论文部分内容阅读
为解决多次加铺的复合道面加铺层使用寿命远低于设计值的问题,采用ABAQUS分别建立了加铺多层和一次加铺至相同厚度的复合道面三维有限元模型,通过对比排除了疲劳寿命衰减规律是完全由加铺厚度引起的可能性,得出结论:加铺层使用寿命随加铺层数增加而减小,且加铺层表层受力状态并未因加铺沥青砼而得到改善,在进行加铺决策时应慎重。
In order to solve the problem that the service life of the overlay pavement is much lower than the design value, the three-dimensional finite element model of composite pavement with overlay and overlay to the same thickness is set up by ABAQUS respectively. Ruled out the law of fatigue life attenuation is entirely due to the possibility of overlay thickness, concluded that overlay service life with the increase in the number of overlay decreases, and the overlay surface stress was not due to additional asphalt Concrete and improved, should be careful when making shop decisions.