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首页> 外文会议>Critical issues in transportation systems planning, development, and management >Dynamic Response of Saturated Asphalt Pavement Based on ThreeDimensional Finite Element Simulation
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Dynamic Response of Saturated Asphalt Pavement Based on ThreeDimensional Finite Element Simulation

机译：基于三维有限元模拟的饱和沥青路面动力响应

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摘要

It has been recognized that asphalt pavement performance will be weakenedrnwith the presence of water within pavement structure. However, current mechanisticrnanalysis does not take into account the moisture influence on the dynamic responsernof pavement appropriately. In this paper, finite element meshing, boundaryrnconditions, material properties and dynamic loading were introduced, followed withrnthe analysis of typical time history pore pressure. Then, the mechanism of prematurernfailure related to water damage was discussed based on on-site damage phenomenonrncombined with the finite element simulation according to the spatial distribution ofrnpore pressure and the comparison between the saturated and dry cases. Finally, therninfluence of surface drainage conditions on the dynamic response of saturatedrnpavement is presented here. The result indicates that the presence of water changesrnstress distribution in pavement structure. What’s more, it is interesting to find thatrnthe worst positions are the middle and bottom HMA layer according to therndistribution of pore pressure, which was consistent with the initial failurernphenomenon of asphalt pavement due to water.
机译：已经认识到，由于在路面结构中存在水，沥青路面的性能将被削弱。但是，当前的机理分析并未适当考虑水分对动态响应路面的影响。本文介绍了有限元网格划分，边界条件，材料特性和动态载荷，然后对典型的时程孔隙压力进行了分析。然后，根据现场破坏现象，结合有限元模拟，结合孔隙压力的空间分布，并比较饱和和干燥情况，探讨了与水害有关的过早破坏机理。最后，提出了地面排水条件对饱和路面动力响应的影响。结果表明，路面结构中水的存在改变了应力分布。此外，有趣的是，根据孔隙压力的分布，最差的位置是HMA中层和底层，这与水引起的沥青路面的初始破坏现象是一致的。

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  • 来源
  • 会议地点 Harbin(CN);Harbin(CN)
  • 作者

    Dong Zejiao; Cao Liping; Cheng Xiaoliang;

  • 作者单位

    School of Transportation Science Engineering, HarbinrnInstitute of Technology, Harbin, P.R.China PH (86) 451-86282120 email: hitdzj@hit.edu.cn;

    School of Transportation Science Engineering, HarbinrnInstitute of Technology, Harbin, P.R.China PH (86) 451-86282120 email: hitclp@hit.edu.cn;

    School of Transportation Science Engineering,rnHarbin Institute of Technology, Harbin, P.R.China PH (86) 451-86282120 email: xiaoliang1985412@163.com;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 交通工程与交通管理;
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