The Researchs Of The Tructure Design Of Long-life Asphalt Pavement

For the problems existing between high-way's designed life-span and the actual service life, this paper has an analysis of the design of perpetual pavements in the perspectives of long-lasting pavements definitions, design principles and standards.This paper trys to find out the structure of long-life high-way relying on coastal high-way Q1 contract project, synthesizing the research and development of long-life high-way at home and abroad and according to our situation , the research in the still-been used semi-rigid base that hasn't happened to structure damage and analyzing mechanical performance. It also provides an analysis on the pavement structure of the coastal high-way's long-time asphalt pavement test road,according to《Specifications for Design of Highway Asphalt Pavement》(JTG D50-2006). By examining tension stress of the pavement structure, it analyzes its fatigue life. For the long-time of road use, in this paper we confirm the main technique measures for the design and construction .This paper discusses some thinking of the design in long-time structure allowing for the development and fulfillment of our long-life, high-way design.