Abstract:

According to the inherent variability of asphalt pavement parameters, some pavement parameters are generated by using the Monte Carlo method and the pavement mechanical model, and the variability of pavement mechanical responses is analyzed via the probability statistic method. A computer program is then developed on the Matlab platform to analyze the variability of pavement parameters and to further simulate the variability of mechanical responses. The results show that the simulated distribution of mechanical responses accords well with the practical one. The effects of variability of mechanical responses on the fatigue damage of asphalt pavement are finally discussed based on the fatigue damage model.

Key words: asphalt pavement, variability, simulation, Monte Carlo method