Compound railway track and construction method thereof

A construction method and composite technology, which can be used in the joints of roads, tracks, and rails, etc., can solve the problems of complex construction, high cost, and long process time.

Inactive Publication Date: 2005-09-14
钟志勇
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, ordinary seamless lines are transitioned from quasi-gauge lines, and ultra-long seamless lines ar

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
  • Compound railway track and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Introduce the present invention below in conjunction with accompanying drawing and embodiment.

[0011] refer to figure 1 , the sleepers 4 arranged on the ballast bed 5 are laid with the steel rail 2 leaving the gap 6, which is a common quasi-gauge circuit. On the rail head of steel rail 2, is covered with a seamless rail 1. Below the seamless rail, there is a groove matching the 2 rail heads of the steel rail. The seamless rail is about 90mm wide, 25-45mm high, and 10-15mm deep in the groove. The joint part of the seamless rail 1 and the middle position of each steel rail 2 is a weld 3, and the weld seam is about 1m long, so that the seamless rail and the steel rail are firmly combined as a whole.

[0012] The construction method of the composite rail is: heat the seamless rail 1 to be laid so that its temperature is 20-35°C higher than the local annual maximum temperature. for welding.

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 relates to a complex railway rail that covers a seamless rail on the common quasi rail steel railhead that has seam on it, and jointing at the middle of the connection section to make the seamless rail and the steel rail combine together firmly. The construction method is the following steps: heating the seamless rail to the temperature above the highest in the whole year, jointing the middle section of the seamless rail and the steel rail. Pre-stressing force would be formed between seamless and the middle point of the corresponding two steel railways. The pre-stressing force would form balance force against with portrait resistance of ballast bed, and the seamless rail would be tightened. And the tightening state would change followed the temperature changing of environment. Thus, the one-off changing toward ultra length rail from common railway would be realized.

Description

technical field [0001] The invention relates to a railway track and a construction method thereof. Background technique [0002] At present, the known seamless railway line is to weld the rails together to form long rails, and lock the rail temperature under suitable air temperature conditions. It is a seamless line formed by using the resistance of the ballast bed to balance the huge temperature force in the rails. . It can be seen that the realization of the seamless track has higher requirements for the ballast bed. Generally speaking, ordinary seamless lines are transitioned from quasi-gauge lines, and ultra-long seamless lines are transitioned from ordinary seamless lines, so the process takes a long time, high cost, and complicated construction. Contents of the invention [0003] The object of the present invention is to provide a composite railway track and a construction method to meet the requirement of constructing an ult...

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
IPC IPC(8): E01B11/46
Inventor 钟志勇
Owner 钟志勇
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap