CN106702821B - A kind of precast track plate and its manufacturing method - Google Patents
A kind of precast track plate and its manufacturing method Download PDFInfo
- Publication number
- CN106702821B CN106702821B CN201710033487.7A CN201710033487A CN106702821B CN 106702821 B CN106702821 B CN 106702821B CN 201710033487 A CN201710033487 A CN 201710033487A CN 106702821 B CN106702821 B CN 106702821B
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- sleeper block
- precast track
- frame plate
- articulamentum
- 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.)
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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
- E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
-
- 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
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
-
- 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
- E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
-
- 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
-
- 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
- E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The present invention relates to a kind of precast track plate and its manufacturing methods.Wherein track plates include prefabricated frame frame plate, prefabricated sleeper block and articulamentum, wherein sleeper block is separate structure with frame plate, is mounted in the through-hole of the frame plate by articulamentum.The solution of the present invention can greatly improve the production chains of track plates, greatly reduce construction site workload, improve construction precision and efficiency, and provide certain damping property as needed.
Description
Technical field
The present invention relates to a kind of urban track traffic track structure and vibration control field more particularly to a kind of prefabricated rails
Guidance tape and its manufacturing method.
Background technique
Currently, the orbit form that city rail industry uses, there is a cast-type railway roadbed and prefabricated railway roadbed, prefabricated railway roadbed by
In its factorial production, the advantages that construction efficiency can be improved, improve track geometry form precision, is increasingly favored.
Have several frequently seen prefabricated track plates on the market at present, some common precast track plates of overpass be mainly with
It is convenient and produce, non-prestressed structure to close linear motor installation tablet, durability is poor, renovated after failure, off-seam or cracking compared with
Difficulty, and without vibration-damping function.Some common prefabricated track plates of underground cable are non-prestressed structure, no vibration-damping function, isolation
There is ponding at the positions such as layer and positive stop lug boss.
Existing prefabricated floating plate track in the market, is designed specifically for vibration damping demand, there is vibration-damping function, and nothing is answered in advance
Plate can only be designed very thick and heavy by power structure, can not adapt to overpass and track structure height and load limits more location,
Site operation difficulty is also larger.
The prefabricated frame frame plate vibration damping combination track occurred in the market in recent years, including frame plate, cushion blocking, floating rail vibration damping
The structures such as fastener, clump weight have vibration-damping function, but construct complex.
Above-mentioned prefabricated board structure is straight line template, and reserved fastener nail hole position is also that linear arrangement is reserved in plate
On.When precast track plate is arranged in orbital curve section, the fastener position of fixed rail need to carry out position adjustment at the construction field (site),
With the flat linearity of accommodation curve type track.
The problems such as scene adjustment heavy workload, precision controlling difficulty is big, is easy accumulation line style error, driving is caused to have some setbacks,
Or it makes troubles to later period maintenance work.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of precast track plate is provided, it is characterised in that: including
Prefabricated frame frame plate, prefabricated sleeper block and articulamentum, wherein sleeper block is separate structure with frame plate, and sleeper block passes through articulamentum
It is arranged in the through-hole of the frame plate.
Further, it is characterised in that: the articulamentum is by that can pour and durability is good and the material of removal is facilitated to be made.
Further, it is characterised in that: the articulamentum is elastomer or inelastic body.
Further, it is characterised in that: the material of articulamentum can choose two-component proportion polyurethane, polyurea materials,
Pour the high-intensitive anchoring material such as type rubber, epoxy resin sand.
Further, it is characterised in that: further include cushion blocking, be elastic construction, be set to below track plates；Preferably,
Cushion blocking is dotted arrangement or arranged in strips, is positioned only at below sleeper block or is positioned only at below frame plate.
Further, it is characterised in that: limit hole is additionally provided on the frame plate, for being determined when mounting rail guidance tape
Position.
Further, it is characterised in that: be provided at least one of frame plate and the opposite face of sleeper block uneven
Structure, preferably broached-tooth design.
Further, it is characterised in that: paste or be coated with isolated material in track plates bottom and surrounding.
Further, it is characterised in that: be additionally provided with deformed bar on frame plate, the deformed bar along
Horizontal plane is laterally and/or longitudinally arranged.
A kind of manufacturing method of the described in any item precast track plates of above scheme, it is characterised in that: include the following steps,
1) basal layer is measured, obtains horizontal curve and vertical curve number track data；2) every piece of rail can be calculated by above-mentioned data
Position of the guidance tape difference sleeper block on track plates；3) position for setting sleeper block, is then filled out between in-orbit bolster and frame plate
Build the fixed material of cast-in-place articulamentum.
Further, it is characterised in that: for being arranged in plane curve and vertical curve or superrelation on curve along the rail at the section of slope
Guidance tape, it is in the arrangement of required shaped form that every piece of sleeper block need to be made by adjusting the positional relationship of sleeper block and frame plate.
Scheme of the invention has the effect that
1) frame plate is prestressed structure, and track capacity is strong, long service life.
2) batch production Prefabrication, sleeper spacing can be customized according to route actual conditions, and the scene of reduction adjusts rail with workload,
Track geometry precision is greatly improved, and then promotes travel safety, comfort.
3) cushion blocking under arranging plate can be determined whether according to the demand of vibration damping, meet vibration damping location and non-vibration damping location not
Same demand.
4) present invention can greatly reduce construction site workload, improve construction efficiency, greatly improve the production of track plates
Precision.
5) track plates structure, removable parts sleeper block or maintenance as the present invention or padded adjustment track plates are high
It is simple to operate when spending.And horizontal position and height of the sleeper block in through-hole can be adjusted flexibly, and adapt to the tunnel at scene
Bridge construction error and the inclination of realization curve and the adjustment of curve vector distance.Moreover, the height by sleeper block adjusts come fine-tuning rail
The height in road, for basis, the manufacture of frame plate, construction precision require do not have to it is too high, saved cost.
Detailed description of the invention
Fig. 1 is track plates plan view of the present invention.
Fig. 2 is another track plates plan view of the present invention.
Fig. 3 is another track plates plan view of the present invention.
Fig. 4 is track plates section plan of the present invention, wherein a) in cushion blocking be only positioned at below sleeper block；B) cushion blocking in
To below frame plate；C) cushion blocking is located at the entire lower section of track plates in.
Fig. 5 is the track plates sectional view that track plates straightway of the present invention is arranged without superelevation.
Fig. 6 is the track plates sectional view that track plates curved section of the present invention is arranged without superelevation.
Fig. 7 is the connection structure sectional view between frame plate and sleeper block of the present invention.
Fig. 8 is that another program of the present invention cuts open tracing.
Specific embodiment
In order to make those skilled in the art better understand the present invention, the present invention is made with implementation method with reference to the accompanying drawing
It is described in further detail.
Referring to shown in Fig. 1-8, prefabricated track plates of the invention include prefabricated frame plate 1, and prefabricated sleeper block 2 connects
Connect layer 3 and cushion blocking 4.
Wherein frame plate 1 uses high-precision template Prefabrication, is prefabricated with through-hole 5 and limit hole 6 thereon, wherein through-hole 5
For sleeper block to be arranged, limit hole 6 is used to be positioned when mounting rail guidance tape, and quantity, position, shape are different, can be set
Among frame plate and/or both ends, shape can be oblong, round rectangle, fillet polygon and the shape half or
Irregular shape etc., and 6 shape of limit hole, the size on a block frame plate can be the same or different.Such as Fig. 2 institute
Show, the two and half rectangle limit holes 9 at both ends can also be used using two limit holes 6 among frame plate 1,
It can be as shown in figure 3, using the form etc. of fillet limit hole 10 in the quadrangle of frame plate 4, these different form limit holes can be with
It is applied in combination.
Prefabricated sleeper block 2 may be provided in the through-hole 5 of frame plate 1, and the shape of shape and through-hole 5 is adapted, such as
Rectangle ellipse etc., size are less than through-hole 5, are provided with the nail hole 7 of trapped orbit.
Prefabricated sleeper block 2 is connected in such a way that the side of sleeper block 2 is connect by articulamentum 3 with the medial surface of through-hole 5
With frame plate 1, wherein articulamentum 3 is by can pour and the material of removal is facilitated to be made.
The adjustment of rail down space is rebuild or cooperated to such track plates structure by needs are destroyed in settlement after construction sleeper block,
When needing replacing part sleeper block or maintenance or padded adjustment track plates height, since sleeper block 2 is only in surrounding and frame
Plate 1 connects, and does not connect below, therefore, only need to 3 sliding trackle of articulamentum be repaired or be padded after taking out old sleeper block
Height gets well the sleeper block more renewed, then pour connecting material after its solidification after track can restore to use, it is simple to operate.And
And since sleeper 2 and frame plate 1 are separate structure, and position can be adjusted in the through-hole 5 of frame plate 1, so that sleeper block is logical
Horizontal position in hole and height can according to curve and superelevation tilt adjustments be adjusted flexibly and sleeper and track
Gap between plate can do do greatly it is small, adapt to scene tunnel bridge construction error and realize curve inclination and curve vector distance tune
It is whole.
And since height of the sleeper block 2 in through-hole 5 is adjustable, and then can be adjusted by the height of sleeper block 2 come micro-
The height of track is adjusted, in this way, requiring to have saved cost without too high for basis, the manufacture of frame plate, construction precision.
Wherein articulamentum 3 can be elastomer (when needing vibration damping) or rigid body (when not needing vibration damping), the material of articulamentum 3
The polyurethane material matched using the two-component of specific proportions, polyurethane material is good in two-component mixing initial flux, can have
Effect filling gap, after pouring can quick solidification within a short period of time, reach very high strength.Material after solidification can effectively ensure that rail
It is formed between bolster and frame plate securely whole.It is elasticity or rigid that filling material, which can be set, and polyureas etc. can also be used
Material pours type rubber, epoxy resin mortar high intensity anchoring material etc..When use elastic connection layer material, track plates with
Train load is producible shear-deformable when vibrating, and provides certain elastic shear rigidity, articulamentum can have certain vibration damping
Effect.
To the stress of articulamentum, illustrate by taking subway A type train as an example.Its axis weight 160kN, the heavy 80kN of unilateral wheel, considers dynamic
Carry coefficient 1.5, unbalance loading coefficient 1.15, then 1.15 × 1.5 × 80=138kN of load under single-wheel.That relatively guards thinks this
Load all acts on single sleeper block under single-wheel, i.e., the connecting material that single sleeper block periphery one is enclosed bears this concentration
Power.Sleeper block periphery connecting material minimum thickness 160mm, minimum perimeter polygon 1200mm, then the shear stress on sleeper block periphery is maximum
Value:
That is shear stress maximum value is less than 1.0MPa.
Dual-component polyurethane can be used in filling material, is usually made of the first and second two components, component A (main component) with
Based on hydroxyl, component B (curing agent) is the component rolled into a ball containing free isocyanate groups.Two kinds of components are mixed in a certain ratio, and are cut
Cutting breakdown strength generally can reach 10~20MPa.
Polyureas can also be used in filling material, by isocyanate component (component A) and amino-compound component (abbreviation B group
Part) react a kind of substance generated.Component A therein can be monomer, condensate, the derivative of isocyanates, prepolymer
And semi-prepolymer, what B component must be made of Amino End Group resin and Amino End Group chain extension base.It can pass through the ratio of different components
Allotment can make articulamentum become rigid connection or elastic connection.Its shear strength can reach 10MPa or more.
The shear strength for pouring type resin or high loudness anchoring material easily reaches 1MPa or more, to sum up these materials
Realization is reliably connected that there is no problem.Cushion blocking 4 is elastic construction, is set to below track plates, can be covered comprehensively or in dotted cloth
It sets or arranged in strips.As shown in fig. 4 a, cushion blocking 4 is positioned only at the lower section of sleeper block 2, and in Fig. 4 b, cushion blocking 4 is positioned only at frame
Below frame plate 1, the lower section of entire track plates is arranged in cushion blocking 4 in Fig. 4 c.Certainly, if being designed as non-vibration-damping function track plates
When, elastic damping pad 4 can also save.
In addition, being not shown in the figure, isolated material is also pasted or sprays in track plates bottom and surrounding, construction site no longer needs to
It does and is isolated, isolated material is the effect for having both elasticity, insulating and damping with the comparable permanent material of 4 performance of elastic cushion.
As shown in fig. 7, it is stronger to make to connect between frame plate 1 and sleeper block 2, it can be by the phase of frame plate 1 and sleeper block 2
The upper rough structure 8 of setting at least one of opposite, then cast-in-place articulamentum 3 is filled therebetween, the rough structure 8
Be conducive to increase attachment force.In preferred scheme rough knot can be respectively provided on the opposite face of frame plate 1 and sleeper block 2
Structure 8.In preferred scheme, which is saw-tooth-type structures 8, constitute each tooth two of the zigzag structure
Side (top margin, bottom edge) is structure obliquely for horizontal line, and top margin is less than relative to horizontal angle
Bottom edge is relative to horizontal angle.Test discovery, fills up when such structure filling that speed is fast, is not likely to produce gap, and
Stress is preferable, and attachment force is strong.
As shown in figure 8, at least one side of sleeper block 2 can be oblique in the track plates structure of a preferred embodiment of the invention
Face structure, corresponding 5 corresponding surface of through-hole is also bevel structure.In such structure, i.e., it can easily cut articulamentum 3 and carry out more
The work such as maintenance are changed, also, articulamentum is not the power undertaken in a manner of shearing force merely between sleeper block 2 and frame plate 1, and
It is to have a vertical stress component to inclined-plane.Under same case, the shearing force that bevel structure receives articulamentum 3 is with small, it is not easy to
Damage improves bonding strength.In addition, there is also rough structures for sleeper block 2 and the opposite face of frame plate 1 in Fig. 8, especially
It is zigzag structure shown in Fig. 7, to improve the attachment force between sleeper block 2 and frame plate 1.
In addition, to reinforce the intensity of track plates, preventing as shown, be additionally provided with deformed bar on frame plate 1
Cracking.The deformed bar is laterally and/or longitudinally being arranged along horizontal plane.
Illustrate the manufacturing process of track plates of the present invention with reference to the accompanying drawing.
1) under tunnel or high bridge structure and track after basal layer construction, live route survey is carried out, obtains flat song
Line and vertical curve number track data.
2) the different sleeper blocks 2 of every piece of track plates (especially at horizontal curve section) can be calculated on track plates by above-mentioned data
Position.
3) position of sleeper block 2 is set according to orbital measurement data using intelligent positioning mechanical equipment in factory, then
The fixed material of cast-in-place articulamentum 3 is filled between in-orbit bolster 2 and frame plate 1.Filling connection can be done in factory, can also root
It is done at the construction field (site) according to condition.
4) for be arranged in plane curve, vertical curve or superrelation on curve along slope Duan Chu, or combinations thereof track plates, need to pass through
The level and/or vertical position relationship of adjustment sleeper block and frame plate make every piece of sleeper block be in the arrangement of required shaped form.Example
Such as, for the track plates at curved section, arrangement of curves is pressed in 7 position of nail hole thereon, and some places also need to do slacking of gauge processing.
The requirement specifically arranged in factory according to curved section arranges the curved type of every piece of sleeper block, as shown in figure 5, bend
Locate (outside) height on the right side of track plates, which has to the right centainly partially relative to the right side rail bolster 2 of horizontal position
It moves, to increase spacing, at this point, pre-position can be placed on sleeper block 2, wherein between the left side of sleeper block 2 and frame plate 1
Away from right side spacing (articulamentum 3 thickness in left side is greater than 3 thickness of right side articulamentum) is greater than, then, then in frame plate 1 and sleeper block 2
Between gap in fill cast-in-place 3 material of articulamentum.Equal articulamentums 3 can be used after solidifying.For the track plates of vertical curve section
Or vertical curve combines the track plates at position with other curved sections, sleeper block is as desired relative to frame plate in vertical direction
Adjust position.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.In addition, although using some specific terms in this specification, these terms are only
For convenience of explanation, it does not limit the present invention in any way.
Claims (11)
1. a kind of precast track plate, it is characterised in that: including prefabricated frame frame plate, prefabricated sleeper block and articulamentum, wherein prefabricated rail
Bolster and prefabricated frame frame plate are separate structure, and prefabricated sleeper block is arranged in the through-hole of the prefabricated frame frame plate by articulamentum,
Wherein, articulamentum by the medial surface of the side of prefabricated sleeper block and through-hole connection by way of connect prefabricated sleeper block with it is prefabricated
Frame plate, wherein the through-hole is the hole for penetrating through the prefabricated frame frame plate upper and lower surface, the prefabricated sleeper block only surrounding with
The connection of prefabricated frame frame plate, and below due to for the hole on prefabricated frame frame plate so do not connect with prefabricated frame frame plate, wherein described in
Prefabricated at least one side of sleeper block is bevel structure, and corresponding through-hole corresponding surface is also bevel structure；Prefabricated frame frame plate and pre-
It is provided with broached-tooth design at least one of opposite face of sleeper block processed, the composition of the broached-tooth design is the top margin of each tooth, bottom
While being structure obliquely for horizontal line, and top margin is less than bottom edge relative to level relative to horizontal angle
The angle of line；The articulamentum thickness on the prefabricated sleeper block periphery is more than or equal to 160mm, and perimeter is more than or equal to 1200mm；It is described
Articulamentum is by that can pour and durability is good and the material of removal is facilitated to be made.
2. precast track plate according to claim 1, it is characterised in that: the articulamentum is elastomer or inelastic body.
3. precast track plate according to claim 1, it is characterised in that: the material of articulamentum is selected from high-intensitive anchoring material
Material.
4. precast track plate according to claim 3, it is characterised in that: the high intensity anchoring material is two-component proportion
Polyurethane, polyurea materials, pour type rubber or epoxy resin sand.
5. precast track plate according to claim 1-4, it is characterised in that: further include cushion blocking, for elasticity
Structure is set to below precast track plate.
6. precast track plate according to claim 5, it is characterised in that: the cushion blocking is dotted arrangement or strip cloth
It sets, is positioned only at below prefabricated sleeper block or is positioned only at below prefabricated frame frame plate.
7. precast track plate according to claim 1-4, it is characterised in that: also set up on the prefabricated frame frame plate
There is limit hole, being positioned when for installing precast track plate.
8. precast track plate according to claim 1-4, it is characterised in that: in precast track plate bottom and surrounding
Paste or be coated with isolated material.
9. precast track plate according to claim 1-4, it is characterised in that: be additionally provided on prefabricated frame frame plate
Deformed bar, the deformed bar are laterally and/or longitudinally arranged along horizontal plane.
10. a kind of manufacturing method of such as described in any item precast track plates of claim 1-9, it is characterised in that: including as follows
Step,
1) basal layer is measured, obtains horizontal curve and vertical curve number track data；
2) position of the prefabricated sleeper block of difference of every piece of precast track plate on precast track plate is calculated by above-mentioned data；
3) position for setting prefabricated sleeper block, then fills cast-in-place articulamentum between prefabricated sleeper block and prefabricated frame frame plate and fixes
Material.
11. the manufacturing method of precast track plate according to claim 10, it is characterised in that: for being arranged in plane curve
And vertical curve or superrelation on curve be along the precast track plate at the section of slope, it need to be by adjusting the position of prefabricated sleeper block and prefabricated frame frame plate
Relationship makes every piece of prefabricated sleeper block be in the arrangement of required shaped form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033487.7A CN106702821B (en) | 2017-01-16 | 2017-01-16 | A kind of precast track plate and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033487.7A CN106702821B (en) | 2017-01-16 | 2017-01-16 | A kind of precast track plate and its manufacturing method |
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| Publication Number | Publication Date |
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| CN106702821A CN106702821A (en) | 2017-05-24 |
| CN106702821B true CN106702821B (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710033487.7A Active CN106702821B (en) | 2017-01-16 | 2017-01-16 | A kind of precast track plate and its manufacturing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190584B (en) * | 2017-07-10 | 2023-03-10 | 中铁第四勘察设计院集团有限公司 | Assembled limiting structure for ballastless track and ballastless track with same |
| CN109112901A (en) * | 2018-09-14 | 2019-01-01 | 同济大学 | A kind of preformed rubber concrete vibration reducing track plate |
| CN110424194A (en) * | 2019-08-26 | 2019-11-08 | 中铁二院工程集团有限责任公司 | The prefabricated ballast bed structure of vibration isolator and its construction method on a kind of bridge |
| CN112523012A (en) * | 2020-12-29 | 2021-03-19 | 北京九州一轨环境科技股份有限公司 | Prefabricated vibration-damping ballast bed |
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| EP0603927A2 (en) * | 1992-12-21 | 1994-06-29 | COOPSETTE S.c.r.l. | Superstructure assembly with rail support blocks located transversally in longitudinal housings with interposition of flexible components |
| FR2731238B1 (en) * | 1995-03-02 | 1997-05-30 | Vagneux Traverses Beton | PROCESS FOR LAYING A RAILWAY AND PREFABRICATED SLAB FOR THE IMPLEMENTATION OF THIS PROCESS |
| CN2866579Y (en) * | 2006-01-23 | 2007-02-07 | 中铁八局集团有限公司 | Insulating prestressing frame railway plate |
| CN203755091U (en) * | 2014-01-27 | 2014-08-06 | 中南大学 | Thickened framed ballastless track slab |
| 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 |
| CN204185728U (en) * | 2014-09-23 | 2015-03-04 | 中铁二院工程集团有限责任公司 | Ballast bed of track regulation repair structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203284697U (en) * | 2013-03-22 | 2013-11-13 | 北京易科路通铁道设备有限公司 | Novel elastic short rail bearing for rail traffic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0603927A2 (en) * | 1992-12-21 | 1994-06-29 | COOPSETTE S.c.r.l. | Superstructure assembly with rail support blocks located transversally in longitudinal housings with interposition of flexible components |
| FR2731238B1 (en) * | 1995-03-02 | 1997-05-30 | Vagneux Traverses Beton | PROCESS FOR LAYING A RAILWAY AND PREFABRICATED SLAB FOR THE IMPLEMENTATION OF THIS PROCESS |
| CN2866579Y (en) * | 2006-01-23 | 2007-02-07 | 中铁八局集团有限公司 | Insulating prestressing frame railway plate |
| CN203755091U (en) * | 2014-01-27 | 2014-08-06 | 中南大学 | Thickened framed ballastless track slab |
| 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 |
| CN204185728U (en) * | 2014-09-23 | 2015-03-04 | 中铁二院工程集团有限责任公司 | Ballast bed of track regulation repair structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106702821A (en) | 2017-05-24 |
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