Railway roadbed structure for reducing roadbed settlement deformation through opposite-pulling rib U-shaped groove

A technology of railway subgrade and U-shaped groove, which is applied in the directions of roads, tracks, buildings, etc., can solve the problems of large settlement of railway road basic body, large area occupation and large proportion of foundation treatment costs, so as to reduce settlement and land occupation. area, reducing uneven settlement, and the effect of material environmental protection

Pending Publication Date: 2018-11-06
XIAN RAILWAY SURVEY & DESIGN INST CO LTD
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a railway subgrade structure that reduces the subsidence and deformation of the subgrade with the U-groove of the tension bar, which overcomes the

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
  • Railway roadbed structure for reducing roadbed settlement deformation through opposite-pulling rib U-shaped groove

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in detail below in combination with specific embodiments.

[0020] The present invention relates to a railway subgrade structure for reducing the subsidence and deformation of the U-shaped groove of the tension material. The bottom of the railway subgrade structure is provided with a reinforced concrete U-shaped groove 5 with the notch upward, and the reinforced concrete U-shaped groove 5 is filled with The roadbed filling material 7 is built, and the top of the roadbed filling material 7 is flush with the top edge of the reinforced concrete U-shaped groove 5, and the railway ballast 3 is arranged on the top, and the railway track structure 2 is arranged above the railway ballast 3. A layer of flexible water-proof material 4 is arranged on the top surface of the roadbed landfill material 7, which adopts two cloths and one membrane geotextile or a composite water-proof board.

[0021] The reinforced concrete U-shaped groove 5 is ho...

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 railway roadbed structure for reducing roadbed settlement deformation through an opposite-pulling rib U-shaped groove. The U-shaped reinforced concrete groove with an upwardnotch is formed in the bottom and filled with a roadbed stacking and filling material, the top of the roadbed stacking and filling material is flush with the top edge of the U-shaped reinforced concrete groove and provided with railway ballast, and a railway track structure is arranged above the railway ballast; and opposite-pulling ribs are transversely arranged in the U-shaped reinforced concrete groove, and the two ends of each opposite-pulling rib extend out of the U-shaped reinforced concrete groove. On the one hand, lateral deformation of a roadbed body is greatly restrained through theU-shaped opposite-pulling reinforced concrete groove, roadbed body stuffing is stacked and filled or concrete is poured within the limited space with lateral confinement, and roadbed body settlementis controlled to a great degree; and on the other hand, the occupied width of the bottom of a roadbed is greatly reduced, and plenty of requisition land and plenty of foundation treatment area are saved.

Description

technical field [0001] The invention belongs to the technical field of railway engineering, and in particular relates to a railway roadbed structure for reducing the subsidence deformation of the roadbed for U-shaped grooves of tension bars. Background technique [0002] At present, most railway subgrades are filled with bulk materials according to a certain degree of density and a stable slope ratio, supplemented by ballast slope protection. Due to the limited compaction of bulk materials and the current level of construction technology, large settlements will often occur in the subgrade body, and the side slope of the subgrade (especially at the edge) will slump or subside. Sometimes when the foundation treatment is uneven, The uneven settlement and weight of the railway subgrade strictly limits the application range of the railway subgrade form in high-grade railways. Contents of the invention [0003] The purpose of the present invention is to provide a railway subgra...

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): E01B2/00
CPCE01B2/00
Inventor 赵振荣李森王雷白超能沈远
Owner XIAN RAILWAY SURVEY & DESIGN INST CO LTD
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