CN110616599A - Temporary steel rail fixing structure and longitudinal groove blocking block installation construction method - Google Patents
Temporary steel rail fixing structure and longitudinal groove blocking block installation construction method Download PDFInfo
- Publication number
- CN110616599A CN110616599A CN201911017521.7A CN201911017521A CN110616599A CN 110616599 A CN110616599 A CN 110616599A CN 201911017521 A CN201911017521 A CN 201911017521A CN 110616599 A CN110616599 A CN 110616599A
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- China
- Prior art keywords
- rail
- temporary
- steel rail
- groove
- steel
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/40—Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track
Abstract
The invention relates to a temporary steel rail fixing structure and a longitudinal groove blocking block installation construction method, which comprises a plate body, a steel rail assembly, a temporary fastener and a noise reduction block, wherein the steel rail assembly comprises a steel rail, the top surface of the plate body is provided with a concave rail bearing groove, the steel rail is arranged at the rail bearing groove, and the steel rail is fixed on the plate body through the temporary fastener; between two adjacent vertical temporary fastening pieces, the inside and outside of rail all install and fall the piece of making an uproar, fall the piece bottom of making an uproar and imbed between rail subassembly and the support rail groove cell wall, fall the top of making an uproar the piece and extend to railhead below. The invention is suitable for temporary fixation of the steel rail in the construction process of the continuous support rail system; after the track line is stable, the temporary fastener is removed, then the longitudinal groove blocking block is installed, and the polymer damping material is poured to fix the steel rail assembly for a long time, so that continuous supporting and locking of the steel rail can be provided, a vibration source generated by the steel rail under the action of external force can be basically eliminated, the contact relation of the wheel rail is favorably improved, the abrasion of the wheel rail is greatly reduced, and the service life of the wheel rail is prolonged.
Description
Technical Field
The invention relates to the technical field of railway tracks, in particular to a temporary steel rail fixing structure and a longitudinal groove blocking block installation construction method.
Background
The track slab is a novel under-track component in the structural form of a slab for supporting and securing a rail and distributing the load transmitted by a train through the rail to an under-slab foundation.
The double-block ballastless track, CRTS I type, CRTS II type and CRTS III type plate ballastless tracks are all applied to high-speed railways or passenger special lines in China. The track slabs of the CRTS I type, CRTS II type and CRTS III type slab ballastless tracks are all of prestressed structures.
The prior track system adopts a fastener system to support a steel rail, the fastener system supports the steel rail discontinuously, the steel rail has a suspended section, when a train runs on the steel rail at a certain speed, the steel rail can generate pined-pined vibration mode, the contact relation of wheel rails is poor, and the abrasion of the steel rail is large. If the fastener system is cancelled and the through bearing type continuous supporting track system is adopted, the initial debugging and the later maintenance and replacement of the steel rail are difficult.
Disclosure of Invention
The invention aims to provide a temporary steel rail fixing structure and a longitudinal groove blocking block installation construction method, which can temporarily fix a steel rail assembly and facilitate continuous adjustment of a steel rail at the initial stage; meanwhile, the steel rail is convenient to maintain and replace at the later stage.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the temporary fixing structure of the steel rail comprises a plate body, a steel rail assembly and temporary fasteners, wherein the steel rail assembly comprises the steel rail, two longitudinal grooves are formed in the top surface of the plate body, a rail bearing groove formed by an inner concave is formed in the groove bottom of each longitudinal groove, the steel rail is arranged on the rail bearing groove and fixed on the plate body through the temporary fasteners, the temporary fasteners are arranged on steps on two sides of the rail bearing groove, and the temporary fasteners are connected with the plate body through bolts.
Preferably, the rail groove is located centrally in the groove bottom of the longitudinal groove.
Further, interim fastener includes interim indisputable buckle, interim iron tie plate and interim fixing bolt, on the plate body was arranged in to interim iron tie plate, interim iron buckle was arranged in on the interim iron tie plate, and interim iron buckle and interim iron tie plate pass through interim fixing bolt and plate body rigid coupling, and the inner of interim iron tie plate supports the rail bottom side bottom of rail, and interim iron buckle is from last down detaining on rail bottom of the rail top surface.
Further, the steel rail assembly further comprises a height-adjusting base plate and a long elastic base plate, the long elastic base plate is paved at the bottom of the rail bearing groove, the height-adjusting base plate is pressed on the long elastic base plate, and the steel rail is pressed on the height-adjusting base plate.
Further, the interim fixed knot of rail constructs still includes and falls the piece of making an uproar, falls the piece of making an uproar between two vertical adjacent interim fasteners, the inside and outside of rail all installs, falls the piece bottom support of making an uproar and in rail bottom surface, falls the top of making an uproar and extends to railhead below.
Furthermore, the noise reduction block is attached to the rail web of the steel rail.
The longitudinal groove blocking block installing and constructing method includes the following steps,
s1, driving a project train on the temporary steel rail fixing structure, and periodically measuring and adjusting the height-adjusting base plate;
s2, removing the temporary fastener after the track line is stabilized; before the temporary fasteners are removed, the noise reduction block is ensured to be stuck between the two temporary fasteners and on the rail waists at two sides of the steel rail; the noise reduction block is supported on the upper surface of the bottom of the steel rail, and the top of the noise reduction block extends to the position below the rail head;
removing a section of temporary fastener, and installing a section of longitudinal groove blocking block which is fixedly connected with the plate body through a bolt; longitudinal groove blocking blocks are arranged on steps on two sides of the rail bearing groove, the longitudinal groove blocking blocks are longitudinally and continuously arranged along two sides of the rail bearing groove, and the rail bearing groove and the longitudinal groove blocking blocks on the two sides of the rail bearing groove form a steel rail embedded groove;
and after the longitudinal groove blocking block on each plate body is installed, pouring a polymer damping material into the embedded groove of the steel rail to lock the steel rail.
Preferably, each plate body has 4 longitudinal catch grooves on one side of the rail groove.
Compared with the prior art, the invention has the following beneficial effects:
the temporary fixing structure for the steel rail can temporarily fix the steel rail assembly, and the shape and position of the steel rail can be adjusted continuously at the initial stage conveniently;
and 2, after the track line is stable, installing a longitudinal groove blocking block and pouring a high-molecular damping material to fix the steel rail assembly for a long time. The rail system constructed by the method can provide continuous support and continuous locking for the steel rail, can basically eliminate a vibration source generated by the steel rail under the action of external force, reduces the dynamic stress of the wheel rail, weakens the vibration noise transmission generated by the wheel rail, is beneficial to improving the contact relation of the wheel rail, greatly reduces the abrasion of the wheel rail and prolongs the service life of the wheel rail;
3, the longitudinal groove blocking blocks on the two sides of the rail bearing groove can be detached, and the steel rail assembly and the longitudinal groove blocking blocks can be detached integrally during later maintenance or replacement, so that the maintenance is convenient and fast.
Drawings
FIG. 1 is a schematic structural view of a temporary fixing structure of a steel rail according to an embodiment;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural diagram of a plate body according to an embodiment;
FIG. 4 is a cross-sectional view of a noise reduction block after the longitudinal notch block has been installed in accordance with one embodiment;
FIG. 5 is a top view of the longitudinal slot stop block after installation;
FIG. 6 is a cross-sectional view of the first embodiment of the mid-high molecular damping material after casting;
FIG. 7 is a side view of the noise reduction block after the polymer damping material is poured in the second embodiment;
in the figure: 1-plate body, 2-longitudinal groove blocking block, 3-bolt, 4, longitudinal groove, 5-steel rail assembly, 6-step, 7-noise reduction block, 9-temporary fastener, 91-temporary iron buckle plate, 92-temporary iron base plate, 93-temporary fixing bolt, 11-rail bearing groove, 12-bolt sleeve, 51-long elastic base plate, 52-heightening base plate, 53-steel rail and 54-polymer damping material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, the temporary fixing structure for a steel rail disclosed in this embodiment includes a plate 1, a steel rail assembly 5 and a temporary fastening member 9, wherein two longitudinal grooves 4 are formed in the top surface of the plate 1, and a rail receiving groove 11 formed by an inward recess is formed in the center of the bottom of each longitudinal groove 4. The steel rail assembly 5 comprises a steel rail 53, the steel rail 53 is arranged at the rail bearing groove 11, the steel rail 53 is fixed on the plate body 1 through a plurality of temporary fasteners 9, bolt sleeves 12 are pre-embedded on the steps 6 on two sides of the rail bearing groove 11, and the temporary fasteners 9 are in bolt connection with the plate body 1.
The rail assembly 5 further comprises a height-adjusting base plate 52 and a long elastic base plate 51, wherein the long elastic base plate 51 is laid on the bottom of the rail bearing groove 11, the rail 53 is pressed on the height-adjusting base plate 52, and the height-adjusting base plate 52 is pressed on the long elastic base plate 51. As shown in fig. 1 and 2, the temporary fastening 9 includes a temporary iron buckle plate 91, a temporary iron pad 92 and a temporary fixing bolt 93, the temporary iron pad 92 is placed on the steps 6 on both sides of the rail bearing groove 11, the temporary iron buckle plate 91 is placed on the temporary iron pad 92, the temporary iron buckle plate 91 and the temporary iron pad 92 are fixedly connected with the plate body 1 through the temporary fixing bolt 93, and the fixing bolt 93 is connected with a bolt sleeve 12 pre-embedded in the plate body 1. The inner end of the temporary iron backing plate 92 is abutted against the bottom of the rail bottom side of the steel rail 53, and the temporary iron buckling plate 91 is buckled on the top surface of the rail bottom of the steel rail 53 from top to bottom.
The sizes of all parts of the temporary steel rail fixing structure are set according to needs. This embodiment provides a set of data as a reference. The steel rail is 50kg/m or 60kg/m, the width of the plate body 1 is 1800-2400mm, and the thickness is 400-700 mm. The depth of the rail bearing groove 11 is 30mm, and the width of the rail bearing groove 11 is 150mm-200 mm; the height of the longitudinal groove blocking block 2 is 100-130 mm; the plate body 1 is provided with a bolt sleeve 12.
The invention discloses a longitudinal groove blocking block installation construction method, which comprises the following steps,
s1, running a construction train on the temporary steel rail fixing structure, and repeatedly and precisely adjusting and positioning the temporary fasteners 9 and the heightening base plates 52 under the repeated action of the construction train;
s2, after the track line is stable, the temporary fasteners 9 can be gradually removed, and the noise reduction block 7 is timely adhered to the rail web between the two temporary fasteners 9 and on the two sides of the steel rail 53 before the temporary fasteners 9 are removed; the noise reduction block 7 is made of sound absorption material or sound absorption structure, and can play a role in absorbing sound and reducing noise. The noise reduction block 7 is supported on the upper surface of the rail bottom of the steel rail, and the top of the noise reduction block 7 extends to the lower part of the rail head, so that the noise reduction block has a certain supporting effect on the steel rail.
S3, removing the temporary fasteners 9, and installing the longitudinal groove blocking blocks 2, wherein the longitudinal groove blocking blocks 2 are installed on the steps 6 on the two sides of the rail bearing groove 11, the longitudinal groove blocking blocks 2 are installed along the two sides of the rail bearing groove 11 in a continuous and close fit mode, and the rail bearing groove 11 and the longitudinal groove blocking blocks 2 on the two sides of the rail bearing groove form a steel rail inner embedded groove. The longitudinal groove blocking block 2 is fixedly connected with the plate body 1 through a bolt 3; the bolt 3 is connected with a bolt sleeve 12 pre-embedded in the plate body 1.
In another embodiment, before the engineering train is driven, noise reduction blocks 7 are adhered to the inner side and the outer side of the steel rail 53 between two adjacent temporary fasteners 9 in the longitudinal direction, the noise reduction blocks 7 are supported on the upper surface of the rail bottom of the steel rail 53, and the tops of the noise reduction blocks 7 extend to the position below the rail head. The noise reduction block 7 fixes the rail 53 together with the temporary clip 9. After the track line is stable, the temporary fastener 9 is gradually removed without removing the noise reduction block 7.
After the longitudinal groove blocking blocks 2 on each plate body 1 are installed to reach the standard, as shown in fig. 6, a polymer damping material 54 is poured into the embedded grooves of the steel rails to lock the steel rails 53, and the cleanness and tidiness of the construction site environment are noticed. Preferably, as shown in fig. 5, each plate body 1 has 4 longitudinal notch blocks 2 on one side of the rail groove 11.
The measures for installing the temporary fasteners on the steel rails are consistent, and the methods for removing the temporary fasteners and installing the longitudinal groove blocking blocks are also consistent. The dismantled temporary fastener systems are stored in a classified mode, and the storage system needs to be strict for recycling.
In this embodiment, the longitudinal groove 4 on the plate body 1 is a high-position embedded groove, and the longitudinal groove blocking block 2 is completely embedded in the plate body 1, so that the plate is suitable for the situation that a rack needs to be installed in the center of the plate surface, and the mountain-climbing rack train can run conveniently.
The temporary steel rail fixing and longitudinal groove blocking block mounting methods of the high-position embedded structure, the horizontal embedded structure and the low-position embedded structure are consistent.
Example two
The difference between this embodiment and the first embodiment is: as shown in fig. 7, in the present embodiment, the longitudinal groove 4 of the plate body 1 is a low-position embedded groove, the longitudinal slot-blocking block 2 is partially embedded in the plate body 1, and most (e.g. 77%) of the height of the longitudinal slot-blocking block 2 is exposed on the top surface of the plate body 1.
The temporary fixing structure for the steel rail can temporarily fix the steel rail assembly, is convenient for adjusting the steel rail, and is suitable for temporarily fixing the steel rail in the construction process of a continuous supporting rail system; after the track line is stabilized and finally finely adjusted, the longitudinal groove blocking blocks are installed and the high-molecular damping material is poured so as to accurately position and fix the steel rail assembly for a long time, provide continuous support and continuous locking for the steel rail, basically eliminate a vibration source generated by the steel rail under the action of external force, reduce the dynamic stress of the wheel rail, weaken the transmission of vibration noise generated by the wheel rail, be beneficial to improving the contact relation of the wheel rail, greatly reduce the abrasion of the wheel rail and prolong the service life of the wheel rail.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (8)
1. Rail temporary fixation structure, its characterized in that: including plate body, rail subassembly and interim fastener, the rail subassembly includes the rail, the plate body top surface has the vertical recess of twice, and the tank bottom of every vertical recess has the rail supporting groove of a indent formation, and the rail is arranged rail supporting groove department in and is fixed in the plate body through a plurality of interim fasteners on, and on the step of rail supporting groove both sides was arranged in to interim fastener, interim fastener and plate body bolted connection.
2. A temporary rail fixing structure according to claim 1, wherein: the rail bearing groove is positioned in the center of the groove bottom of the longitudinal groove.
3. A temporary rail fixing structure according to claim 1, wherein: the temporary fastener comprises a temporary iron buckle plate, a temporary iron base plate and a temporary fixing bolt, wherein the temporary iron base plate is arranged on the plate body, the temporary iron buckle plate is arranged on the temporary iron base plate, the temporary iron buckle plate and the temporary iron base plate are fixedly connected with the plate body through the temporary fixing bolt, the inner end of the temporary iron base plate supports against the bottom of the rail bottom side of the steel rail, and the temporary iron buckle plate is buckled on the top surface of the rail bottom of the steel rail from top to bottom.
4. A rail temporary fixing structure according to claim 1, 2 or 3, wherein: the steel rail assembly further comprises a height-adjusting base plate and a long elastic base plate, the long elastic base plate is paved at the bottom of the rail bearing groove, the height-adjusting base plate is pressed on the long elastic base plate, and the steel rail is pressed on the height-adjusting base plate.
5. A rail temporary fixing structure according to claim 1 or 3, wherein: it still falls the piece of making an uproar including falling, between two vertical adjacent temporary buckling pieces, the inside and outside of rail all installs and falls the piece of making an uproar, falls the piece of making an uproar and supports in rail bottom upper surface, falls the top of making an uproar the piece and extends to railhead below.
6. A temporary fixing structure of a steel rail according to claim 5, wherein: the noise reduction block is attached to the rail web of the steel rail.
7. The longitudinal groove blocking block installation construction method is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, running a construction train on the temporary fixing structure of the steel rail as claimed in any one of claims 1 to 6, and periodically measuring and adjusting the height-adjusting tie plate;
s2, removing the temporary fastener after the track line is stabilized; before the temporary fasteners are removed, the noise reduction block is adhered between the two temporary fasteners and on the rail web at two sides of the steel rail, the noise reduction block is supported on the upper surface of the bottom of the steel rail, and the top of the noise reduction block extends to the position below the rail head;
removing a section of temporary fastener, and installing a section of longitudinal groove blocking block which is fixedly connected with the plate body through a bolt; longitudinal groove blocking blocks are arranged on steps on two sides of the rail bearing groove, the longitudinal groove blocking blocks are longitudinally and continuously arranged along two sides of the rail bearing groove, and the rail bearing groove and the longitudinal groove blocking blocks on the two sides of the rail bearing groove form a steel rail embedded groove;
and after the longitudinal groove blocking block on each plate body is installed, pouring a polymer damping material into the embedded groove of the steel rail to lock the steel rail.
8. The longitudinal groove stopper installation and construction method according to claim 7, wherein: each plate body has 4 longitudinal groove blocking blocks on one side of the rail supporting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017521.7A CN110616599A (en) | 2019-10-24 | 2019-10-24 | Temporary steel rail fixing structure and longitudinal groove blocking block installation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017521.7A CN110616599A (en) | 2019-10-24 | 2019-10-24 | Temporary steel rail fixing structure and longitudinal groove blocking block installation construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110616599A true CN110616599A (en) | 2019-12-27 |
Family
ID=68926420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911017521.7A Withdrawn CN110616599A (en) | 2019-10-24 | 2019-10-24 | Temporary steel rail fixing structure and longitudinal groove blocking block installation construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110616599A (en) |
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2019
- 2019-10-24 CN CN201911017521.7A patent/CN110616599A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191227 |
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| WW01 | Invention patent application withdrawn after publication |