NUMERICAL ASSESSMENT OF PAVEMENT TEST SECTIONS

摘要: A numerical study was performed at the University of Minnesota for Department Transportation assessing and explaining observed performance several highway pavement test sections. The sections that were considered in this are located near Rothsay, on I-94, Olivia, Trunk Highway 71. For Olivia site, objective to investigate effect a thin layer bituminous bond breaker reflective cracking new slab, whereas Rothsay site goal understand differences between bituminous-treated bases (BTBs), cement-treated (CTBs), aggregate affecting behavior determine causes relatively poor pavements BTBs as compared CTBs bases. approach use finite element method perform falling-weight deflectometer (FWD) simulations results from those FWD data model correlation, finally parametric studies order assess long-term under consideration. As result study, preliminary relationships derived stress ratios properites could affect behavior. Based these results, it possible provide rational explanations conditions, draw significant conclusions improved procedures rehabilitation.