Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

an under-rail foundation

A basic and track technology, applied in the field of railway transportation, can solve the problems of difficult replacement of ballastless tracks, high vibration and noise, and achieve the effects of improving bending resistance, reducing vibration and noise, and increasing service life.

Active Publication Date: 2020-08-25
SHIJIAZHUANG TIEDAO UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an under-rail foundation to solve the technical problems of difficult ballastless track replacement and high vibration and noise during train operation in the prior art. It has the advantages of simple structure, fast replacement speed, and track geometry adjustment Strong ability and has the function of shock and noise reduction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • an under-rail foundation
  • an under-rail foundation
  • an under-rail foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" and "several" mean two or more, unless otherwise specifically defined.

[0029] Please also refer to Figure 1 to Figure 4 , the under-rail foundation provided by...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an under-rail foundation, belonging to the technical field of railway transportation, comprising a concrete track slab arranged under the track for supporting the track, a steel track slab arranged under the concrete track slab and fixedly connected by a plurality of connecting ribs A box girder, a base set at the lower part of the steel box girder for supporting the steel box girder, and an elastic support set in the lower cavity of the steel box girder for adjusting the height of the steel box girder. The under-rail foundation provided by the invention combines and connects the concrete track slab and the steel box girder structure; The longitudinal and transverse bending resistance and tensile capacity of the track slab are improved, and the steel box girder structure increases the elasticity of the track, reduces the vibration of the track and reduces the technical effect of noise.

Description

technical field [0001] The invention belongs to the technical field of railway transportation, and more specifically relates to an under-rail foundation. Background technique [0002] At present, the main ballastless track structures of my country's high-speed railways include CRTS Ⅰ double-block ballastless track, CRTS Ⅱ double-block ballastless track, CRTS Ⅰ slab ballastless track, CRTS Ⅱ slab ballastless track and CRTS Ⅲ slab ballastless track. But no matter what kind of track structure, the concrete track slab is the main component of the ballastless track. [0003] Although the skylight time of high-speed railways at night is generally not less than 240 minutes (section 4.2 of "Code for Design of High-Speed ​​Railways (TB10621-2009)", the effective maintenance time is still relatively tight, and most maintenance materials Failure to reach the design strength within this time period will affect the long-term service performance of the ballastless track. . [0004] In m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B2/00
CPCE01B1/00E01B2/00
Inventor 王建西张强陈国良袁玲妍王志臣吴景龙
Owner SHIJIAZHUANG TIEDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com