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以国家863项目“抗滑、阻燃、降噪多功能隧道路面结构设计与铺装技术”为依托,以武汉长江隧道工程为背景,根据长江隧道路面大纵坡、刚性基层的特点,采用德国汉堡车辙试验方法分析了应用于武汉长江隧道沥青路面面层新型材料AFNA-13和普通沥青混合材料SMA-13的抗车辙性能,并运用有限元方法计算比较了2种材料结构的抗车辙性能,同时对长江隧道路面结构的抗车辙性能进行了有限元模拟分析.得出在相同循环车载作用下,AFNA-13材料比SMA-13材料具有较好的抗车辙性能,沥青路面面层厚度是影响路面的抗车辙性能的主要因素.武汉长江隧道所采用的路面结构具有较好的抗车辙性能.
Based on the project of Wuhan Yangtze River Tunnel and based on the characteristics of large longitudinal gradient and rigid basement of the Yangtze River Tunnel, based on the project of “Designing and Paving Skid-resistant, Flame-retardant and Noise-reducing Multi-functional Tunnel Pavement” of National 863 Project, The rutting test method of Hamburg in Germany was used to analyze the rutting resistance of AFNA-13, a new type of asphalt pavement material used in the Wuhan Yangtze River Tunnel, and the ordinary asphalt mixture material SMA-13. The rutting resistance of two material structures was calculated by finite element method Performance and the anti-rutting performance of the pavement structure of the Yangtze River Tunnel were analyzed by finite element method.At the same cycle, the AFNA-13 material has better anti-rutting performance than the SMA-13 material, the asphalt pavement thickness Is the main factor that affects the anti-rutting performance of pavement.The pavement structure used in Wuhan Yangtze River Tunnel has better anti-rutting performance.