混合沥青路面结构温度耦合演变与仿真模拟研究  

TEMPERATURE COUPLING EVOLUTION AND SIMULATION OF MIXED ASPHALT PAVEMENT STRUCTURE

作　　者：张巧慧[1] 崔凯 Zhang Qiaohui;Cui Kai(Department of Railway Engineering,Shaanxi Railway Institute,Weinan 714000,Shaanxi,China;School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China)

机构地区：[1]陕西铁路工程职业技术学院铁道工程系,陕西渭南714000 [2]武汉科技大学资源与环境工程学院,湖北武汉430081

出　　处：《计算机应用与软件》2020年第7期320-323,共4页Computer Applications and Software

基　　金：2018年河南省社科联调研课题(SKL-2018-3817);陕西省教改课题(2017SJGLX635)。

摘　　要：为研究沥青混合料路面结构温度分布情况及其随时间变化的演变规律,结合三种传热形式(热辐射、热对流和热传导),利用有限元软件建立自然环境下的沥青路面模型,并与实验结果进行对比。结果表明:随着深度的增加,路面结构温度逐渐下降,并且其最大温差与结构最大温差在相同时间出现;随着时间的增加,沥青路面结构温度先增加后降低;同一时间条件下不同结构深度的最大温度差与结构最高温度同时出现;采用的多物理场仿真模拟方法具有较高的准确性和可靠性,为沥青路面施工、运营提供数据支撑。In order to study the temperature distribution of asphalt mixture pavement structure and its evolution law with time,we establish the asphalt pavement model under natural environment by combining with three heat transfer modes(heat radiation,heat convection and heat conduction)and by using the finite element software.And we compared with the test results.The results show that the temperature of pavement structure decreases gradually with the increase of depth.And the maximum temperature difference and the maximum temperature difference of structure appear at the same time.With the increase of time,the temperature of asphalt pavement structure increases at first and then decreases.The maximum temperature difference of different structure depth and the maximum temperature of structure appear at the same time under the same time condition.The simulation method of multi-physical field adopted in this paper has high accuracy and reliability,which can provide data support for the construction and operation of asphalt pavement.

关 键 词：沥青 耦合 传热 仿真 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] U455[自动化与计算机技术—计算机科学与技术]