Modeling Effects of Rehabilitation Actions on Reliability of Flexible Pavements

摘要: With utilization and aging, the condition of flexible pavements deteriorates requiring timely preventive maintenance planned rehabilitation. Rehabilitation actions should be in an optimal manner as they involve substantial financial, man-power, equipment recourses. The objective paper is to develop a model that accounts for effects rehabilitation actions. Developed determines reliability pavement, before after application considers multiple failure criteria (fatigue cracking rutting) based on pavement responses evaluate limit state functions. It assumes all variables beta distributions exclusively correlation between variables. To multi-dimensional probability integral, employs importance sampling technique, while FORM approach used estimate gradients required determining sensitivity measures. Finally, illustrate developed model, numerical study presented.