阳双瑞橡塑科技有限公司 | Slab-type replaceable combined ballast bed system and construction process |
| 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 |
| CN105256670A (en) * | 2014-07-25 | 2016-01-20 | 北京宝曼科技有限公司 | Sleeper with replaceable sleeper pad |
| CN106012695A (en) * | 2016-06-24 | 2016-10-12 | 北京交通大学 | Prefabricated elastic track bed structure with capacity of energy absorption |
| CN106948227A (en) * | 2017-05-09 | 2017-07-14 | 隔而固(青岛)振动控制有限公司 | Board-like easy care cushion blocking railway roadbed |
| CN108842522A (en) * | 2018-06-06 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of prefabricated floating plate track of adjustable damping grade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2767562B2 (en) * | 1995-03-07 | 1998-06-18 | 東京フアブリック工業株式会社 | Height adjustment support method of rail anti-vibration sleepers |
| WO2005098136A1 (en) * | 2004-04-08 | 2005-10-20 | Porr Technobau Und Umwelt Ag | Ballastless superstructure for railborne traffic |
| CN2818538Y (en) * | 2005-08-17 | 2006-09-20 | 铁道科学研究院金属及化学研究所 | Rubber railing cusion |
| CN1844578A (en) * | 2005-12-09 | 2006-10-11 | 中铁八局集团有限公司 | Vibration damping and sheet type ballastless track |
| CN202055117U (en) * | 2011-04-23 | 2011-11-30 | 洛阳双瑞橡塑科技有限公司 | Nonlinear replaceable road bed and vibration-damping fastener combined system |
-
2011
- 2011-04-23 CN CN 201110102334 patent/CN102220733B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2767562B2 (en) * | 1995-03-07 | 1998-06-18 | 東京フアブリック工業株式会社 | Height adjustment support method of rail anti-vibration sleepers |
| WO2005098136A1 (en) * | 2004-04-08 | 2005-10-20 | Porr Technobau Und Umwelt Ag | Ballastless superstructure for railborne traffic |
| CN2818538Y (en) * | 2005-08-17 | 2006-09-20 | 铁道科学研究院金属及化学研究所 | Rubber railing cusion |
| CN1844578A (en) * | 2005-12-09 | 2006-10-11 | 中铁八局集团有限公司 | Vibration damping and sheet type ballastless track |
| CN202055117U (en) * | 2011-04-23 | 2011-11-30 | 洛阳双瑞橡塑科技有限公司 | Nonlinear replaceable road bed and vibration-damping fastener combined system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243619A (en) * | 2013-04-27 | 2013-08-14 | 洛阳双瑞橡塑科技有限公司 | Slab-type replaceable combined ballast bed system and construction process |
| CN103243619B (en) * | 2013-04-27 | 2015-02-25 | 洛阳双瑞橡塑科技有限公司 | Slab-type replaceable combined ballast bed system and construction process |
| 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 |
| CN103993529B (en) * | 2014-05-23 | 2016-08-24 | 洛阳双瑞橡塑科技有限公司 | A kind of elastic limit device of road bed board |
| CN105256670A (en) * | 2014-07-25 | 2016-01-20 | 北京宝曼科技有限公司 | Sleeper with replaceable sleeper pad |
| CN106012695A (en) * | 2016-06-24 | 2016-10-12 | 北京交通大学 | Prefabricated elastic track bed structure with capacity of energy absorption |
| CN106948227A (en) * | 2017-05-09 | 2017-07-14 | 隔而固(青岛)振动控制有限公司 | Board-like easy care cushion blocking railway roadbed |
| CN108842522A (en) * | 2018-06-06 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of prefabricated floating plate track of adjustable damping grade |
| CN108842522B (en) * | 2018-06-06 | 2023-11-24 | 广州地铁设计研究院股份有限公司 | Prefabricated floating slab track with adjustable vibration reduction level |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102220733B (en) | 2013-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202055117U (en) | Nonlinear replaceable road bed and vibration-damping fastener combined system | |
| CN102220733B (en) | Non-linear movable type combined system of ballast and damping fastener | |
| CN103306169B (en) | Floating ballast bed plate end isolation mounting | |
| US9222225B2 (en) | Pre-stressed concrete track slab of slab-type ballast-less track | |
| CN201495454U (en) | High-speed railway plate type ballastless track longitudinal connecting structure | |
| CN103306168B (en) | A kind of prefabricated floating plate railway roadbed and construction method thereof | |
| CN203411863U (en) | Embedded rail | |
| CN203429513U (en) | Cavity filling part, and track fixing device in pedestal | |
| CN201883346U (en) | Prestressed concrete track slab of slab-type ballastless track | |
| CN202766969U (en) | Steel and wood combination bridge deck pavement structure with shear keys | |
| CN105926380A (en) | Limiting structure between terminal spine type rail bearing beam joints of single-line segment for medium-low-speed magnetic levitation traffic engineering low-arranged line | |
| CN104947566A (en) | Assembled grade crossing | |
| CN202830761U (en) | Railway steel truss girder bridge ballastless track laying structure | |
| CN202073037U (en) | Bridge ballastless track structure | |
| CN202000221U (en) | Ballastless track structure for steep slope subgrade | |
| CN201972070U (en) | Force transfer structure for concrete road surface expansion joint | |
| CN201610649U (en) | Ground network type integrated road bridge parking platform made of irons | |
| CN207176403U (en) | Elastic shoe and resilient sleeper-bearing component and non-fragment orbit for non-fragment orbit | |
| CN202830760U (en) | Railway steel truss girder bridge ballastless track laying structure | |
| CN205012221U (en) | Embedded track structure that is fit for medium and small span bridge | |
| CN205603974U (en) | Low circuit single line location support rail girder segment limit structure within a definite time that puts of well low -speed maglev traffic engineering | |
| CN202081383U (en) | Temporary support used in construction striding over existing line bridge | |
| CN213232971U (en) | A switch district track structure that is used for railway roadbed in switch district and has it | |
| CN209368600U (en) | Modern tram railway roadbed | |
| CN202194061U (en) | Combined bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |