Permanent Deformation Monitoring and Remaining Life Prediction of Asphalt Pavement Combining Full-Scale Accelerated Pavement Testing and FEM
نویسندگان
چکیده
Permanent deformation (rutting) is one of the typical failure modes asphalt pavement with a semirigid base in high-temperature areas. To address issues structure and remaining life prediction, method combining accelerated testing finite element (FE) simulation was proposed. A modified Burgers model considering creep parameter damage obtained using strain monitoring data laboratory test values, which performed FE to analyze rutting development. The results showed that high temperature heavy axle loads greatly influenced development: tested road loaded 360,000 times at temperature, contributing 50% accumulated rutting; increased by 90.7% under condition overload seasons from simulated results. Then, ratio bulge area depression (KR) proposed define mechanism. KR analysis illustrated development transition process compaction flow rutting. Finally, relationship between action load in-service roads established based on equivalence principle. When reach approximately 25 million (insufficient life) for investigated Hu-Ning highway, necessary maintenance measures should be taken treat deformation.
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ژورنال
عنوان ژورنال: Structural control & health monitoring
سال: 2023
ISSN: ['1545-2263', '1545-2255']
DOI: https://doi.org/10.1155/2023/6932621