Method for determining the design life of asphalt pavement on highways

By establishing an indicator system that includes social benefits, environmental carrying capacity, and life-cycle costs, the optimal design life of asphalt pavement for highways was determined, solving the problem of unreasonable design life determination in existing technologies and achieving higher quality design and construction.

CN115222272BActive Publication Date: 2026-05-26CCCC FIRST HIGHWAY CONSULTANTS CO LTD
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Patent Information

Application Number
CN202210901207.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-28
Publication Date
2026-05-26
Estimated Expiration
2042-07-28

AI Technical Summary

Technical Problem

Existing technologies lack specific methods and procedures for determining the design life of highway asphalt pavements, resulting in unreasonable determination of the design life and an inability to meet the requirements for long service life.

Method used

This paper proposes a method that comprehensively considers social benefits, environmental carrying capacity, life-cycle costs, and technical benefits. By establishing an evaluation index system and decision matrix, the optimal design life of asphalt pavement for highways can be determined.

Benefits of technology

It significantly improves the design and construction quality of highway asphalt pavement, taking into account social impact, environmental impact, technical and economic factors, and provides a scientific method for determining the design life.

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Abstract

This invention relates to a method for determining the design life of asphalt pavement for highways. Currently, there are only general principles for determining the design life of highways, lacking specific methods. This method initially estimates the design life, calculates the pavement structure thickness; calculates the social benefit evaluation value and environmental carrying capacity evaluation value; estimates the life-cycle cost; determines the technical benefits; establishes a standard decision matrix for the social benefit evaluation value, environmental carrying capacity evaluation value, life-cycle cost, and technical benefits for each design life, and ranks them to determine the optimal design life. This method is the first to propose using social benefits, environmental carrying capacity, life-cycle cost, and technical benefits as analytical indicators for the design life of asphalt pavement for highways. By establishing an indicator judgment matrix, a decision matrix, and a proximity ranking, the design life of asphalt pavement for highways is determined, filling a methodological gap in current standards and providing a methodological and technical approach for the design, construction, maintenance, and operation management of highways.
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