Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-freeze thawing stable roadbed structure and construction process in seasonal frozen region

A construction technology and technology in seasonally frozen areas, applied in the field of stable roadbed structure and construction technology, can solve problems such as road damage, achieve the effects of avoiding deformation and damage, reducing road damage, and improving road surface strength

Active Publication Date: 2019-04-26
ZHANGJIAKOU ROAD & BRIDGE CONSTR GRP CO LTD
View PDF7 Cites 0 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 stable subgrade structure and construction technology for preventing freezing and thawing in seasonally frozen areas, so as to solve the technical problem existing in the prior art that roads in seasonally frozen areas are damaged during periodic freezing and thawing

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-freeze thawing stable roadbed structure and construction process in seasonal frozen region

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] 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.

[0029] see figure 1 , a stable subgrade structure and construction process for preventing freezing and thawing in seasonally frozen areas provided by the present invention will now be described.

[0030] The stable roadbed structure for preventing freezing and thawing in the seasonally frozen region includes a salt-doped road base 10 containing inorganic salt admixture, an anti-seepage layer 20 arranged on the upper layer of the salt-infused road base 10, and an upper layer arranged on the anti-seepage layer 20 30 of the first road grass.

[0031] Compared with t...

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 anti-freeze thawing stable roadbed structure and a construction process in a seasonal frozen region, and belongs to the technical field of road construction. According to thestable roadbed structure, due to a salt-doped roadbed layer containing inorganic salt doping materials, the melting point of moisture in the salt-doped roadbed layer can be reduced, freeze-expansioninside the roadbed can be avoided, and the pavement is prevented from being deformed or broken; an impermeable layer and a first roadbed layer are arranged on the salt-doped roadbed layer, the impermeable layer is used for preventing moisture containing inorganic salt doping materials from entering the first roadbed layer and corroding the first roadbed layer and pavement, moisture increase can bestopped, the first roadbed layer is kept at a relatively low level of water content, damage of cyclic freeze-thawing on the first roadbed layer and pavement can be weakened.

Description

technical field [0001] The invention belongs to the technical field of road construction, and more specifically relates to a stable subgrade structure and construction technology for preventing freezing and thawing in seasonally frozen regions. Background technique [0002] Seasonally frozen soil area, referred to as the seasonally frozen area, the soil surface in the seasonally frozen area will produce periodic freezing and thawing phenomena in seasonal changes. Because water will expand after freezing, and the roadbed is directly paved on the soil layer and contains a lot of water, roads in seasonally frozen areas are often damaged by periodic freezing and thawing, and their service life drops sharply. Contents of the invention [0003] The purpose of the present invention is to provide a stable subgrade structure and construction technology for preventing freezing and thawing in seasonally frozen areas, so as to solve the technical problem existing in the prior art that...

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): E01C11/24E01C11/22
CPCE01C11/225E01C11/227E01C11/245
Inventor 陈志杰郑瑞海杨鹏程兰桂芳左少淼赵丽娟李海燕李建海寇建国贾河赵建王永杰
Owner ZHANGJIAKOU ROAD & BRIDGE CONSTR GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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