CN114837022B - UHPC ballastless track - Google Patents
UHPC ballastless track Download PDFInfo
- Publication number
- CN114837022B CN114837022B CN202210619463.0A CN202210619463A CN114837022B CN 114837022 B CN114837022 B CN 114837022B CN 202210619463 A CN202210619463 A CN 202210619463A CN 114837022 B CN114837022 B CN 114837022B
- Authority
- CN
- China
- Prior art keywords
- plate
- elastic support
- track
- damping
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 43
- 238000013016 damping Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims description 11
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000035939 shock Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011359 shock absorbing material 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
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- 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
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a UHPC ballastless track, which comprises a prefabricated UHPC track plate, an elastic supporting base plate and a bottom plate, wherein the elastic supporting base plate is arranged below the prefabricated UHPC track plate, the bottom plate is arranged below the elastic supporting base plate, a plurality of elastic supporting pads are arranged on the lower end face of the prefabricated UHPC track plate, a plurality of grooves are formed in the upper end face of the elastic supporting base plate, damping components are arranged in the grooves, and the elastic supporting base plate is arranged above the damping components.
Description
Technical Field
The invention relates to the technical field of ballastless tracks, in particular to a UHPC ballastless track.
Background
The ballastless track structure is accepted by high-speed railways of various countries in the world by the characteristics of high smoothness, high stability, high durability and high reliability. Along with the rapid development of railway industry in China, the construction and operation mileage of ballastless tracks in China are in the first place in the world, and abundant experience is accumulated in the aspects of research design, construction operation and the like of ballastless track structures. The ballastless track type adopted by the high-speed railway mainly comprises CRTS I type, CRTS II type plate type, double-block type, CRTS III type plate type, turnout zone long sleeper embedded type ballastless track and the like, the track structure is basically mature at present, and a general reference picture is gradually formed.
The existing UHPC ballastless track has poor overall damping performance, and the track plate is easy to deform to influence the safety, so that the improvement is necessary.
Disclosure of Invention
The invention aims to provide a UHPC ballastless track so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the UHPC ballastless track comprises a prefabricated UHPC track plate, an elastic support base plate and a bottom plate, wherein the elastic support base plate is arranged below the prefabricated UHPC track plate, the bottom plate is arranged below the elastic support base plate, a plurality of elastic support pads are arranged on the lower end surface of the prefabricated UHPC track plate, a plurality of first grooves are formed in the upper end surface of the elastic support base plate, damping components are arranged in the plurality of first grooves, and the elastic support pads are arranged above the damping components;
the damping component comprises an upper damping plate, a lower damping plate, a plurality of upper sleeves and a plurality of lower sleeves, wherein the upper sleeves are perpendicular to the lower end face of the upper damping plate, the lower sleeves are perpendicular to the upper end face of the lower damping plate, and the upper sleeves and the lower sleeves are opposite to each other;
the shock absorption device also comprises a shock absorption spring body, wherein two ends of the shock absorption spring body are respectively fixed in the upper sleeve and the lower sleeve;
the upper end face of the bottom plate is provided with a second groove, the lower end face of the elastic support base plate is clamped into the second groove, and damping materials are filled between the elastic support base plate and the second groove;
the shock absorbing material comprises, by weight, 30-40 parts of nylon PA66 modified polyurethane, 10-20 parts of hydrogenated styrene-butadiene block copolymer, 5-15 parts of butadiene rubber, 4-10 parts of zinc stearate, 3-9 parts of carbon black and 2-6 parts of foaming agent;
one end of the prefabricated UHPC track plate is provided with a bulge, the other end of the prefabricated UHPC track plate is provided with a third groove, and two adjacent prefabricated UHPC track plates are connected through the bulge and the third groove in a clamping way;
the elastic support pads are made of nylon rubber materials.
Preferably, the UHPC ballastless track provided by the application, wherein the manufacturing method comprises the following steps:
A. firstly, a plurality of elastic support pads are arranged on the lower end face of a prefabricated UHPC track plate at equal intervals;
B. then fixing the bottom of the elastic support backing plate in a groove on the bottom plate, and filling buffer materials in the gap between the elastic support backing plate and the groove;
C. then placing the damping component in a groove on the upper end surface of the elastic supporting base plate;
D. and finally hoisting the prefabricated UHPC track plate above the elastic support base plate, and enabling the elastic support base plate to be in contact with the damping component.
Compared with the prior art, the invention has the beneficial effects that: the ballastless track has novel structural design, high overall structural strength and good damping performance, and can improve the structural stability and safety of the ballastless track; the lower end face of the prefabricated UHPC track plate is provided with a plurality of elastic supporting pads, and the elastic supporting pads are tightly attached to the damping component, so that the damping effect of the prefabricated UHPC track plate can be further improved, and deformation and damage are not easy to occur.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a shock absorbing assembly according to the present invention;
in the figure: the UHPC track plate 1, the elastic support backing plate 2, the bottom plate 3, the elastic support pad 4, the first groove 5, the damping component 6, the upper damping plate 7, the lower damping plate 8, the upper sleeve 9, the lower sleeve 10, the damping spring body 11, the second groove 12, the damping material 13, the protrusion 14 and the third groove 15.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a UHPC ballastless track, includes prefabricated UHPC track board 1, elastic support backing plate 2 and bottom plate 3, elastic support backing plate 2 installs in prefabricated UHPC track board 1 below, and prefabricated UHPC track board 1 one end sets up arch 14, prefabricated UHPC track board 1 other end sets up third recess 15, connects through protruding and recess block between two adjacent prefabricated UHPC track boards 1, bottom plate 3 installs in elastic support backing plate 2 below, a plurality of elastic support pads 4 are installed to prefabricated UHPC track board 1 lower terminal surface, and a plurality of elastic support pads 4 all adopt nylon rubber material to make, a plurality of first recesses 5 are seted up to elastic support backing plate 2 up to the up end, a plurality of all install damper 6 in the first recess 5, just elastic support pad 4 sets up in damper 6 top.
In the invention, the damping component 6 comprises an upper damping plate 7, a lower damping plate 8, a plurality of upper sleeves 9 and a plurality of lower sleeves 10, wherein the upper sleeves 9 are perpendicular to the lower end face of the upper damping plate 7, the lower sleeves 10 are perpendicular to the upper end face of the lower damping plate 8, and the upper sleeves 9 and the lower sleeves 10 are opposite to each other. And the shock absorption device also comprises a shock absorption spring body 11, wherein two ends of the shock absorption spring body 11 are respectively fixed in the upper sleeve 9 and the lower sleeve 10.
In the invention, the upper end surface of the bottom plate 3 is provided with the second groove 12, the lower end surface of the elastic support backing plate 2 is clamped into the second groove 12, and a damping material 13 is filled between the elastic support backing plate 2 and the second groove 12; the damping material 13 comprises, by weight, 30-40 parts of nylon PA66 modified polyurethane, 10-20 parts of hydrogenated styrene-butadiene block copolymer, 5-15 parts of butadiene rubber, 4-10 parts of zinc stearate, 3-9 parts of carbon black and 2-6 parts of foaming agent.
Working principle: the manufacturing method of the invention comprises the following steps:
A. firstly, a plurality of elastic support pads are arranged on the lower end face of a prefabricated UHPC track plate at equal intervals;
B. then fixing the bottom of the elastic support backing plate in a groove on the bottom plate, and filling buffer materials in the gap between the elastic support backing plate and the groove;
C. then placing the damping component in a groove on the upper end surface of the elastic supporting base plate;
D. and finally hoisting the prefabricated UHPC track plate above the elastic support base plate, and enabling the elastic support base plate to be in contact with the damping component.
In conclusion, the ballastless track has novel structural design, high overall structural strength and good damping performance, and can improve the structural stability and safety of the ballastless track; the lower end face of the prefabricated UHPC track plate is provided with a plurality of elastic supporting pads, and the elastic supporting pads are tightly attached to the damping component, so that the damping effect of the prefabricated UHPC track plate can be further improved, and deformation and damage are not easy to occur.
It should be noted that in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. The UHPC ballastless track comprises a prefabricated UHPC track plate (1), an elastic support base plate (2) and a base plate (3), and is characterized in that: the elastic support base plate (2) is arranged below the prefabricated UHPC track plate (1), the bottom plate (3) is arranged below the elastic support base plate (2), a plurality of elastic support pads (4) are arranged on the lower end face of the prefabricated UHPC track plate (1), a plurality of first grooves (5) are formed in the upper end face of the elastic support base plate (2), damping assemblies (6) are arranged in the plurality of first grooves (5), and the elastic support pads (4) are arranged above the damping assemblies (6);
the damping assembly (6) comprises an upper damping plate (7), a lower damping plate (8), a plurality of upper sleeves (9) and a plurality of lower sleeves (10), wherein the upper sleeves (9) are perpendicular to the lower end face of the upper damping plate (7), the lower sleeves (10) are perpendicular to the upper end face of the lower damping plate (8), and the upper sleeves (9) and the lower sleeves (10) are opposite to each other;
the shock-absorbing device further comprises a shock-absorbing spring body (11), wherein two ends of the shock-absorbing spring body (11) are respectively fixed in the upper sleeve (9) and the lower sleeve (10);
the upper end face of the bottom plate (3) is provided with a second groove (12), the lower end face of the elastic support base plate (2) is clamped into the second groove (12), and a damping material (13) is filled between the elastic support base plate (2) and the second groove (12);
the damping material (13) comprises, by weight, 30-40 parts of nylon PA66 modified polyurethane, 10-20 parts of hydrogenated styrene-butadiene block copolymer, 5-15 parts of butadiene rubber, 4-10 parts of zinc stearate, 3-9 parts of carbon black and 2-6 parts of foaming agent;
one end of the prefabricated UHPC track plate (1) is provided with a bulge (14), the other end of the prefabricated UHPC track plate (1) is provided with a third groove (15), and two adjacent prefabricated UHPC track plates (1) are connected through the bulge and the groove in a clamping way;
the elastic support pads (4) are made of nylon rubber.
2. The manufacturing method for the UHPC ballastless track disclosed by the claim 1 is realized, which is characterized in that: the manufacturing method comprises the following steps:
A. firstly, a plurality of elastic support pads are arranged on the lower end face of a prefabricated UHPC track plate at equal intervals;
B. then fixing the bottom of the elastic support backing plate in a groove on the bottom plate, and filling buffer materials in the gap between the elastic support backing plate and the groove;
C. then placing the damping component in a groove on the upper end surface of the elastic supporting base plate;
D. and finally hoisting the prefabricated UHPC track plate above the elastic support base plate, and enabling the elastic support base plate to be in contact with the damping component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619463.0A CN114837022B (en) | 2022-06-02 | 2022-06-02 | UHPC ballastless track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619463.0A CN114837022B (en) | 2022-06-02 | 2022-06-02 | UHPC ballastless track |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114837022A CN114837022A (en) | 2022-08-02 |
| CN114837022B true CN114837022B (en) | 2023-06-20 |
Family
ID=82573778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210619463.0A Active CN114837022B (en) | 2022-06-02 | 2022-06-02 | UHPC ballastless track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837022B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524307A (en) * | 2015-12-16 | 2016-04-27 | 合肥杰明新材料科技有限公司 | Nylon blended rubber material and preparation method thereof |
| CN107165001A (en) * | 2017-06-27 | 2017-09-15 | 天津银龙高科新材料研究院有限公司 | A kind of novel elastic Shock-absorption track plate |
| CN108914714B (en) * | 2018-08-20 | 2021-01-15 | 中铁第四勘察设计院集团有限公司 | Assembly type sleeper plate type or track plate type ballastless track structure and assembly method |
| CN109943059A (en) * | 2019-02-25 | 2019-06-28 | 常州汉唐文化传媒有限公司 | A kind of preparation method of athletic protective vibration-absorptive material |
| CN110172869A (en) * | 2019-05-30 | 2019-08-27 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | The construction method of assembled ballastless track system and assembled ballastless track system |
| CN110761119A (en) * | 2019-09-19 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Cold-pressed longitudinal-connection-containing assembly type ballastless track structure of vibration reduction section and assembly method |
| CN212175348U (en) * | 2019-09-26 | 2020-12-18 | 兰州交通大学 | Sleeper for ballastless track |
| CN114214876B (en) * | 2021-09-02 | 2023-06-02 | 中铁二院工程集团有限责任公司 | Anti-seismic ballastless track structure |
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2022
- 2022-06-02 CN CN202210619463.0A patent/CN114837022B/en active Active
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| Publication number | Publication date |
|---|---|
| CN114837022A (en) | 2022-08-02 |
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Application publication date: 20220802 Assignee: Jiangxi youlinsheng Construction Engineering Co.,Ltd. Assignor: JIANGXI LONGZHENG TECHNOLOGY DEVELOPMENT Co.,Ltd. Contract record no.: X2023980052860 Denomination of invention: A UHPC ballastless track Granted publication date: 20230620 License type: Exclusive License Record date: 20231218 |