Research on new pavement structure in the Qinghai Tibet area

Abstract

Pavement structure directly affects the performance of the road, and the high altitude and low temperature of the Qinghai Tibet Plateau has a great influence on the pavement structure. Based on the investigation of Qinghai Tibet highway, Sichuan Tibet highway line five, summarizes the existing pavement structure types; through a comparative analysis of the pavement analysis of disease type and reason and jade high speed test of four new pavement test road. The research results show that: the four kinds of test road are better than the existing traditional semi-rigid base pavement structure in which ATB+2% cement stabilized crushed stone base of the composite structure of the overall economic performance and performance optimization.