CN111663375B - Novel beam type embedded track system and construction and maintenance process thereof - Google Patents
Novel beam type embedded track system and construction and maintenance process thereof Download PDFInfo
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- CN111663375B CN111663375B CN202010558428.3A CN202010558428A CN111663375B CN 111663375 B CN111663375 B CN 111663375B CN 202010558428 A CN202010558428 A CN 202010558428A CN 111663375 B CN111663375 B CN 111663375B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 239000000806 elastomer Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 7
- 241001669679 Eleotris Species 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 10
- 238000013016 damping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003832 thermite Substances 0.000 description 1
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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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
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a novel beam type embedded track system and a construction and maintenance process thereof, wherein the system comprises: the bearing platforms are distributed on the roadbed supporting layer at intervals; two ends of the beam-type rail bearing groove are erected on two adjacent bearing platforms, and the lower parts of the two ends of the beam-type rail bearing groove are embedded into the bearing platforms by a preset depth; the gap filling stop block is arranged in a reserved ballast bed gap between two adjacent ends of every two adjacent longitudinal beam type rail supporting grooves; and the rail is continuously arranged in the beam-type rail bearing groove and is wrapped and supported by the elastomer filled in the beam-type rail bearing groove. The construction and maintenance process is a method for respectively constructing and maintaining the system. The invention keeps the structural characteristics of the embedded track and improves the maintenance performance; the beam type rail supporting groove can be independently installed and constructed, the supporting layer is optimized from surface contact to two-point contact, and the construction efficiency is effectively improved; the circuit rail is convenient to maintain in the later period, and the independent beam type rail bearing groove can be quickly adjusted to realize the circuit maintenance by assembling an adjusting gasket with the support; the line overhaul can be realized by only integrally replacing the line from the ballast bed seam according to the unit length.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a novel beam type embedded rail system and a construction and maintenance process thereof.
Background
In recent years, with the continuous popularization of embedded rails, the embedded rails have been gradually widely applied to trams and subway lines. The embedded track is used as a novel integrated product of a track traffic system, has the advantages of good vibration and noise reduction effect, low wheel track abrasion, long service life, good insulating property, good riding comfort and the like, and gradually receives attention in the field of urban rail traffic in China. Such as the Chengdu R1 line tramcar project, the Chengdu Huanhua 2 line tramcar project, the Guangzhou subway project and the like.
With the rapid development of urban rail transit, the embedded rail is expected to be widely applied to domestic subways, tramcars and even high-speed railways as a rail system with more excellent performance. But the existing embedded track supporting surface is in surface contact, which is not beneficial to installation, construction and later maintenance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a novel beam type embedded track system capable of improving the maintenance and replacement performance.
One aspect of the present invention provides a novel beam-type embedded rail system, comprising:
the bearing platforms are distributed on the roadbed supporting layer at intervals;
two ends of the beam-type rail bearing groove are erected on two adjacent bearing platforms, and the lower parts of the two ends of the beam-type rail bearing groove are embedded into the bearing platforms by a preset depth;
the gap filling stop block is arranged in a reserved ballast bed gap between two adjacent ends of every two adjacent longitudinal beam type rail supporting grooves;
and the rail is continuously arranged in the beam-type rail bearing groove and is wrapped and supported by the elastomer filled in the beam-type rail bearing groove.
According to one embodiment of the novel beam type embedded track system, the bearing platform is a prefabricated part or a cast-in-place part, the bearing platform is fixedly connected with the roadbed supporting layer, and the gap filling stop dog is connected with the bearing platform through a threaded connecting piece.
According to one embodiment of the novel beam-type embedded track system, the bearing platform is of an integral structure or a split structure comprising a lower supporting pier and an upper integral support, and a shock pad is arranged on the bearing platform.
According to one embodiment of the novel beam type embedded track system, the transverse left beam type rail bearing groove and the transverse right beam type rail bearing groove are arranged in a split mode or an integrated mode, and the rail containing grooves which are used for containing the track and the elastic bodies and are arranged along the length direction of the beam type rail bearing grooves are formed in the surfaces of the beam type rail bearing grooves.
According to an embodiment of the novel beam-type embedded track system of the present invention, the beam-type rail supporting groove is a plate-shaped beam with a planar bottom surface or a supporting beam with a supporting block on the bottom surface, and when the beam-type rail supporting groove is a plate-shaped beam with a planar bottom surface, the novel beam-type embedded track system further includes beam sleepers disposed below the middle portion of each beam-type rail supporting groove; when the beam-type rail bearing groove is a supporting beam with a supporting block on the bottom surface, the bottom surface of the supporting block is in contact with the surface of the bearing platform.
According to one embodiment of the novel beam-type embedded track system, the beam-type rail bearing groove and the bearing platform are restrained through a U-shaped groove formed in the bearing platform, and a longitudinal adjusting gasket located at the end part of the beam-type rail bearing groove, a transverse adjusting gasket located on the side face of the beam-type rail bearing groove and an elevation adjusting gasket located on the bottom face of the beam-type rail bearing groove are arranged between the beam-type rail bearing groove and the bearing platform.
The invention also provides a construction process of the novel beam type embedded track system, which comprises the following steps:
determining the position of a bearing platform, binding a reinforcing cage of the bearing platform or directly installing the bearing platform, and placing a beam pillow according to the requirement;
hoisting the beam-type rail supporting groove to a required position, reserving a track bed seam and finely adjusting the elevation, horizontal transverse position and longitudinal position of the beam-type rail supporting groove;
after fine adjustment is carried out in place, the gap filling stop dog is installed in the track bed seam and is pre-fixedly connected with the beam type rail bearing groove, bearing platform concrete is poured or the gap filling stop dog and the bearing platform are directly fixed, and a beam sleeper is fixed according to requirements;
and welding and laying the rails in the beam type rail bearing grooves and pouring a high polymer material to form an elastic body to obtain the novel beam type embedded rail system.
The invention also provides a maintenance process of the novel beam-type embedded track system, when the position of the track needs to be adjusted, the beam-type rail bearing groove is jacked in a gap between bearing platforms, the bearing platforms at two ends of the beam-type rail bearing groove are locally chiseled off, the elevation and the horizontal transverse and longitudinal positions of the beam-type rail bearing groove are finely adjusted again, and high-strength mortar is poured to re-restrain the beam-type rail bearing groove after the adjustment is finished.
The invention also provides a maintenance process of the novel beam-type embedded track system, when the track needs to be replaced, the track is cut after the gap filling stop is removed, the track to be replaced and the corresponding beam-type rail bearing groove are integrally removed, the beam-type rail bearing groove which is prefabricated and integrated and comprises the track and the elastic body is adopted for replacement and installation, and the gap filling stop is arranged after the track is welded at the track bed seam after fine adjustment to complete replacement.
Compared with the conventional scheme, the technical scheme is adopted, so that the beneficial effects of the invention comprise:
1) the structure characteristics of the embedded track are reserved, and the maintenance performance is improved;
2) the beam type rail supporting groove can be independently installed and constructed, the supporting layer is optimized from surface contact to two-point contact, and the construction efficiency is effectively improved;
3) the circuit rail is convenient to maintain in the later period, and the independent beam type rail bearing groove can be quickly adjusted to realize the circuit maintenance by assembling an adjusting gasket with the support;
4) the line overhaul can be realized by only integrally replacing the line from the track bed seam according to the unit length, and the replaced beam type rail bearing groove can be repeatedly used.
Drawings
Fig. 1 shows a schematic structural view of a novel beam-type embedded rail system according to an exemplary embodiment of the present invention.
Fig. 2 shows a schematic sectional structure of the cross section a-a in fig. 1.
Fig. 3 shows a schematic cross-sectional structure of the cross section B-B in fig. 1.
Fig. 4 shows a schematic cross-sectional view of the C-C cross section in fig. 1.
FIG. 5 illustrates a schematic structural view of another beam-type rail receiving groove in the novel beam-type drop-in rail system according to an exemplary embodiment of the present invention.
Fig. 6 shows a schematic structural view of another bearing platform in the novel beam-type embedded rail system according to an exemplary embodiment of the invention.
Fig. 7 shows a schematic structural view of an integral beam-type rail groove in the novel beam-type embedded rail system according to an exemplary embodiment of the present invention.
Description of reference numerals:
1-a bearing platform; 2-a joint filling stop dog; 3-beam rail bearing grooves; 4-beam sleeper; 5-longitudinal adjusting shim; 6-a caulking stopper bolt; 7-transverse adjusting shim; 8-height adjustment of the spacer; 9-joint filling glue; 10-an elastomer; 11-a track; 12-supporting piers; 13-integral support; 14-rail-accommodating groove.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The novel beam-type embedded rail system of the present invention will be described in detail.
Fig. 1 shows a structural schematic view of a novel beam-type embedded rail system according to an exemplary embodiment of the present invention, fig. 2 shows a sectional structural schematic view of a cross section a-a in fig. 1, fig. 3 shows a sectional structural schematic view of a cross section B-B in fig. 1, and fig. 4 shows a sectional structural schematic view of a cross section C-C in fig. 1.
As shown in fig. 1 to 4, according to an exemplary embodiment of the present invention, the novel beam-type embedded rail system includes a bearing platform 1, a beam-type rail groove 3, a gap stop 2, and a rail 11, and has a left and a right track to form a rail system capable of running a vehicle. The longitudinal direction in the present invention refers to the length direction of the track system, the transverse direction refers to the width direction of the track system, and the elevation mainly refers to the height of the track in the track system.
Specifically, the bearing platforms 1 are distributed on the roadbed supporting layer at intervals, and the bearing platforms can be arranged at intervals in a longitudinally discrete manner according to the corresponding modulus of the unit length of the beam-type rail supporting grooves 3 and are used for supporting the beam-type rail supporting grooves 3. The bearing platform 1 can be a prefabricated part or a cast-in-place part, and the bearing platform 1 is fixedly connected with a roadbed supporting layer.
Fig. 6 shows a schematic structural view of another bearing platform in the novel beam-type embedded rail system according to an exemplary embodiment of the invention. As shown in fig. 1 and 6, the platform 1 may be a unitary structure or a split structure including a lower support pier 12 and an upper integral support 13.
The beam type rail bearing groove 3 is erected on two adjacent bearing platforms 1 at two ends, the lower parts of the two ends are embedded into the bearing platforms 1 by a preset depth, and a gap is reserved at the beam end to form a ballast bed gap, so that longitudinal force can be effectively transmitted to the bearing platforms on one hand, and the rail can be conveniently cut and welded during replacement on the other hand. The beam type rail bearing groove 3 is preferably a prefabricated member and can be independently installed and constructed, installation control points are only arranged at the head end and the tail end and supported by a bearing platform, the two ends of the beam type rail bearing groove 3 are longitudinally and transversely limited by a U-shaped groove in the bearing platform, a gasket is arranged, replacement and disassembly are convenient, the bearing layer is optimized from surface contact to two-point contact, and construction efficiency can be effectively improved.
Fig. 7 shows a schematic structural view of an integral beam-type rail groove in the novel beam-type embedded rail system according to an exemplary embodiment of the present invention.
As shown in fig. 1 and 7, the two horizontal beam-type rail supporting grooves 3 in the line can be arranged in a split manner or in an integrated manner, so that the adjustment or replacement of a single rail in the line is facilitated when the rail supporting grooves are separated. The beam-type rail-receiving groove surface is provided with a rail-receiving groove 14 for receiving the rail 11 and the elastic body 10 and arranged along the length direction of the beam-type rail-receiving groove 3 to enable the installation of the embedded rail.
FIG. 5 illustrates a schematic structural view of another beam-type rail receiving groove in the novel beam-type drop-in rail system according to an exemplary embodiment of the present invention.
As shown in fig. 4 and 5, the beam-type rail supporting groove 3 of the present invention may be a plate-shaped beam with a planar bottom surface or a supporting beam with a supporting block on the bottom surface, and when the beam-type rail supporting groove 3 is a plate-shaped beam with a planar bottom surface (as shown in fig. 4), the novel beam-type embedded track system further includes beam sleepers 4 disposed below the middle portion of each beam-type rail supporting groove 3 to improve the vertical rigidity uniformity of the track; when the beam-type rail supporting groove 3 is a supporting beam with a supporting block on the bottom surface (as shown in fig. 5), the bottom surface of the supporting block is in surface contact with the bearing platform 1, and the effect of improving the vertical rigidity uniformity of the rail is also achieved.
And a longitudinal adjusting gasket 5 positioned at the end part of the beam-type rail bearing groove 3, a transverse adjusting gasket 7 positioned on the side surface of the beam-type rail bearing groove 3 and an elevation adjusting gasket 8 positioned on the bottom surface of the beam-type rail bearing groove 3 are arranged between the beam-type rail bearing groove 3 and the bearing platform 1 and are respectively used for horizontal position adjustment and elevation maintenance adjustment, and the adjustment and leveling can be quickly carried out during construction or maintenance. In addition, a damping pad can be arranged on the bearing platform 1 to realize secondary damping.
The joint filling stop dog 2 is arranged in the track bed seam reserved between the adjacent two ends of every two longitudinal adjacent beam type rail bearing grooves 3, and the joint filling stop dogs 2 which can be rapidly installed and disassembled are arranged at the head-tail butt joint of each beam type rail bearing groove 3 for splicing, so that the joint filling stop dog is used as an entry point when lines are overhauled and maintained. As shown in fig. 2, the positive stop 2 is connected to the platform 1 by a threaded connection, such as a positive stop bolt 6.
The rail 11 is continuously arranged in the beam-type rail supporting groove 3 and is wrapped and supported by the elastic body 10 filled in the beam-type rail supporting groove 3, namely, the rail of the embedded rail is continuously wrapped and continuously supported by the elastic body 10 in the beam-type rail supporting groove 3, so that the structural characteristics of the embedded rail are maintained, and the maintenance performance is improved.
Therefore, the vibration generated by the track 11 during the line operation can be attenuated for the first time through the elastic body 10 in the beam-type rail bearing groove 3, and the longitudinal adjusting gasket 5, the transverse adjusting gasket 7 and the elevation adjusting gasket 8 can be set to be special elastic gasket components for isolating the vibration.
Therefore, the beam-type rail bearing groove 3 is embedded into the bearing platform 1, so that the three-way load transmission is realized; and the surface contact is optimized to be two-point contact, and the load is dispersed to the lower foundation through the bearing platform 1. The installation and the later maintenance of beam type support rail groove are very convenient, and the system architecture is prefabricated structure mostly, can effectively reduce field work intensity. In addition, if the beam-type rail bearing grooves of the left rail and the right rail are respectively independent, the elastic body in the groove does not need to be damaged during line maintenance, and the beam-type rail bearing grooves can be integrally adjusted. When the line is maintained and overhauled, the track and the beam type rail bearing groove which are prefabricated in advance can be integrally replaced according to the requirement, and the construction efficiency is 3 times that of the traditional mode. Sufficient space is reserved at the position of the ballast bed seam, and the track thermite welding is carried out during line maintenance, so that the operation is convenient.
The invention also provides a construction process of the novel beam type embedded track system, which comprises the following steps.
Firstly, determining the position of a bearing platform in a paying-off mode and the like, binding a reinforcement cage of the bearing platform or directly installing the bearing platform, and placing a beam pillow according to the requirement. If a prefabricated bearing platform is adopted, the bearing platform can be directly installed; if a cast-in-place bearing platform is adopted, a bearing platform reinforcement cage is bound firstly. The beam sleeper is selected to be installed or not according to the structural form of the subsequent beam rail bearing groove.
And then hoisting the beam-type rail supporting groove to a required position, reserving a track bed gap and finely adjusting the elevation, horizontal transverse position and vertical position of the beam-type rail supporting groove. Wherein, can adopt jack or auxiliary fixtures to carry out the fine tuning in the bottom of beam type support rail groove.
After fine adjustment is carried out in place, the gap filling stop dog is installed in the track bed seam and is pre-fixedly connected with the beam type rail bearing groove, bearing platform concrete is poured or the gap filling stop dog and the bearing platform are directly fixed, and the beam sleeper is fixed according to requirements. Similarly, if a prefabricated bearing platform is adopted, the joint filling stop dog is directly installed and connected with the bearing platform; if the cast-in-place bearing platform is adopted, concrete of the bearing platform is poured, and the bearing platform can be formed by removing the template after the concrete achieves the template removal strength.
And finally, welding and laying the track in the beam type track bearing groove and pouring a high polymer material to form an elastic body to obtain the novel beam type embedded track system.
When the position of the rail needs to be adjusted, the beam-type rail bearing groove is jacked at a gap between the bearing platforms, meanwhile, the concrete of the bearing platforms at two ends of the beam-type rail bearing groove is locally chiseled off, the elevation and the horizontal transverse and longitudinal positions of the beam-type rail bearing groove are finely adjusted again, and high-strength mortar is poured to re-restrain the beam-type rail bearing groove after the adjustment is completed.
When the rail needs to be replaced, the rail is cut after the gap filling stop block is removed, the rail needing to be replaced and the corresponding beam type rail bearing groove are integrally removed, the beam type rail bearing groove which is prefabricated and integrated and comprises the rail and the elastic body is adopted for replacement and installation, and the gap filling stop block is arranged after the rail is welded at the position of the track bed seam after fine adjustment to complete replacement.
The present invention will be further described with reference to the following specific examples.
As shown in fig. 1 to 4, the novel beam-type embedded track system of this embodiment includes a bearing platform 1, a beam-type rail-bearing groove 3, a gap-filling stopper 2 and a track 11, the track 11 is continuously wrapped and continuously supported by an elastic body 10 in the beam-type rail-bearing groove 3, the bearing platform 1 is fixed on a roadbed supporting layer, the beam-type rail-bearing groove 3 is placed on the roadbed bearing platform 1 in a way of supporting from the front end to the rear end, a track bed gap (width is b) is reserved at the beam end, the bearing platform 1 is discretely arranged according to the arrangement of the corresponding modulus of the unit length (length is a) of the beam-type rail-bearing groove 3, a plurality of specifications of damping pads are arranged on the bearing platform 1, the beam-type rail-bearing grooves 4 on the left and right sides of the track are independently arranged, and the beam-type rail-bearing groove 4 adopts adjusting gaskets (5, 7, 8) at the two ends to adjust the elevation and the horizontal position of the beam-type rail-bearing groove 3. The elastic body which continuously wraps and supports the rail in the beam type rail bearing groove 4 can perform primary vibration reduction when the line vehicle runs, the adjusting gaskets (5, 7 and 8) can be set into special elastic gasket assemblies to isolate vibration for further vibration reduction, and the vibration reduction gasket arranged on the bearing platform can realize secondary vibration reduction.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (9)
1. A novel beam-type embedded rail system, comprising:
the bearing platforms are distributed on the roadbed supporting layer at intervals, and U-shaped grooves are formed in the bearing platforms;
the two ends of the beam-type rail bearing groove are erected on two adjacent bearing platforms, the lower parts of the two ends of the beam-type rail bearing groove are embedded into the bearing platforms to a preset depth, rail accommodating grooves which are used for accommodating rails and elastic bodies and are arranged along the length direction of the beam-type rail bearing groove are formed in the surface of the beam-type rail bearing groove, and the beam-type rail bearing groove and the bearing platforms are restrained through U-shaped grooves formed in the bearing platforms;
the gap filling stop block is arranged in a reserved ballast bed gap between two adjacent ends of every two adjacent longitudinal beam type rail supporting grooves;
and the rail is continuously arranged in the beam-type rail bearing groove and is wrapped and supported by the elastomer filled in the beam-type rail bearing groove.
2. The novel beam embedded rail system according to claim 1, wherein the bearing platform is a prefabricated member or a cast-in-place member, the bearing platform is fixedly connected with the roadbed supporting layer, and the gap filling stop block is connected with the bearing platform through a threaded connector.
3. The novel beam embedded rail system according to claim 2, wherein the bearing platform is of an integral structure or a split structure comprising a lower support pier and an upper integral support, and a shock pad is arranged on the bearing platform.
4. The novel beam-type embedded rail system as claimed in claim 1, wherein the transverse left and right beam-type rail supporting grooves are separately arranged or integrally arranged.
5. The novel beam-type drop-in track system according to claim 4, wherein the beam-type rail-supporting groove is a plate-shaped beam with a plane bottom surface or a support beam with a support block on the bottom surface, and when the beam-type rail-supporting groove is a plate-shaped beam with a plane bottom surface, the novel beam-type drop-in track system further comprises beam sleepers disposed below the middle portion of each beam-type rail-supporting groove; when the beam-type rail bearing groove is a supporting beam with a supporting block on the bottom surface, the bottom surface of the supporting block is in contact with the surface of the bearing platform.
6. The novel beam embedded rail system according to claim 1, wherein a longitudinal adjusting gasket located at the end of the beam-type rail supporting groove, a transverse adjusting gasket located at the side of the beam-type rail supporting groove and an elevation adjusting gasket located at the bottom of the beam-type rail supporting groove are arranged between the beam-type rail supporting groove and the bearing platform.
7. A construction process of a novel beam embedded track system according to any one of claims 1 to 6, characterized by comprising the following steps:
determining the position of a bearing platform, binding a reinforcing cage of the bearing platform or directly installing the bearing platform, and placing a beam pillow according to the requirement;
hoisting the beam-type rail supporting groove to a required position, reserving a track bed seam and finely adjusting the elevation, horizontal transverse position and longitudinal position of the beam-type rail supporting groove;
after fine adjustment is carried out in place, the gap filling stop dog is installed in the track bed seam and is pre-fixedly connected with the beam type rail bearing groove, bearing platform concrete is poured or the gap filling stop dog and the bearing platform are directly fixed, and a beam sleeper is fixed according to requirements;
and welding and laying the rails in the beam type rail bearing grooves and pouring a high polymer material to form an elastic body to obtain the novel beam type embedded rail system.
8. A maintenance process of a novel beam-type embedded rail system as defined in any one of claims 1 to 6, wherein when the rail position needs to be adjusted, the beam-type rail supporting groove is lifted up at the gap between the bearing platforms, the bearing platforms at the two ends of the beam-type rail supporting groove are partially chiseled off, the elevation and horizontal transverse and longitudinal positions of the beam-type rail supporting groove are readjusted, and high-strength mortar is poured to re-restrain the beam-type rail supporting groove after the adjustment is completed.
9. A maintenance process of a novel beam embedded track system according to any one of claims 1 to 6, characterized in that when the track needs to be replaced, the gap filling stop is removed and then the track is cut, the track to be replaced and the corresponding beam type rail supporting groove are integrally removed, the beam type rail supporting groove which is prefabricated and integrated and comprises the track and the elastomer is adopted for replacement and installation, and after the track is welded at the track bed seam after fine adjustment, the gap filling stop is installed to complete replacement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010558428.3A CN111663375B (en) | 2020-06-18 | 2020-06-18 | Novel beam type embedded track system and construction and maintenance process thereof |
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| CN202010558428.3A CN111663375B (en) | 2020-06-18 | 2020-06-18 | Novel beam type embedded track system and construction and maintenance process thereof |
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| CN113818289A (en) * | 2021-10-29 | 2021-12-21 | 同济大学 | Full-prefabricated assembled tramcar pile plate roadbed structure and installation method |
| CN114717882B (en) * | 2022-05-25 | 2022-08-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Full-assembled ballastless track capable of preventing train derailing and overturning |
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