CN207391939U - Plate-type ballastless railway roadbed - Google Patents
Plate-type ballastless railway roadbed Download PDFInfo
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- CN207391939U CN207391939U CN201721430606.4U CN201721430606U CN207391939U CN 207391939 U CN207391939 U CN 207391939U CN 201721430606 U CN201721430606 U CN 201721430606U CN 207391939 U CN207391939 U CN 207391939U
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Abstract
The utility model is related to plate-type ballastless railway roadbeds, belong to technical field of rail traffic.The problems such as which solving existing track plates and easily peeling-off filled layer under plate.The utility model includes substrate, and track plates are placed in above substrate, and filled layer under plate is equipped between track plates and substrate, position limiting structure is additionally provided between track plates and substrate, further includes anchor connection device, and the anchor connection device includes connector and anchoring piece；Anchoring piece is fixed in substrate；Connector one end is connected with track plates, and the other end is connected by anchoring piece with substrate.The utility model is simple in structure, and vibration and noise level are low, and vibration and noise reducing performance is good, and service life is long, can be widely applied in various ballastless track of high-speed railway circuits, has a vast market application prospect.
Description
Technical field
The utility model belongs to technical field of rail traffic, and in particular to one kind can prevent track plates from being adjusted with CA mortars
The plate-type ballastless railway roadbed that layer is removed.
Background technology
In recent years, with the rapid development of China express railway Line for Passenger Transportation, non-fragment orbit is with its precision height, speed of application
Soon, the advantages that stability is good, maintenance load is few, quality is easy to control, low cost, high overall economic efficiency, it is high at home and abroad
Be more and more widely used on fast railway, be laid with scope the bridge from beginning, gradually develop in Tunnel Engineering
Onto roadbed, and progressively widelyd popularize in inter-city passenger rail, Line for Passenger Transportation and high ferro.At present, using more main
Include the plate-type ballastless track of CRTSI, CRTSII and CRTSIII three types.The basic structure of these three types is from top to bottom
Including filled layer, substrate under rail, spring secures rail to sleeper, track plates, plate, in addition, being additionally provided with /V dress between track plates and substrate
It puts.Wherein, the main distinction and advantage of CRTSIII plate-types non-fragment orbit and the former two are：(1) layer material is filled under its plate
It is changed to by CA mortars before using self-compacting concrete, so as to simplify construction technology, reduces environmental pollution, reduce engineering
Investment；(2) CRTSIII plate-types non-fragment orbit coordinates the /V side of base groove using U-shaped muscle, self-compacting concrete under plate
Formula has completely abolished the positive stop lug boss of CRTSI templates and the end /V thorn of CRTSII templates, more succinct safety；(3) track plates
Change original non-shoulder plate to there is shoulder block plate, mating elasticity nonseparated rail fastening advantageously reduces orbit rigidity, improves track bullet
Property.But found during use, since high-speed railway vehicle road speed is fast, vibration is strong, thus under plate filled layer no matter
It is to select CA mortars or self-compacting concrete, after runing a period of time, due to vibrating, expanding with heat and contract with cold etc., rail all occurs
Guidance tape is removed with filled layer under plate, the situation of arch camber, and track plates are in vacant state after being partially stripped with filled layer under plate,
During follow-up operation, the track plates filled layer under crash panel that can sink repeatedly causes cracking to continue to develop to expand.Therefore, track plates and plate
After peeling-off, the globality of plate-type ballastless track will decline to a great extent lower filled layer, and track structure shakes during operation
Dynamic and radiated noise is stronger, not only influences the comfort of vehicle, and track structure service life is also resulted in it is many not
Profit influence, when serious even entail dangers to traffic safety, still without good repairing method speed limit etc. can only be taken passively to arrange at present
It applies.
In conclusion there is an urgent need to provide a kind of can effectively prevent that filled layer is peeling-off under track plates and plate in market
New-type plate ballastless track bed structure.
Utility model content
The purpose of this utility model is that solve the above problems, provide that a kind of globality is more preferable, can effectively avoid track
The plate plate-type ballastless railway roadbed peeling-off with filled layer under plate.
The utility model plate-type ballastless railway roadbed is achieved in that including substrate track plates are placed in above substrate, track plates
Filled layer under plate is equipped between substrate, position limiting structure is additionally provided between track plates and substrate, in addition, further including anchor connection dress
It puts, the anchor connection device includes connector and anchoring piece；Anchoring piece is fixed in substrate；Connector one end and track
Plate is connected, and the other end is connected by anchoring piece with substrate.
The set-up mode of the anchor connection device can be varied, can be arranged on the both sides of track plates, with connecting
It is inverted L shape structure that the anchoring otic placode of fitting connection, which is laterally inserted into track plates fixed or connector, from track plates upper end or rail
Track plates are fixed by the boss upper end that guidance tape side is set；Installation passage can also be set on track plates, it is right in substrate
Answer installation passage that anchoring piece is fixedly installed, connector exists through installation passage with the anchoring piece assembly connection being fixedly installed in substrate
Together.
In the utility model, the concrete form of connector can also be varied, for example, connector is included with pilot hole
Connecting plate, nut, the connecting bracket with connecting flange, equipped with mounting block connecting rod and equipped with internal thread or external screw thread
Connecting rod.Correspondingly, anchoring piece be equipped with for connector assembly connection threaded hole, stud, hook, with pilot hole
Otic placode, connecting flange, pre-buried channel flow or link.
The utility model plate-type ballastless railway roadbed, by adding anchor connection device in ballast bed system, utilizes anchor connection
Device makes track plates remain the state of close contact with filled layer under plate, can effectively avoid track plates and filled layer under plate
Between it is peeling-off, both made stripping that will not generate vacantly, thus the globality and security of ballast bed system can be effectively improved.
It is pointed out that the substrate described in the utility model is varied, can be way of concrete foundations or Steel Bridge
Steel Bridge Deck, such as welding hook can be mounted on Steel Bridge Deck, then with connector, it is only necessary to according to specific base
Bottom form is different, and select appropriate anchoring piece and substrate is fixedly connected with mode
It is to be particularly noted that due to being provided reliably using anchor connection device in the utility model plate-type ballastless railway roadbed
Connection, to ensure that filled layer under track plates and plate remains the state of close contact, do not depend under plate the viscosity of filled layer with
Track plates are bonded, and therefore, filled layer can be set using non-binding each other with track plates under plate, to facilitate the repair in later stage more
It changes, concrete mode can set isolation film etc. under plate between filled layer and track plates；In addition, under plate filled layer selection range
More extensively, such as filled layer can be made of high resiliency mortar, elastic damping pad or elastic damping block under plate, and that brings is excellent
Point is：(1) damping property can be preferably taken into account, it is horizontal to improve system vibration and noise reducing；(2) the various of selection advantageously reduces
Construction cost and reduction difficulty of construction；(3) China has a vast territory, and climate change is various, expands selection range and is more advantageous to improving
The applicability of the utility model plate-type ballastless railway roadbed；(4) facility is provided for the maintenance in later stage.
To sum up institute palm fibre, the utility model plate-type ballastless railway roadbed is simple in structure, and vibration and noise level are low, vibration and noise reducing
Can be good, service life is long, can be widely applied in various ballastless track of high-speed railway circuits, before having a vast market application
Scape.
Description of the drawings
Fig. 1 is one of structure diagram of the utility model plate-type ballastless railway roadbed.
Fig. 2 is the sectional view along A-A of Fig. 1.
Fig. 3 is the second structural representation of the utility model plate-type ballastless railway roadbed.
Fig. 4 is the third structural representation of the utility model plate-type ballastless railway roadbed.
Fig. 5 is the four of the structure diagram of the utility model plate-type ballastless railway roadbed.
Fig. 6 is the five of the structure diagram of the utility model plate-type ballastless railway roadbed.
Fig. 7 is the six of the structure diagram of the utility model plate-type ballastless railway roadbed.
Fig. 8 is the seven of the structure diagram of the utility model plate-type ballastless railway roadbed.
Fig. 9 is the B-B direction sectional view of Fig. 8.
Wherein：1. track plates；2. substrate；3. filled layer under plate；4. position limiting structure；5. anchoring piece；6. anchor otic placode；7. connect
Fitting；8. track structure；9. fastener I；10. gasket；11. fastener II；12. boss；13. installation passage.
Specific embodiment
Embodiment one
The utility model plate-type ballastless railway roadbed as shown in Figure 1 and Figure 2, including substrate 2, track plates 1 are placed in 2 top of substrate, rail
Filled layer 3 under plate is equipped between guidance tape 1 and substrate 2, filled layer 3 is specifically made of CA mortar materials under plate, track plates 1 and substrate
Position limiting structure 4 is additionally provided between 2, position limiting structure 4 is specially the boss with 2 integrated setting of substrate；Connect in addition, further including anchoring
Connection device, the anchor connection device include connector 7 and anchoring piece 5, specifically, connector 7 is the connection with pilot hole
Plate, anchoring piece 5 are the otic placode with pilot hole, and wherein anchoring piece 5 is fixed in substrate 2, and the side of track plates 1, which is fixed, to be set
Anchoring otic placode 6 is equipped with, connector 7 is connected by fastener I 9 with anchoring otic placode 6 and anchoring piece 5 respectively.
As depicted in figs. 1 and 2, in application, track structure 8 is fixed on track plates 1.The track structure
8 include the specific element such as rail, fastener system, railway rail pad, smaller due to being associated with the utility model of the utility model point,
It charts for convenience herein, does not show, illustrate hereby one by one.
The utility model plate-type ballastless railway roadbed, by adding anchor connection device in ballast bed system, utilizes anchor connection
Device makes track plates remain the state of close contact with filled layer under plate, can effectively avoid track plates and filled layer under plate
Between it is peeling-off, both made stripping that will not generate vacantly, thus the globality of ballast bed system can be effectively improved, and be conducive to carry
Comfortableness and security during high orbit car operation extend the service life of ballast bed system.The board-like nothing of the utility model
Ballast bed provides lasting pressing force using anchor connection device under track plates and plate between filled layer, track plates under plate
It is not easy to crack between filled layer, both make to crack, track plates are also remained with filled layer under plate under the action of pressing force
Gapless is in close contact, there is no hanging and impact of sinking during driving, crack propagation is slow, and vibration and noise will not be significantly raised,
Driving is influenced small.
The concrete form of position limiting structure 4 can also be varied in the utility model, except having mentioned and 2 one of substrate
Change outside the boss set, can also be the end /V thorn of CRTSII templates, can also realize good technique effect, it is still further not attached
Figure, also among the protection domain of the requires of the utility model.
It is to be particularly noted that the substrate described in the utility model is varied, it can be way of concrete foundations, also may be used
To be the Steel Bridge Deck of Steel Bridge, such as anchoring piece can be welded on Steel Bridge Deck, then assembly connection is carried out with connector, only
Need different according to specific substrate forms, select appropriate anchoring piece and substrate is fixedly connected with mode, can be real
Now same technique effect, also among the protection domain of the requires of the utility model, it is new that this feature is equally applicable to this practicality
The other embodiment of type, is described in this together, behind be not repeated.
The utility model plate-type ballastless railway roadbed, simple in structure, vibration and noise level are low, and service life is long, can be extensive
Applied in ballastless track of high-speed railway circuit, application prospect is had a vast market.
Embodiment two
Plate-type ballastless railway roadbed as shown in Figure 3, difference lies in the anchor connection device of this example, connect with embodiment one
Part 7 is specially the connecting bracket with connecting flange, is welded by connecting flange and channel steel, and main body is in inverted "L" shape, accordingly
, anchoring piece 5 is the connecting flange being fixed at using anchor rib in substrate 2, and connector 7 passes through fastener with anchoring piece 5
II 11 are fixed together, and the top of connector 7 is pressed on the top surface of track plates 1.
Technical solution described in this example has the advantages that similar to embodiment one, is not repeated herein.
Embodiment three
Plate-type ballastless railway roadbed as shown in Figure 4, the difference is that, track plates 1 are equipped with boss 12 with embodiment two；Anchor
7 one end are connected described in connected connection device and act on 12 surface of boss, and the other end is connected in by fastener II 11 and anchoring piece 5
Together, and then with substrate 2 it is connected；In addition, the elastic damping pad made of elastane of filled layer 3 is formed under plate, plate
Non-binding is set each other between lower filled layer 3 and track plates 1.
Compared with embodiment two, it is described in this example the advantages of technical solution, by setting boss 12 on track plates 1,
Anchor connection device is arranged at boss 12, is not take up the gauge space on 8 periphery of track structure, more compact structure will not
Track clearance is impacted, convenient for Maintenance and Repair of the later stage to track；In addition, in this example, using connector 7 with connection
The stent of flange carries out cross spacing as limiting device to track plates 1, without still further setting position limiting structure, entire railway roadbed system
The structure of system is simpler, convenient for construction, advantageously reduces construction cost；In addition, due to being made using elastic damping pad in this example
For filled layer under plate 3, therefore the damping property of system is outstanding, and vibration noise when can significantly reduce operation is horizontal.It is special
Not it is noted that the technical principle based on this example can be seen that due to being to pass through anchor in the utility model plate-type ballastless railway roadbed
The connection device offer pressing force that is connected remains the state of close contact to ensure track plates with filled layer under plate, does not depend under plate
The viscosity of filled layer is Nian Jie with track plates, and therefore, filled layer can be set using non-binding each other with track plates under plate, this knot
Structure greatly facilitates repair replacement of the later stage to filled layer under plate or track plates；Further, since filled layer can be with track under plate
Plate is set each other using non-binding, under plate the selection range of filled layer also more extensively, such as in this example under plate filled layer by bullet
Property cushion blocking form, selection range expansion carries the advantage that：(1) damping property can be preferably taken into account, raising system subtracts
It shakes noise abatement；(2) the various of selection advantageously reduces construction cost and reduces difficulty of construction；(3) China has a vast territory, weather
Change it is various, expand selection range be more advantageous to improve the utility model plate-type ballastless railway roadbed applicability；(4) it is the dimension in later stage
It repaiies maintenance and great convenience is provided.Technical principle based on this example, filled layer can also use other kinds of elastic damping under plate
Pad, such as rubber damper etc.；In addition, as a kind of special case, as shown in figure 5, filled layer 3 can also be by local setting under plate
Elastic damping block is formed；Filled layer can also use the other materials such as high resiliency mortar to form under certain plate, can play very well
Effect, it should be pointed out that when using the material of high resiliency mortar one kind, in order to realize under plate filled layer and track plates it
Between non-binding set, isolation film etc. under plate between filled layer and track plates can be set, be only described herein with word,
No longer attached drawing one by one, all among the protection domain of the requires of the utility model.
Example IV
The utility model plate-type ballastless railway roadbed as shown in Figure 6, with embodiment two the difference is that, track plates 1 and base
Filled layer 3 is made of self-compacting concrete material under the plate set between bottom 2；/V knot is additionally provided between track plates 1 and substrate 2
Structure 4, position limiting structure 4 are specially the local crowning that filled layer 3 is embedded in substrate 2 under plate；In addition, track plates 1 are equipped with installation passage
13, installation passage 13 is corresponded in substrate 2, anchoring piece 5 is fixedly installed, connector 7 is set through installation passage 13 with being fixed in substrate 2
5 assembly connection of anchoring piece put is together.Wherein, connector 7 is screw rod, and 7 top of screw rod is equipped with gasket 10, is set on anchoring piece 5
There is the threaded hole with screw rod installation cooperation.
Technical solution described in this example possesses the advantages of embodiment two, is not repeated herein.It is pointed out that anchor in this example
The connection device that is connected is assemblied in by installation passage 13 between track plates 1 and substrate 2, is not only adapted to new peak iron line construction, together
Sample is also applied for the transformation for having high ferro circuit.The drilling on the track plates of existing high ferro circuit is only needed to be used as installation passage,
Anchoring piece is fixed in the substrate, then backpressure device is installed, it is very convenient.
Technical principle based on this example, connector 7 can be screw rod in the utility model or front end is locally set
There is externally threaded connecting rod, can also realize identical technique effect, be all based on the simple change of the utility model technical principle,
Also among the protection domain of the requires of the utility model.In addition, the technical principle based on this example, is removed between connecting rod and anchoring piece
It can be connected with each other outer, can also be connected with each other by hanging structure by helicitic texture, for example, using being equipped with mounting block
Connecting rod coordinates with the anchoring piece equipped with pre-buried channel flow, and mounting block is hooked in pre-buried channel flow, can also realize good skill
Art effect is only given with word state herein, and still further attached drawing does not illustrate, also in the protection domain of the requires of the utility model
Among.
Embodiment five
The utility model plate-type ballastless railway roadbed as shown in Figure 7, with example IV the difference is that, 1 both sides of track plates
Equipped with boss 12, anchor connection device is mounted at boss 12；In anchor connection device, anchoring piece 5 be foundation bolt, connector
7 be the connecting rod with female sleeve structure.
Compared with example IV, in technical solution described in this example, since anchor connection device is mounted at boss 12, no
The gauge space on 8 periphery of track structure is occupied, track clearance will not be impacted, convenient for Maintenance and Repair of the later stage to track；
Further, since being provided with boss 12, thinner thickness, installation passage needed for installation connecting element 7 is easier to process, once somewhere
Joint failure occurs for connector and anchoring piece, can not repair, can also redrilling aside as new installation passage, then
Fixed foundation bolt, then installation connecting element are installed in substrate by installation passage again, complete the assembling of anchor connection device
, it is very convenient.
Embodiment six
The utility model plate-type ballastless railway roadbed as shown in Figure 8 and Figure 9, with embodiment five the difference is that, track plates 1
Upper setting partial groove 14；In addition, in anchor connection device, connector 7 is nut, and connector 7 is arranged in partial groove 14,
The lower part of anchoring piece 5 is fixed in substrate 2, and its upper part is stud, which passes through to correspond on track plates 1 and be set at partial groove 14
The installation passage put, and coordinate with gasket 10 and connector 7 and track plates 1 and the compression of filled layer under plate 3 fit together.
Compared with embodiment five, it is described in this example the advantages of technical solution, connector 7 and the assembling of anchoring piece 5 are in-orbit
The top of guidance tape is completed, and is operated simpler quick.
In summary as can be seen that the utility model plate-type ballastless railway roadbed, by adding anchor connection in ballast bed system
Device makes filled layer under track plates and plate remain the state of close contact, can effectively avoid using anchor connection device
It is peeling-off between filled layer under track plates and plate, both made stripping that will not generate vacantly, thus railway roadbed system can be effectively improved
The globality and security of system.It is pointed out that the substrate described in the utility model is varied, can be concrete
The Steel Bridge Deck of roadbed or Steel Bridge, such as welding hook can be hung on Steel Bridge Deck, then with connector
It connects, it is only necessary to which different according to specific substrate forms, select appropriate anchoring piece and substrate is fixedly connected with mode.Especially
Be, due to be in the utility model plate-type ballastless railway roadbed using anchor connection device offer be reliably connected, with ensure track plates with
Filled layer remains the state of close contact under plate, and it is Nian Jie with track plates not depend on the viscosity of filled layer under plate, therefore, under plate
Filled layer can be set using non-binding each other with track plates, and the repair to facilitate the later stage is replaced, and concrete mode can be under plate
Isolation film etc. is set between filled layer and track plates；In addition, the selection range of filled layer is more extensive under plate, such as filled under plate
Layer can be made of high resiliency mortar, elastic damping pad or elastic damping block, be carried the advantage that：It (1) can be preferably
Damping property is taken into account, it is horizontal to improve system vibration and noise reducing；(2) the various of selection advantageously reduces construction cost and reduces construction hardly possible
Degree；(3) China has a vast territory, and climate change is various, expands selection range and is more advantageous to improving the utility model plate-type ballastless road
The applicability of bed；(4) facility is provided for the maintenance in later stage.
In addition, the embodiment of the utility model is primarily to facilitate the technical principle that understands the utility model, not office
It is limited to the content of above-described embodiment record, the technology contents that above-described embodiment is recorded can also carry out cross-reference, based on this reality
With new technique principle, those skilled in the art can re-start technical solution described in above-described embodiment combination or using together
Class technology carries out simple replacement to some of which element, as long as the technical principle based on the utility model, all in the utility model
It is required that protection domain among.
Claims (8)
1. a kind of plate-type ballastless railway roadbed, including substrate, track plates are placed in above substrate, are equipped under plate and are filled out between track plates and substrate
Layer is filled, position limiting structure is additionally provided between track plates and substrate, it is characterised in that further includes anchor connection device, the anchor connection
Device includes connector and anchoring piece；Anchoring piece is fixed in substrate；Connector one end is connected with track plates, and the other end leads to
Anchoring piece is crossed with substrate to be connected.
2. plate-type ballastless railway roadbed according to claim 1, it is characterised in that track plates are equipped with installation passage, right in substrate
Answer installation passage that anchoring piece is fixedly installed, connector exists through installation passage with the anchoring piece assembly connection being fixedly installed in substrate
Together.
3. plate-type ballastless railway roadbed according to claim 1, it is characterised in that connector is arranged on track plates one side, with being connected
The anchoring otic placode of part connection is laterally inserted into track plates fixed.
4. plate-type ballastless railway roadbed according to claim 1, it is characterised in that connector is arranged on track plates one side, connector
For inverted L shape structure, track plates are fixed by the boss upper end set from track plates upper end or track plates side.
5. plate-type ballastless railway roadbed according to claim 1 or 2, it is characterised in that connector includes the connection with pilot hole
Plate, nut, the connecting bracket with connecting flange, equipped with mounting block connecting rod and equipped with internal thread or externally threaded connection
Bar.
6. plate-type ballastless railway roadbed according to claim 1, it is characterised in that anchoring piece is equipped with to assemble with connector
Threaded hole, stud, hook, the otic placode with pilot hole, connecting flange, pre-buried channel flow or the link of connection.
7. plate-type ballastless railway roadbed according to claim 1, it is characterised in that filled layer is subtracted by high resiliency mortar, elasticity under plate
Shake pad or elastic damping block is formed.
8. plate-type ballastless railway roadbed according to claim 1, it is characterised in that filled layer and track plates non-binding each other under plate
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430606.4U CN207391939U (en) | 2017-10-30 | 2017-10-30 | Plate-type ballastless railway roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430606.4U CN207391939U (en) | 2017-10-30 | 2017-10-30 | Plate-type ballastless railway roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207391939U true CN207391939U (en) | 2018-05-22 |
Family
ID=62327687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721430606.4U Active CN207391939U (en) | 2017-10-30 | 2017-10-30 | Plate-type ballastless railway roadbed |
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| CN (1) | CN207391939U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755283A (en) * | 2018-06-14 | 2018-11-06 | 宋会茹 | A kind of fragment-free track slab connector and non-fragment orbit |
| CN109267434A (en) * | 2018-10-18 | 2019-01-25 | 中南大学 | A kind of fragment-free track slab is Z-shaped to withhold stabilising arrangement |
| CN109338828A (en) * | 2018-11-14 | 2019-02-15 | 湖南科技学院 | A kind of thickening shock-absorbing type high-speed railway II type track board and its construction technology |
| CN110846951A (en) * | 2019-10-14 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Integral replacement method for ballastless track bed of subway under uninterrupted operation condition |
| CN111218860A (en) * | 2020-03-02 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Ballastless track railway deformation adjusting embankment structure and construction method |
| CN113584957A (en) * | 2021-07-07 | 2021-11-02 | 高速铁路建造技术国家工程实验室 | Two-stage bolt-anchor assembling integral type track unit and bolt-anchor assembling integral type track |
-
2017
- 2017-10-30 CN CN201721430606.4U patent/CN207391939U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755283A (en) * | 2018-06-14 | 2018-11-06 | 宋会茹 | A kind of fragment-free track slab connector and non-fragment orbit |
| CN108755283B (en) * | 2018-06-14 | 2019-06-11 | 台州大华铁路材料有限公司 | A kind of fragment-free track slab connector and non-fragment orbit |
| CN109267434A (en) * | 2018-10-18 | 2019-01-25 | 中南大学 | A kind of fragment-free track slab is Z-shaped to withhold stabilising arrangement |
| CN109338828A (en) * | 2018-11-14 | 2019-02-15 | 湖南科技学院 | A kind of thickening shock-absorbing type high-speed railway II type track board and its construction technology |
| CN110846951A (en) * | 2019-10-14 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Integral replacement method for ballastless track bed of subway under uninterrupted operation condition |
| CN110846951B (en) * | 2019-10-14 | 2021-04-06 | 中铁第四勘察设计院集团有限公司 | Integral replacement method for ballastless track bed of subway under uninterrupted operation condition |
| CN111218860A (en) * | 2020-03-02 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Ballastless track railway deformation adjusting embankment structure and construction method |
| CN113584957A (en) * | 2021-07-07 | 2021-11-02 | 高速铁路建造技术国家工程实验室 | Two-stage bolt-anchor assembling integral type track unit and bolt-anchor assembling integral type track |
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