In order to predict the asphalt pavement permanent deformation accurately and quickly

a prediction method of asphalt pavement permanent deformation based on superposition principle is established under full temperature domain. In this prediction method

taking Quanzhou-Nanning Highway of Ji-lian in Jiangxi province as the test section

from the point of view of the full temperature field

the idea of zoning classification layering is introduced

that is

temperature zoning

axle load classification

pavement layering. The annual temperature distribution of asphalt pavement

the temperature distribution curve along the depth of asphalt pavement and the annual axle load distribution are obtained by actual measurement and model calculation. According to triaxial load tests

the three kinds of asphalt mixture (SMA-13

AC-20

AC-25) permanent strain viscoelastic mechanics correction model is established

and the average correction factor of different temperature range is determined

which can be used to calculate the permanent strain of asphalt mixture under different temperature and different deviatoric stress. The permanent deformation of asphalt pavement surface is calculated by two methods of the origin growth accumulation and the counter calculating cumulative superposition. The calculation results show that the allowable permanent deformation life of Quanzhou-Nanning Highway of Jilian section is 6 years and 12 years

respectively

by the origin method and the counter calculating method. The counter calculating method is more accurate and closer to reality. At the same time

a new modified model for predicting permanent deformation of asphalt pavement based on superposition principle is proposed under the condition of full temperature range. The relation equation between the number of loads and average permanent deformation in temperature range of asphalt pavement and the relation equation among permanent deformation

average permanent deformation in temperature range and temperature distribution frequency are established based on temperature distribution in the full temperature range

which provides a new method of rapid prediction of permanent deformation of asphalt pavement under full temperature conditons.