Study on the Distribution Law of Temperature Field at the Top-down Crack of Asphalt Pavement in Summer
Based on the measured data of temperature field in extreme months in summer in Wuhan,a typical city in central China,a model of temperature field change in asphalt pavement in summer was established.The finite element model of asphalt pavement surface cracks was established by using COMSOL.Based on the measured data,the accuracy of numerical simulation was verified,and the difference of temperature distribution between asphalt pavement surface cracks and normal asphalt pavement was explained.The results show that:①the existence of surface cracks will lead to a signif-icant difference between the distribution law of temperature field at the disease location and normal as-phalt pavement.②The temperature of asphalt pavement changes obviously along the depth direction,and the degree of difference is directly proportional to the depth of cracks.The highest surface tem-perature in summer can reach 54.089℃.
asphalt pavementtop-down crackstemperature fieldnumerical simulationdistribution law
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万方数据
