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WO2021082005A1 - Structure de rail - Google Patents

Structure de rail Download PDF

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Publication number
WO2021082005A1
WO2021082005A1 PCT/CN2019/115137 CN2019115137W WO2021082005A1 WO 2021082005 A1 WO2021082005 A1 WO 2021082005A1 CN 2019115137 W CN2019115137 W CN 2019115137W WO 2021082005 A1 WO2021082005 A1 WO 2021082005A1
Authority
WO
WIPO (PCT)
Prior art keywords
track
precast
track bed
assembly
bed
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.)
Ceased
Application number
PCT/CN2019/115137
Other languages
English (en)
Chinese (zh)
Inventor
肖俊恒
王红
郄录朝
徐旸
许永贤
杜香刚
刘海涛
赵磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Railway Engineering Research Institute of CARS
Original Assignee
Railway Engineering Research Institute of CARS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Railway Engineering Research Institute of CARS filed Critical Railway Engineering Research Institute of CARS
Priority to PCT/CN2019/115137 priority Critical patent/WO2021082005A1/fr
Publication of WO2021082005A1 publication Critical patent/WO2021082005A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to the field of train tracks, in particular to a track structure.
  • High-speed passenger transportation and heavy freight transportation are the main directions for the development of railway technology, and the track structure is directly in contact with the train in operation, and its service status will directly affect the operational safety of the train.
  • Ballastless track has the advantages of strong integrity, good stability, easy maintenance of track geometry, small track deformation, and less maintenance work.
  • the project investment cost is high, the on-site construction is complicated and the technical requirements are high, and the wheel and rail noise is large and the The impact of environmental vibration is prominent, and the ballastless track is mostly laid on the foundation of the bridge. Under the action of temperature load, the ballastless track and the underlying foundation will interact significantly, and it is extremely difficult to repair once a problem occurs.
  • ballast bed In order to maintain the geometric state and elasticity of the ballasted track, it is necessary to carry out continuous maintenance and repair work (tamping and cleaning operations), and the maintenance work itself will bring about the ballast bed. Certain side effects, such as the crushing of ballast particles caused by tamping, will further aggravate the degradation of the ballast bed.
  • the main purpose of the present invention is to provide a track structure to solve the problem of difficult maintenance of the track structure in the prior art.
  • the present invention provides a track structure, including: precast ballast bed assemblies, the number of precast ballast bed assemblies is multiple, the plurality of precast ballast bed assemblies are arranged at intervals along a first predetermined direction; the steel rails are fixedly arranged in a plurality of Prefabricated track bed components.
  • the prefabricated track bed assembly includes: a curing track bed, two curing track beds, the two curing track beds are spaced apart along a second predetermined direction, the first predetermined direction and the second predetermined direction are perpendicular to each other; sleepers, the first ends of the sleepers are provided On one curing track bed, the second end of the sleeper is arranged on the other curing track bed, and the steel rail is arranged on the sleeper.
  • the cured track bed is a polyurethane cured track bed.
  • the prefabricated track bed assembly further includes a fastener, at least part of the fastener passes through the rail and the sleeper to fix the rail to the sleeper.
  • the track structure further includes a packing layer, and a packing layer is arranged between each two adjacent precast track bed components, so as to fill the gap between each adjacent two precast track bed components through the packing layer.
  • the filling layer includes ballast.
  • the track structure further includes: a drainage assembly, the drainage assembly is arranged on the side of the precast track bed assembly, and the water inlet end of the drainage assembly is connected with the precast track bed assembly to drain the water in the precast track bed assembly through the drainage assembly.
  • the track structure further includes: an adjustment layer, the adjustment layer is arranged on the base surface, the adjustment layer is arranged under the precast track bed assembly and connected with the precast track bed assembly, and the height of the adjustment layer relative to the base surface is adjustable. To adjust the height of the precast track bed component relative to the base surface.
  • the drainage assembly includes a drainage groove, the drainage groove is arranged on the surface of the adjustment layer away from the base surface, the drainage groove extends along a second predetermined direction, and the first predetermined direction is perpendicular to the second predetermined direction.
  • the track structure further includes a protective layer, the protective layer is arranged on the outer side of the precast track bed assembly, and the drainage groove extends to the surface of the protective layer along the second predetermined direction.
  • the track structure includes a precast track bed assembly and a steel rail.
  • There are multiple precast track bed assemblies the plurality of precast track bed assemblies are arranged at intervals along a first predetermined direction, and the steel rails are fixedly arranged on the plurality of precast track bed assemblies, wherein
  • the prefabricated track bed components are prefabricated in the workshop before laying on site. The cleanliness and compactness of the ballast can be accurately controlled.
  • the multiple prefabricated track bed components are arranged at intervals to facilitate the maintenance and repair of the prefabricated track bed components. The maintenance solves the problem of difficult maintenance and repair of the track structure in the prior art.
  • Figure 1 shows a schematic structural diagram of an embodiment of a track structure according to the present invention
  • Figure 2 shows a schematic structural view of the track structure according to the present invention from a first perspective
  • Figure 3 shows a schematic structural view of the track structure according to the present invention from a second perspective
  • Fig. 4 shows a schematic structural view of an embodiment of a precast track bed assembly of the track structure according to the present invention.
  • the present invention provides a track structure, please refer to Figures 1 to 4, including: precast ballast bed assembly 10, there are multiple precast ballast bed assemblies 10, the plurality of precast ballast bed assemblies 10 are arranged at intervals along a first predetermined direction; steel rail 20 , The steel rail 20 is fixedly arranged on a plurality of precast track bed assemblies 10.
  • the track structure provided according to the present invention includes a precast track bed assembly 10 and a steel rail 20.
  • a precast track bed assembly 10 There are multiple precast track bed assemblies 10, the plurality of precast track bed assemblies 10 are arranged at intervals along a first predetermined direction, and the steel rails 20 are fixedly arranged on the plurality of precast track beds.
  • the prefabricated track bed assembly is prefabricated in the workshop before the site is laid. The cleanliness and compactness of the ballast can be accurately controlled.
  • the multiple precast track bed assemblies 10 are arranged at intervals to facilitate subsequent alignment. The maintenance and maintenance of the precast track bed assembly 10 solves the problem of difficult maintenance and maintenance of the track structure in the prior art.
  • the prefabricated track bed assembly 10 includes: a curing track bed 11, two curing track beds 11, the two curing track beds 11 are spaced apart along a second predetermined direction, the first predetermined direction and the second predetermined direction are perpendicular to each other; sleepers 12, sleepers The first end of 12 is set on one solidified track bed 11, the second end of the sleeper 12 is set on another solidified track bed 11, and the steel rail 20 is set on the sleeper 12.
  • the cured track bed 11 is formed by bonding the ballast with a cured material.
  • the cured material includes materials such as polyurethane, modified asphalt, and cement-based composite materials. Under the load of train shock and vibration, the cured material can reduce the ballast particles. The ballast deterioration caused by the mutual displacement between the ballasts. At the same time, because the gaps between the gravel particles in the ballast are filled by the solidified material, the contact stress between the various gravel particles is reduced, and the ballast is slowed down. Broken and pulverized, extending the service life of the track structure.
  • the cured track bed 11 is a polyurethane cured track bed.
  • the prefabricated track bed assembly 10 further includes a fastener 13, at least part of which passes through the rail 20 and the sleeper 12 to fix the rail 20 to the sleeper 12.
  • a fastener 13 at least part of which passes through the rail 20 and the sleeper 12 to fix the rail 20 to the sleeper 12.
  • the track structure further includes: a packing layer 30, and a packing layer 30 is arranged between each two adjacent precast track bed assemblies 10, so as to fill each adjacent two precast track bed assemblies through the packing layer 30
  • the distance between each adjacent two precast track bed assemblies 10 is 5 cm to 20 cm, so as to replace and maintain each precast track bed assembly 10 to avoid interference and extrusion between two adjacent precast track bed assemblies 10 , Resulting in deformation of the track.
  • the filling layer 30 includes ballast.
  • the track structure further includes: a drainage assembly 40, which is arranged on the side of the precast track bed assembly 10, and the water inlet end of the drainage assembly 40 is in communication with the precast track bed assembly 10 to pass through the drainage assembly 40
  • the water in the precast ballast bed assembly 10 is discharged.
  • the drainage performance of the track structure is increased to prevent the precast ballast bed assembly 10 from being deformed by the accumulation of water. At the same time, it can also prevent the traditional ballast bed from intruding dust from the outside.
  • the drainage assembly 40 does not require daily maintenance such as tamping and cleaning. The operation saves the maintenance and repair costs of the track, and also avoids the secondary damage to the ballast particles caused by the tamping and cleaning operations, and prolongs the service life of the track structure.
  • the track structure further includes: an adjustment layer 50, which is arranged on the base surface, and the adjustment layer 50 is arranged below the precast track bed assembly 10 and connected to the precast track bed assembly 10, and the adjustment layer 50 is relative to the base.
  • the height of the surface is adjustable to adjust the height of the precast track bed assembly 10 relative to the base surface. Such a setting can facilitate the later maintenance of the precast track bed assembly 10, and the adjustment layer 50 ensures that each precast track bed assembly 10 is at the same height.
  • the drainage assembly 40 includes a drainage groove 41 disposed on the surface of the adjustment layer 50 away from the base surface, and the drainage groove 41 extends along a second predetermined direction.
  • the direction is vertical. Specifically, there is a predetermined angle between the drainage groove 41 and the horizontal surface, so that the accumulated water is discharged along the drainage groove 41.
  • the track structure further includes a protective layer 60 arranged on the outer side of the precast track bed assembly 10, and the drainage groove 41 extends to the surface of the protective layer 60 in the second predetermined direction. It should be noted here that, as shown in FIG. 3, the protective layer 60 surrounds at least part of the precast track bed assembly 10 to protect the precast track bed assembly 10 and enhance the stability of the track structure.
  • the track structure provided according to the present invention includes a precast track bed assembly 10 and a steel rail 20.
  • a precast track bed assembly 10 There are multiple precast track bed assemblies 10, the plurality of precast track bed assemblies 10 are arranged at intervals along a first predetermined direction, and the steel rails 20 are fixedly arranged on the plurality of precast track beds.
  • the prefabricated track bed assembly is prefabricated in the workshop before the site is laid. The cleanliness and compactness of the ballast can be accurately controlled.
  • the multiple precast track bed assemblies 10 are arranged at intervals to facilitate subsequent alignment. The maintenance and maintenance of the precast track bed assembly 10 solves the problem of difficult maintenance and maintenance of the track structure in the prior art.
  • spatially relative terms can be used here, such as “above”, “above”, “above the surface”, “above”, etc., to describe as shown in the figure Shows the spatial positional relationship between one device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the drawing is turned upside down, then a device described as “above other devices or structures” or “above other devices or structures” will then be positioned as “below the other devices or structures” or “on Under other devices or structures”. Thus, the exemplary term “above” can include both orientations “above” and “below”. The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here will be explained accordingly.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

L'invention concerne une structure de rail. La structure de rail comprend : des ensembles à lit de ballast préfabriqués, une pluralité d'ensembles à lit de ballast préfabriqués étant disposés et agencés à certains intervalles dans une première direction prédéterminée ; et un rail en acier, le rail en acier étant disposé à demeure sur la pluralité d'ensembles à lit de ballast préfabriqués. Par conséquent, le problème posé dans l'état de la technique par la difficulté d'entretien et de réparation d'une structure de rail est ainsi résolu.
PCT/CN2019/115137 2019-11-01 2019-11-01 Structure de rail Ceased WO2021082005A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/115137 WO2021082005A1 (fr) 2019-11-01 2019-11-01 Structure de rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/115137 WO2021082005A1 (fr) 2019-11-01 2019-11-01 Structure de rail

Publications (1)

Publication Number Publication Date
WO2021082005A1 true WO2021082005A1 (fr) 2021-05-06

Family

ID=75715725

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/115137 Ceased WO2021082005A1 (fr) 2019-11-01 2019-11-01 Structure de rail

Country Status (1)

Country Link
WO (1) WO2021082005A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114086434A (zh) * 2021-11-29 2022-02-25 中铁第四勘察设计院集团有限公司 一种纵向装配的预制板式轨道

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102561114A (zh) * 2010-12-16 2012-07-11 拜耳材料科技(中国)有限公司 一种聚氨酯铁路道床、及其制备方法和应用
CN204959479U (zh) * 2015-09-25 2016-01-13 中铁二十三局集团轨道交通工程有限公司 一种嵌入式框架轨道板及其轨道结构
CN205934593U (zh) * 2016-08-23 2017-02-08 吴永芳 一种装配板式轨道结构
CN107190583A (zh) * 2017-05-25 2017-09-22 中国铁道科学研究院铁道建筑研究所 聚氨酯固化道床及其制作方法
CN208072093U (zh) * 2018-04-15 2018-11-09 中铁二院(成都)建设发展有限责任公司 站场路基无砟轨道浅埋翼墙式桩板结构构造
EP3486369A1 (fr) * 2017-11-21 2019-05-22 Sateba Systeme Vagneux Dalle préfabriquée pour voie ferrée, traverse associée et procédé d'installation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102561114A (zh) * 2010-12-16 2012-07-11 拜耳材料科技(中国)有限公司 一种聚氨酯铁路道床、及其制备方法和应用
CN204959479U (zh) * 2015-09-25 2016-01-13 中铁二十三局集团轨道交通工程有限公司 一种嵌入式框架轨道板及其轨道结构
CN205934593U (zh) * 2016-08-23 2017-02-08 吴永芳 一种装配板式轨道结构
CN107190583A (zh) * 2017-05-25 2017-09-22 中国铁道科学研究院铁道建筑研究所 聚氨酯固化道床及其制作方法
EP3486369A1 (fr) * 2017-11-21 2019-05-22 Sateba Systeme Vagneux Dalle préfabriquée pour voie ferrée, traverse associée et procédé d'installation
CN208072093U (zh) * 2018-04-15 2018-11-09 中铁二院(成都)建设发展有限责任公司 站场路基无砟轨道浅埋翼墙式桩板结构构造

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114086434A (zh) * 2021-11-29 2022-02-25 中铁第四勘察设计院集团有限公司 一种纵向装配的预制板式轨道
CN114086434B (zh) * 2021-11-29 2023-11-28 中铁第四勘察设计院集团有限公司 一种纵向装配的预制板式轨道

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