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

Method for predicting asphalt road service life auording to road surface planeness

A technology for asphalt pavement and smoothness, which is applied in the field of timely evaluation of pavement quality, and can solve problems such as failure to consider dynamic load effects and early failure of pavement service life.

Inactive Publication Date: 2007-04-11
CHONGQING JIAOTONG UNIVERSITY
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of high-grade highways, the service life of the pavement often occurs early damage before the design service life is reached. One of the most important factors is that the actual dynamic load is not considered.

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
  • Method for predicting asphalt road service life auording to road surface planeness
  • Method for predicting asphalt road service life auording to road surface planeness
  • Method for predicting asphalt road service life auording to road surface planeness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048]Predicting the life of asphalt pavement from the roughness of the road surface includes three main parts: the road surface model, the vehicle vibration model, and the permanent deformation. Among them, the vehicle vibration model is the key, which directly affects the size of the permanent deformation and the resulting smoothness. The method for estimating the service life of asphalt pavement from the roughness of the road surface is specifically: 1) establish a road surface model, measure and calculate the smoothness of the road surface; 2) establish a vehicle vibration model, and calculate the driving dynamic load according to the smoothness of the road surface; Load and pavement structural parameters, traffic loads, and environmental parameters are used to calculate the permanent deformation of the pavement; 4) Calculate the change in the road surface roughness; 5) Estimate the service life of the road surface from the change in the smoothness.

[0049] The establishme...

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 present invention is method of predicting service life of asphalt road based on the road surface flatness. The technological scheme includes the following steps: 1. establishing road surface model and measuring and calculating the road surface flatness; 2. establishing automobile vibration model and calculating the dynamic automobile load based on the road surface flatness; 3. calculating the permanent deformation of road surface based on the obtained dynamic automobile load, the road structural parameters, the traffic load and the environmental parameters; 4. calculating the change in road flatness; and 5. predicting the service life of road based on the change in road flatness. The present invention may be used in evaluating the road quality to provide reference for road maintenance and repair.

Description

technical field [0001] The invention relates to a timely evaluation method for road surface quality, in particular to a method for estimating the service life of asphalt pavement from the smoothness of the road surface. Background technique [0002] With the increase of traffic volume, the proportion of pavement damage caused by permanent deformation is increasing: for example, in the United States, the survey of pavement damage in various states initiated by AASHTO in the 1970s showed that on major interstate highways, due to permanent deformation The resulting pavement damage accounts for about 30%, while Japan's statistics in the 1980s showed that the pavement damage caused by permanent deformation was as high as 82%. In my country, since the "Eighth Five-Year Plan", the problem of permanent deformation has become more and more serious, and permanent deformation has become a worldwide problem in the crown of the three major damage forms of asphalt pavement. Permanent def...

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): G01N3/00G01N33/00G06Q10/00G06F19/00G06Q10/04
Inventor 梁乃兴曹源文吴勇于清杨建喜李志勇
Owner CHONGQING JIAOTONG UNIVERSITY
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