CN113668295A - Z-shaped steel rail tunnel rail structure and application method thereof - Google Patents
Z-shaped steel rail tunnel rail structure and application method thereof Download PDFInfo
- Publication number
- CN113668295A CN113668295A CN202111009299.3A CN202111009299A CN113668295A CN 113668295 A CN113668295 A CN 113668295A CN 202111009299 A CN202111009299 A CN 202111009299A CN 113668295 A CN113668295 A CN 113668295A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- steel rail
- shaped steel
- rail
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 97
- 239000010959 steel Substances 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002861 polymer material Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 6
- 238000009417 prefabrication Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a Z-shaped steel rail tunnel rail structure and an application method thereof, wherein the tunnel structure is formed by splicing a plurality of tunnel pipe pieces, one tunnel pipe piece and a track bed of the track structure are prefabricated into an integrated integral structure, the track structure is installed on a tunnel pipe piece with the track bed, the track structure comprises a Z-shaped steel rail and a high polymer material adjusting bag, the Z-shaped steel rail is fixedly installed on the tunnel pipe piece with the track bed, and the high polymer material adjusting bag is arranged between the Z-shaped steel rail and the tunnel pipe piece. The invention has the advantages that: the height of the track structure is low; the track has few parts and is convenient to construct; the height adjustment amount of the track structure is large, the track structure can be adjusted in a stepless manner, and the height adjustment of the steel rail in the later period due to the design requirement is facilitated; the steel rail is convenient to replace; the problem of water seepage between the ballast bed and the duct piece is avoided, so that the ballast bed and the shield duct piece are completely prevented from being stripped; simple and reasonable structure and is suitable for popularization.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a Z-shaped steel rail tunnel rail structure and an application method thereof.
Background
The track structure in the general track traffic circular shield tunnel is designed into an I-shaped steel rail, a fastener, a sleeper and a reinforced concrete track bed, or an I-shaped steel rail, a fastener, a prefabricated track plate, a reinforced concrete substrate (or an I-shaped steel rail), a wrapping material and a reinforced concrete track bed structure. During construction, shield segments are assembled by a shield machine in a tunnel specialty, and rails, fasteners, ballast beds and the like are constructed in a track specialty, so that the whole tunnel rail structure is completed.
The above type of structure has the following drawbacks: the design scheme structure height of I-shaped rail and fastener is higher, and when the interval space of shield structure is limited, the track structure height is too high and can lead to the operation period shield structure to subside the back upper portion space not enough, and the more maintenance work volume of fastener spare part is big simultaneously, and the fastener volume of adjusting is limited. For the design scheme of the I-shaped steel rail and the wrapping material, the steel rail is difficult to replace in the operation period, the steel rail can be replaced only after the wrapping material is removed, and the height of the steel rail cannot be increased in the operation period. In addition, above three kinds of schemes all adopt the shield structure section of jurisdiction of constructing earlier, and the back is executed and is done the railway roadbed, leads to railway roadbed and shield structure section of jurisdiction to be two independent structures, if there is water infiltration railway roadbed and section of jurisdiction between the operation period will lead to the railway roadbed and the section of jurisdiction to peel off.
Disclosure of Invention
The invention aims to provide a Z-shaped steel rail tunnel rail structure and an application method thereof according to the defects of the prior art, and the steel rail and the rail lower support scheme thereof, which have the advantages of low structural height, few parts, large height adjustment amount, stepless height adjustment and convenience in steel rail replacement, are realized through the prefabricated tunnel rail structure with an integrated integral structure and the design of a Z-shaped and high polymer material adjustment bag.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a Z shape steel rail tunnel rail structure, includes tunnel structure and track structure, wherein the track structure sets up in the tunnel structure, its characterized in that: the tunnel structure is assembled by a plurality of tunnel segments and is constituted, one of them tunnel segment with track structure's track railway roadbed is prefabricated as an organic whole structure, track structure installs on the tunnel segment that has track railway roadbed, track structure includes Z shape steel rail and macromolecular material adjustment bag, Z shape steel rail fixed mounting has track railway roadbed just on the tunnel segment macromolecular material adjustment bag sets up Z shape steel rail with between the tunnel segment.
The tunnel segment with the track bed is provided with steps matched with the Z-shaped steel rails, and the Z-shaped steel rails are abutted against the steps and are fixedly connected with the tunnel segment.
Horizontal wing plates are respectively arranged on two sides of a steel rail head of the Z-shaped steel rail, the horizontal wing plate on the lower side is arranged at the lower part of the step, and the horizontal wing plate on the higher side is arranged at the higher part of the step, so that the Z-shaped steel rail is positioned on the tunnel pipe sheet through the limit of the step.
The Z-shaped steel rail and the tunnel segment are fixedly connected through pre-embedding a sleeve in the tunnel segment, a connecting hole is reserved in the Z-shaped steel rail, and a connecting piece is screwed in the sleeve and the connecting hole.
The tunnel segment with the track ballast bed is provided with a water drainage tank extending along the line direction in the middle of the tunnel segment, and a water drainage tank cover plate is arranged above the water drainage tank.
The high polymer material adjusting bag comprises a bag body and a high polymer material filled in the bag body.
An application method of the tunnel rail structure of the Z-shaped steel rail is characterized by comprising the following steps: the application method comprises the following steps:
prefabricating tunnel segments according to the Z-shaped steel rails of the track structure, so that one tunnel segment is prefabricated integrally with a track bed during prefabrication; during construction, a plurality of tunnel segments are assembled to form a tunnel structure;
erecting a Z-shaped steel rail by using steps on a tunnel segment with a track bed, preliminarily screwing a connecting piece in the Z-shaped steel rail to preliminarily position and fix the Z-shaped steel rail on the tunnel segment, and arranging a bag body of a high polymer material adjusting bag between the Z-shaped steel rail and the tunnel segment;
after the geometric shape and position of the steel rail are adjusted, the bag body of the high polymer material adjusting bag is filled with high polymer materials, and finally the connecting piece is screwed down to complete the structural connection.
And the height of the Z-shaped steel rail is adjusted by controlling the filling amount of the high polymer material in the high polymer material adjusting bag.
The invention has the advantages that: the height of the track structure is low, so that the maintenance of the upper space after the shield settlement in the operation period is increased with allowance, and the later maintenance is facilitated; the track has few parts and is convenient to construct; the height adjustment amount of the track structure is large, the track structure can be adjusted in a stepless manner, and the height adjustment of the steel rail in the later period due to the design requirement is facilitated; the steel rail is convenient to replace; the problem of water seepage between the ballast bed and the duct piece is avoided, so that the ballast bed and the shield duct piece are completely prevented from being stripped; simple and reasonable structure and is suitable for popularization.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, the labels 1-8 in the figures are respectively expressed as: the tunnel comprises a Z-shaped steel rail 1, a high polymer material adjusting bag 2, a fixing bolt 3, a sleeve 4, a prefabricated tunnel rail structure segment 5, a drainage channel cover plate 6, a common tunnel segment connecting bolt 7 and a common tunnel segment 8.
Example (b): as shown in fig. 1 and 2, the tunnel rail structure of the Z-shaped steel rail in this embodiment includes two parts, namely a tunnel structure and a track structure, wherein the track structure is disposed in the tunnel structure.
As shown in fig. 1, the tunnel structure is assembled by a plurality of tunnel segments, the tunnel segments are divided into prefabricated tunnel rail structure segments 5 and ordinary tunnel segments 8, wherein the prefabricated tunnel rail structure segments refer to the tunnel segments which are prefabricated into an integrated integral structure by a tunnel segment and a rail bed of a rail structure, the ordinary tunnel segments 8 are conventional tunnel segments, the fixed connection between the tunnel segments is realized by arranging ordinary tunnel segment connecting bolts 7 between the tunnel segments, and thus, the tunnel segments are assembled to form the tunnel.
In this embodiment, the connecting bolt 7 for connecting the common tunnel segment is provided with a through connecting hole at the joint of each tunnel segment, and the connecting bolt 7 for connecting the common tunnel segment is inserted into the connecting hole and anchored at the hand hole position of the end part of the connecting hole, so as to realize the fixed connection between the tunnel segments. In this embodiment, each tunnel segment is assembled to form a circular tunnel structure, and in actual design, the tunnel structure can be designed to be, for example, an oval or rectangular tunnel structure according to actual conditions.
As shown in fig. 1 and 2, the main body of the track structure comprises a Z-shaped steel rail 1 and a polymer material adjusting bag 2, wherein the Z-shaped steel rail 1 is fixedly installed above a prefabricated tunnel rail structure duct piece 5, and the polymer material adjusting bag 2 is arranged between the Z-shaped steel rail 1 and the prefabricated tunnel rail structure duct piece 5. Particularly, be provided with the step with the identical adaptation of Z shape steel rail 1 on the utensil prefabricated tunnel rail structure section of jurisdiction 5, as shown in fig. 1, Z shape steel rail 1 supports and leans on in the step position and is connected fixedly with prefabricated tunnel rail structure section of jurisdiction 5, and the rail railhead part of Z shape steel rail 1 exposes, and two Z shape steel rails 1 of arranging on prefabricated tunnel rail structure section of jurisdiction 5 constitute the track that supplies the rail train to travel.
As shown in fig. 1, two horizontal wing plates are respectively arranged on two sides of a rail head of a Z-shaped rail 1, the two horizontal wing plates are respectively positioned on planes with different heights, and the part between the two horizontal wing plates is an exposed rail head. Wherein the horizontal pterygoid lamina of lower side sets up in the lower department of the step of prefabricated tunnel rail structure section of jurisdiction 5, and the horizontal pterygoid lamina of higher side then sets up in the higher department of the step of tunnel rail structure section of jurisdiction 5, makes Z shape rail 1 pass through the spacing location of step on tunnel rail structure section of jurisdiction 5 to ensure the geometry position of Z shape rail 1 when the installation, especially the linear elements such as gauge between two Z shape rails 1.
As shown in fig. 1 and 2, the connection and fixation between the Z-shaped steel rail 1 and the tunnel rail structure duct piece 5 is realized by pre-embedding a sleeve 4 in the tunnel rail structure duct piece 5, reserving bolt connection holes at corresponding positions on horizontal wing plates on two sides of the Z-shaped steel rail 1, and screwing a fixing bolt 3 at the sleeve 4 and the bolt connection holes. At this moment, Z shape rail 1 is fixed on tunnel rail structure section of jurisdiction 5 through two fixing bolt 3 on its both sides horizontal pterygoid lamina, because Z shape rail 1 is fixed by fixing bolt 3 on two planes, its structural stability is showing and is improving, avoids taking off the sky.
As shown in fig. 1, when the prefabricated tunnel rail structure pipe piece 5 is prefabricated, a drainage groove extending along the line direction is prefabricated in the middle of the prefabricated tunnel rail structure pipe piece, and a drainage groove cover plate 6 is arranged above the drainage groove.
In this embodiment, the polymeric material adjustment bag 2 includes a bag body and a polymeric material filled in the bag body 2, and the polymeric material can be selected from a polymeric material having a certain elasticity and having a buffering energy and a vibration damping function. In addition, a filling port for filling the polymer material is provided in the body of the polymer material conditioning bag, and the filling port communicates with the inside of the body and can be closed by a lid. The high polymer material adjusting part 2 is provided with a hole matched with the position of the fixing bolt 3, so that the fixing bolt 3 is installed.
When the tunnel rail structure of the Z-shaped steel rail in the embodiment is applied, the tunnel rail structure of the Z-shaped steel rail comprises the following steps:
1) prefabricating the tunnel segment according to the Z-shaped steel rail 1, wherein prefabrication of a prefabricated tunnel rail structure segment 5 and prefabrication of a common tunnel segment 8 are included. For prefabrication of the prefabricated tunnel rail structure pipe piece 5, the prefabricated tunnel rail structure pipe piece and a rail track bed are integrally prefabricated to form an integral structure, so that the structure of the rail track bed needs to be considered, such as the height of the track bed, the position of a set step and the like. At this moment, through the design of prefabricated tunnel rail structure section of jurisdiction 5, thoroughly stop the railway roadbed and peel off with the tunnel section of jurisdiction and peel off various harmful effects that bring because of both.
2) During construction, the prefabricated tunnel rail structure duct pieces 5 and the common tunnel duct pieces 8 are assembled through the common tunnel duct piece connecting bolts 7 to form a tunnel structure.
3) And erecting the Z-shaped steel rail 1 by utilizing the step on the prefabricated tunnel rail structure duct piece 5, so that the Z-shaped steel rail 1 is abutted against the step. Then, the fixing bolt 3 is screwed into the sleeve 4 through the bolt connecting hole on the Z-shaped steel rail 1 preliminarily, so that the Z-shaped steel rail 1 is preliminarily positioned and fixed on the duct piece 5 of the prefabricated tunnel rail structure, and a sufficient gap is reserved between the fixing bolt and the duct piece for the filling of the high molecular material adjusting bag 2 and then the expansion is realized. Meanwhile, a bag body of the high polymer material adjusting bag 2 is arranged between the prefabricated tunnel rail structure pipe piece 5 and the Z-shaped steel rail 1, and the fixing bolt 3 also penetrates through a hole reserved in the high polymer material adjusting bag 2.
4) After the geometric shape and position of the steel rail are adjusted, the high polymer material is filled in the bag body of the high polymer material adjusting bag 2, and finally the fixing bolt 3 is screwed up to complete the connection between the track structure and the tunnel structure. The height of the Z-shaped steel rail 1 is lower than that of the I-shaped steel rail, and the rail head of the Z-shaped steel rail is the same as that of the I-shaped steel rail, so that the replaceability is strong.
At this time, the height of the Z-shaped steel rail 1 can be adjusted by controlling the filling amount of the polymer material in the polymer material adjusting bag 2; when the height of the Z-shaped steel rail 1 is adjusted, the fixing bolt 3 needs to be unscrewed. Meanwhile, when the Z-shaped steel rail 1 meets the construction requirements, such as the maintenance requirements of the upper part of the shield after settlement in the later operation period, the height of the Z-shaped steel rail 1 can be reduced by actively adjusting the filling amount of the high polymer material adjusting bag 2. The high polymer material adjusting bag 2 only comprises a bag body and a high polymer material filled in the bag body, so that the high polymer material adjusting bag has few parts, large height adjustment amount and stepless height adjustment, and can provide buffer energy and vibration damping effect.
5) And (4) installing a prefabricated ditch cover plate 6 above the drainage channel of the prefabricated tunnel rail structure duct piece 5 to finish construction.
In the embodiment, in specific implementation: the rail head of the Z-shaped steel rail 1 has the same profile as that of the traditional 60kg/m steel rail, the material can be U71Mn or U75V, and the profile and the material are matched with those of the existing vehicle wheels, so that the Z-shaped steel rail is convenient to popularize and apply and has strong adaptability.
The rail bottom slope with a certain inclination is arranged on the rail bearing surface of the prefabricated tunnel rail structure duct piece 5, and the inclined direction of the rail bottom slope faces the drainage groove formed in the middle of the prefabricated tunnel rail structure duct piece 5 so as to improve the drainage efficiency.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.
Claims (8)
1. The utility model provides a Z shape steel rail tunnel rail structure, includes tunnel structure and track structure, wherein the track structure sets up in the tunnel structure, its characterized in that: the tunnel structure is assembled by a plurality of tunnel segments and is constituted, one of them tunnel segment with track structure's track railway roadbed is prefabricated as an organic whole structure, track structure installs on the tunnel segment that has track railway roadbed, track structure includes Z shape steel rail and macromolecular material adjustment bag, Z shape steel rail fixed mounting has track railway roadbed just on the tunnel segment macromolecular material adjustment bag sets up Z shape steel rail with between the tunnel segment.
2. The Z-shaped steel rail tunnel rail structure of claim 1, wherein: the tunnel segment with the track bed is provided with steps matched with the Z-shaped steel rails, and the Z-shaped steel rails are abutted against the steps and are fixedly connected with the tunnel segment.
3. The Z-shaped steel rail tunnel rail structure of claim 2, wherein: horizontal wing plates are respectively arranged on two sides of a steel rail head of the Z-shaped steel rail, the horizontal wing plate on the lower side is arranged at the lower part of the step, and the horizontal wing plate on the higher side is arranged at the higher part of the step, so that the Z-shaped steel rail is positioned on the tunnel pipe sheet through the limit of the step.
4. The Z-shaped steel rail tunnel rail structure according to claim 1 or 2, wherein: the Z-shaped steel rail and the tunnel segment are fixedly connected through pre-embedding a sleeve in the tunnel segment, a connecting hole is reserved in the Z-shaped steel rail, and a connecting piece is screwed in the sleeve and the connecting hole.
5. The Z-shaped steel rail tunnel rail structure of claim 1, wherein: the tunnel segment with the track ballast bed is provided with a water drainage tank extending along the line direction in the middle of the tunnel segment, and a water drainage tank cover plate is arranged above the water drainage tank.
6. The Z-shaped steel rail tunnel rail structure of claim 1, wherein: the high polymer material adjusting bag comprises a bag body and a high polymer material filled in the bag body.
7. An application method of the Z-shaped steel rail tunnel rail structure disclosed by claims 1-6 is characterized in that: the application method comprises the following steps:
prefabricating tunnel segments according to the Z-shaped steel rails of the track structure, so that one tunnel segment is prefabricated integrally with a track bed during prefabrication; during construction, a plurality of tunnel segments are assembled to form a tunnel structure;
erecting a Z-shaped steel rail by using steps on a tunnel segment with a track bed, preliminarily screwing a connecting piece in the Z-shaped steel rail to preliminarily position and fix the Z-shaped steel rail on the tunnel segment, and arranging a bag body of a high polymer material adjusting bag between the Z-shaped steel rail and the tunnel segment;
after the geometric shape and position of the steel rail are adjusted, the bag body of the high polymer material adjusting bag is filled with high polymer materials, and finally the connecting piece is screwed down to complete the structural connection.
8. The application method of the tunnel rail structure with the Z-shaped steel rail as claimed in claim 7, wherein the tunnel rail structure with the Z-shaped steel rail comprises the following steps: and the height of the Z-shaped steel rail is adjusted by controlling the filling amount of the high polymer material in the high polymer material adjusting bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009299.3A CN113668295A (en) | 2021-08-31 | 2021-08-31 | Z-shaped steel rail tunnel rail structure and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009299.3A CN113668295A (en) | 2021-08-31 | 2021-08-31 | Z-shaped steel rail tunnel rail structure and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113668295A true CN113668295A (en) | 2021-11-19 |
Family
ID=78547518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111009299.3A Pending CN113668295A (en) | 2021-08-31 | 2021-08-31 | Z-shaped steel rail tunnel rail structure and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113668295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117266879A (en) * | 2023-11-23 | 2023-12-22 | 中国矿业大学(北京) | Assembled shield segment assembly integrated with magnetic suspension track |
-
2021
- 2021-08-31 CN CN202111009299.3A patent/CN113668295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117266879A (en) * | 2023-11-23 | 2023-12-22 | 中国矿业大学(北京) | Assembled shield segment assembly integrated with magnetic suspension track |
| CN117266879B (en) * | 2023-11-23 | 2024-01-26 | 中国矿业大学(北京) | Assembled shield segment assembly integrated with magnetic suspension track |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203546524U (en) | Medium-and-low-speed magnetically-suspended traffic integral-type road-bed track structure | |
| US4905896A (en) | Railroad roadway for high speed rail-mounted vehicles | |
| CN113668295A (en) | Z-shaped steel rail tunnel rail structure and application method thereof | |
| CN103835191A (en) | Monolithic track bed track structure capable of being rapidly assembled | |
| CN1818213A (en) | Double-blocked rail without ballast | |
| EP1558815B1 (en) | Fixed track for rail vehicles and method for production thereof | |
| CN201236321Y (en) | Sound insulation regulating mass for U shaped beam of overhead viaduct of urban rail traffic | |
| CN216006445U (en) | Z-shaped steel rail tunnel rail structure | |
| CN202017168U (en) | Unit board type ballastless track structure of railway turnout area | |
| CN105133439A (en) | Embedded ballastless track system for greening section | |
| KR100759923B1 (en) | Low height and longspan girder for a railway | |
| CN110939017A (en) | Elastic prefabricated assembling plate type ballast track | |
| CN112211037B (en) | Ballast track with adjustable rigid foundation and sleeper thereof | |
| CN205874858U (en) | There is pillow not have not modern tram fastener of split of shelves shoulder elasticity | |
| CN209482069U (en) | A kind of simple adjustable supporting system of track | |
| CN210657807U (en) | Steel sleeper capable of replacing ballast bed as bearing structure | |
| CN212771757U (en) | Ballastless track structure capable of adjusting height greatly | |
| CN202945508U (en) | Track structure of monolithic track bed capable of being assembled rapidly | |
| CN111560795A (en) | Ballastless track structure with large adjustment amount and easy installation | |
| CN110700017A (en) | Construction method of through-type continuous supporting track system | |
| CN111206460A (en) | Bearing type damping supporting block, continuous supporting track system and construction method | |
| CN104358191A (en) | Embedded type fastener for tramcar | |
| US11021841B2 (en) | Railway or tramway track | |
| EP3825461B1 (en) | Support of a rest baseplate for at least one rail | |
| KR20130075818A (en) | Repairing apparatus and repairing method for floating railroad bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |