水稳级配碎石基层厚度对疲劳寿命和弯沉的影响  

Influence of thickness of cement stabilized graded crushed stone base on fatigue life and deflection

作　　者：李斌[1] 梁乃兴[2] 李矗[1] 

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安700068 [2]重庆交通大学,重庆400074

出　　处：《山东交通科技》2017年第6期45-47,共3页

摘　　要：主要依据试验所得水泥稳定级配碎石基层的疲劳方程,使用有限元对双圆标准荷载作用下路面基层受力情况进行计算分析。依据软件模拟的计算结果,结合《沥青路面设计规范》(JTG D50-2006)和本文给出的疲劳方程,计算得出不同路面结构层厚度下满足一定标准轴载作用次数的基层疲劳寿命和弯沉。According to the fatigue equation of cement stabilized graded crushed stone subbasement obtained from experiments, this article uses the finite element method to calculate and analyze the stress of pavement base under double - round standard load. According to the calculation resuhs of the simulation software, combined with the fatigue equation above and 〈 Specification for Design of Highway Asphalt Pavement 〉 （JTG D50 -2006）, calculated and obtained the fatigue life and deflection of base with different thickness of pavement structure to meet certain standard axle load deflection.

关 键 词：疲劳方程 有限元 路面结构 

分 类 号：U416[交通运输工程—道路与铁道工程]