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

Asphalt pavement historical maintenance benefit quantitative evaluation method based on principal component analysis method

A technique of principal component analysis and asphalt pavement, which is applied in the direction of complex mathematical operations, instruments, and data processing applications, and can solve problems such as the inability to utilize historical maintenance and detection data, and the inability to establish a quantitative evaluation method for evaluating the improvement effect of pavement performance. , to achieve reliable results and improve utilization

Active Publication Date: 2020-04-24
WUHAN UNIV OF TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, this method cannot establish a quantitative evaluation method for evaluating the effect of historical maintenance on the improvement of pavement performance, and cannot make full use of historical maintenance and testing data

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
  • Asphalt pavement historical maintenance benefit quantitative evaluation method based on principal component analysis method
  • Asphalt pavement historical maintenance benefit quantitative evaluation method based on principal component analysis method
  • Asphalt pavement historical maintenance benefit quantitative evaluation method based on principal component analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] (1) Select an example road section

[0053] The example road section is located in the Hubei section of the Beijing-Hong Kong-Macau Expressway. It consists of the Beijing-Hong Kong-Macau section (G4) and the Shanghai-Chongqing section (G50). It is an important north-south economic traffic artery in my country. In this calculation example, the most prominent transverse crack disease in the Shanghai-Chongqing section is taken as an example, and the example road sections are selected in Table 2. Three of the road sections were under repair in 2016.

[0054] Table 2 Example road section selection results

[0055]

[0056] (2) Decay curve fitting

[0057] The Sun's decay model was used to fit the PCI and RQI data of the three road sections from 2015 to 2017, and the parameters of the model considering the maintenance intervention in 2016 and assuming no maintenance intervention in 2016 were obtained.

[0058] For the case of maintenance intervention in mid-2016, curve ...

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 asphalt pavement historical maintenance benefit quantitative evaluation method based on a principal component analysis method. The evaluation method comprises the followingsteps: (1) acquiring pavement use performance index detection data of at least one year before and after a historical maintenance occurrence year of a road section, and performing nonlinear curve fitting on decay of use performance indexes PCI and RQI by utilizing a grandson decay model; (2) solving the decay rate of the use performance index one year after maintenance intervention; (3) solving the decay rate of the use performance index of the corresponding year in a maintenance-free intervention state; (4) solving a lifting correction value and a decay rate improvement value of the use performance index under the hundred-differentiation condition; (5) constructing a PQII evaluation system of historical maintenance for use performance improvement conditions; and (6) completing index evaluation by solving each weight coefficient in the PQII evaluation system. According to the invention, decay fitting is carried out by using historical pavement detection data, historical maintenance benefits are quantified, and a reliable, reasonable and efficient evaluation system is established.

Description

technical field [0001] The invention belongs to the field of road engineering, and relates to a quantitative evaluation method for historical maintenance benefits of asphalt pavement based on a principal component analysis method. Background technique [0002] my country's high-grade highway pavement is mostly asphalt pavement. During the service of asphalt pavement, the comprehensive circulation of vehicle load and natural environment will reduce the safety performance and performance of the road. Scientific and efficient maintenance decisions can play a role in delaying the development of diseases and improving road conditions. [0003] In the existing research on asphalt pavement maintenance decision-making, the improvement effect of new technology and new materials on related diseases in road maintenance is usually focused on by means of outdoor test section and indoor test. However, for the maintenance methods used in historical maintenance, it is often only based on ...

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): G06Q10/06G06F17/18
CPCG06Q10/06393G06F17/18
Inventor 罗蓉于晓贺王锦腾程博文成豪杰杨洋
Owner WUHAN UNIV OF TECH
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