| Paper researches on the fatigue cracking of asphalt pavement. Through to the high grade highway asphalt roadbed field investigation, combining with theoretical analysis, by indoor test and other technical means, it carries out the researches of the fatigue cracking mechanism and treatment technology of asphalt pavement for high grade highway.Through the analysis of the relevant traffic information, it sums up the basic characteristics of heavy traffic. It uses a large number of typical asphalt pavement structures with finite element method to analyze the mechanical response, making field investigations of the typical sections characteristics of asphalt pavement at the same time. The comprehensive analysis of the asphalt roadbed damage mode and failure mechanism is obtained. It does indoor fatigue tests under different conditions and concludes the asphalt mixture fatigue model. On the basis of failure mechanism analysis and laboratory test, prevention measures are put forward from the angle of the asphalt pavement fatigue damage. |
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