摘要
为了探究机场道面环氧沥青混凝土加铺层结构开裂及裂缝的扩展规律,采用ANSYS程序建立了机场环氧沥青加铺复合道面有限元模型,在飞机荷载的作用下,对环氧沥青加铺层裂缝尖端应力强度因子进行了研究,分析了飞机轮载位置、环氧沥青加铺层厚度、加铺层模量、旧道面板模量以及裂缝扩展长度的影响,为机场环氧沥青加铺层防裂设计提供理论依据。
In order to explore the crack rule and crack propagation rule of airport pavement epoxy asphalt con- crete overlay, the stress intensity factor is researched on the impact of aircraft wheel load position, epoxy asphalt o- verlay thickness and modulus, old concrete pavement modulus and the crack length, under the action of aircraft loads, using the ANSYS program establish finite element of airport epoxy asphalt concrete overlay composite pavement. The result provides theoretical basis for anti-crack design of airport epoxy asphalt concrete overlay.
关键词
机场工程
环氧沥青混凝土
应力强度因子
有限元
airport engineering, epoxy asphalt concrete, stress intensity factor, finite element
