Transverse Joint Faulting Models and Application of Cement Concrete Pavement

Abstract:

Transverse joint faulting is a common structural disease of cement concrete pavement,and to accurately predict the development of faulting is significantly important for guiding the formulation of pavement maintenance measures.Several typical cement concrete pavement transverse joint faulting models at home and abroad are comprehensively analyzed,and both the evolution process of the models and the trend of the model parameters’ embodiment and recessivation are studied.Besides,analysis of transverse joint faulting of LiuNan expressway in Guangxi shows that the occurrence and development of premature faulting is not mainly caused by thin slabs and inaccuracy of traffic prediction,but poorly-designed joints;the Setting of dowel bars in the joint can slow down the development of joint faulting,thus provide enough time for the implementation of preventive maintenance and facilitate the reasonable formulation of preventive maintenance plan.Finally,both the basic principles and the integrated amendment method for the application of other countries’ or regions’ models are brought forth,which provides a useful reference to our models’ establishment and a solid theory for popularizing and developing cement concrete pavement preventive maintenance.