城市地下道路复合式路面结构设计方法研究

该文首先在对城市道路交通组成特点分析的基础上,给出了新的地下道路轴载换算标准,然后利用疲劳等效原则,确定路面结构轴载换算方法。应用ANSYS力学分析软件分析了复合式路面结构AC、CRC模量及AC层厚度对AC层底拉应变、CRC板底弯拉应力和复合式路面层间剪应力的影响。然后提出了CRC+AC复合式路面结构的设计方法,并建立较为系统的设计步骤和流程。

Study on Design Method of Composite Pavement Structure of Urban Undergorund Roads

On the basis of analyzing the traffic composing characteristics of urban roads,the article gives the new axle load conversion standard of underground road,and determines the axle load conversion method of pavement structure according to the fatigue equivalent principle.The application of ANASYS mechanics analysis software analyzes the influence of the composite pavement structure AC,CRC modulus and AC layer thickness on the AC bottom tensile strain,CRC slab bending stress and the shear stress among the composite pavement layers.The article puts forward the design method of CRC+AC composite pavement structure,and sets up the more systematical design steps and flows.