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

Arched base pavement structure

A technology of pavement structure and base layer, applied in the direction of roads, roads, buildings, etc., can solve the problems of high construction technology level and high cost, and achieve the effect of facilitating later maintenance, repair and replacement, convenient construction, and eliminating fatigue damage.

Inactive Publication Date: 2016-12-07
CHANGAN UNIV
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of pavement structure is expensive and requires a high level of construction technology

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
  • Arched base pavement structure
  • Arched base pavement structure
  • Arched base pavement structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] As the junction of rigid abutment and flexible embankment, the transitional section of the road and bridge is prone to uneven settlement. The main difference is that the abutment at the lower part of the bridge is rigidly supported with little deformation, while the soil base 1 support of the road is flexible. Arch base 4 structure described in the present invention, as Figure 6 As shown, according to the calculation of road mechanics and the actual situation on site, the ratio of H / L is adjusted to gradually change the stiffness of the transition section of the road and bridge, thereby minimizing the settlement difference between the road and bridge. Layer 6cm medium-grained asphalt concrete + 8cm coarse-grained asphalt concrete + 2cm asphalt fiber seal + vault 15cm, arch foot 40cm lean concrete + 5% cement stabilized macadam + soil base 1. Use the present invention in such special sections as the road-bridge transition section, if the distance is shorter than 6m or t...

Embodiment 2

[0037] In the application of road sections with poor ground conditions such as soft ground and broken ground, when the ground conditions are poor and difficult to handle, as the aforementioned principle of strengthening the support member 8 is known, this can effectively prevent uneven settlement and weaken uneven or relatively The impact of the soil base 1 on the stability and bearing capacity of the upper structure, but considering the economy and the effectiveness of the support, strengthening support members 8 can be set at the bottom of the base 4 at regular intervals.

Embodiment 3

[0039] In the application of urban roads with many pipes and line segments, when municipal roads, the drainage pipe E is not used for drainage, but it is used to bury urban pipelines to prevent excessive pipelines and lines from affecting the city appearance. At the same time, the drainage pipe itself can be waterproof, and the drainage gravel cushion is used around the drainage pipe to prevent the groundwater from affecting the upper structure. It can also concentrate the upper part of the seepage, and then discharge the arched subgrade through the drainage ditch, so as not to affect the normal use of the road structure.

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an arched base pavement structure. The arched base pavement structure comprises two road shoulders, prestress pull rods, a soil base course, a subbase course, a base course, a middle course and an upper surface course, wherein the soil base course, the subbase course, the base course, the middle course and the upper surface course are arranged between the two road shoulders and distributed from bottom to top in sequence; the base course is of an arched structure; the soil base course is provided with a plurality of pairs of reinforcement supporting components; the two ends of the base course are located on two of the multiple pairs of reinforcement supporting components; and one ends of the prestress pull rods are fixed to the outer side surface of the first road shoulder, and the other ends of the prestress pull rods penetrate through the first road shoulder, the base course, the subbase course and the second road shoulder and are fixed to the outer side surface of the second road shoulder. According to the arched base pavement structure, bottom course tensile stress of an asphalt pavement or top surface compression strain of the soil base course can be effectively reduced, fatigue damage of the asphalt pavement is reduced, and the service life of the asphalt pavement is prolonged.

Description

technical field [0001] The invention belongs to the technical field of asphalt and relates to an arched base pavement structure. Background technique [0002] In my country, asphalt pavement is one of the main structural forms of roads, accounting for most of the market share. Most of them can maintain a good running state after they are completed and put into use. However, it cannot be ignored that there are still some asphalt pavements that appear in a short period of use, including cracking, wrapping, spalling, oil flooding, and rutting. In the early stage, more than 92% of the asphalt pavements have an average life cycle of about 7 to 8 years, which has a negative impact on driving comfort and safety, and causes a certain waste of economy and resources. [0003] my country's current "Asphalt Pavement Design Code" (JTG D50-2006) stipulates that: according to the economic and traffic development conditions and the position of the road in the road network, considering the ...

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): E01C3/02
CPCE01C3/02
Inventor 申爱琴王旭辉阮诚皓覃潇
Owner CHANGAN UNIV
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