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

Anti-upheaval structure of ballastless track tramcar in strong expansive soil or expansive rock section

A ballastless track and tram technology, applied in the field of strong expansive soil or expansive rock engineering, can solve the problems of poor reinforcement effect of anchor cables or bolts, and the foundation bed is affected by groundwater fluctuations. Good building effect and stable filler properties

Pending Publication Date: 2020-06-19
CHINA RAILWAY ERYUAN ENG GRP CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide strong expansive soil or Anti-uplift structure of ballastless track and tram in expansive rock section

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
  • Anti-upheaval structure of ballastless track tramcar in strong expansive soil or expansive rock section
  • Anti-upheaval structure of ballastless track tramcar in strong expansive soil or expansive rock section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Such as Figure 1-2 As shown, this embodiment provides an anti-uplift structure for a ballastless track tram in a section of strong expansive soil or expansive rock, including a track structure 1, a subgrade bottom layer 2, a replacement layer 3, a deep drainage blind ditch and a composite waterproof and drainage layer.

[0028] The base layer 2 is located on the strong expansive soil or expansive rock foundation 6, and the track structure 1 is located on the base layer 2.

[0029] During the construction process, the depth of the layer strongly affected by the atmosphere is determined according to the depth of the geological body at the construction site.

[0030] The replacement layer 3 is filled on the strong expansive soil or expansive rock foundation 6 and is located below the layer strongly affected by the atmosphere. The filler in Group A of the bottom layer of the bed adopts gravel soil and gravel soil with good gradation and fine particle content less than 15%...

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 discloses an anti-upheaval structure of a ballastless track tramcar in a strong expansive soil or expansive rock section. The structure comprises a replacement filling layer, a compositewaterproof and drainage layer and a deep drainage blind ditch, wherein the replacement filling layer is filled on strong expansive soil or expansive rock foundation, a subgrade bed bottom layer groupA filler and a subgrade bed bottom layer group B filler are adopted in the replacement filling layer, and a composite waterproof and drainage layer is located between the replacement filling layer and the strong expansive soil or the expansive rock foundation and used for guiding the underground water into a deep drainage blind ditch. The structure is advantaged in that the strong expansive soilor expansive rock with high expansibility and super-consolidation property is filled in the subgrade bed bottom layer group A filler and the subgrade bed bottom layer group B filler, when meeting thewater or excavating road cutting, the upwarp force and the deformability can be reduced, certain stability is realized, the underground water is guided into the deep drainage blind ditch in time through the composite waterproof and drainage layer, the underground water is prevented from permeating into the strong expansive soil or the expansive rock to cause upheaval, an upheaval problem caused bywater swelling of the strong expansive soil or expansive rock is effectively solved, the requirement for smoothness is met, the structure is safe and reliable, and construction is convenient and fast.

Description

technical field [0001] The invention relates to the field of strong expansive soil or expansive rock engineering, in particular to an anti-uplift structure for a ballastless track tram in a section of strong expansive soil or expansive rock. Background technique [0002] Strong expansive soil or expansive rock has strong expansibility and super-consolidation, and will generate a large upward arching force when encountering water or cutting unloaded excavation. Construction will face a technical problem. [0003] In the prior art, when the ballastless track of the tram passes through the expansive soil or expansive rock section, anchor cables and bolts are generally used to reinforce the foundation, but when the expansion force is large and the groundwater level is shallow, it will face The reinforcement effect is not good, and the foundation bed is affected by groundwater fluctuations. Contents of the invention [0004] The purpose of the present invention is to provide ...

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 Applications(China)
IPC IPC(8): E01B1/00E01B2/00
CPCE01B1/00E01B1/008E01B2/00E01B2/006
Inventor 谯春丽薛元蒋恒王智猛姜瑞雪刘菀茹张东卿
Owner CHINA RAILWAY ERYUAN ENG GRP 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
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