基于正交理论的硬质沥青混凝土路面力学指标分析  

Mechanical Analysis of Hard-Asphalt Concrete Pavement Based on Orthogonal Theory

作　　者：杨瑞华[1,2] 谭波[1] 陆宏新 

机构地区：[1]桂林理工大学,桂林市541004 [2]上海市路政局,上海市200063 [3]广西路桥建设有限公司,南宁市530011

出　　处：《公路》2013年第3期30-34,共5页Highway

基　　金：广西交通科技项目;项目编号2011(18)

摘　　要：为进一步了解硬质沥青混凝土路面的力学响应,采用正交分析方法分析中面层模量、中面层泊松比、下面层模量和面层厚度组合变化对沥青混凝土路面路表弯沉值和最大层底弯拉应力的影响。分析结果表明,面层厚度组合和中面层模量对路表弯沉值和最大层底弯拉应力的影响很大,增加沥青混凝土层厚度、提高中面层模量能够减小层底拉应力和路表弯沉值。硬质沥青混合料具有较高的模量,能提高沥青混凝土路面的整体力学性能。In order to study the mechanical property of the hard-grade asphalt effects of modulus of middle course,poisson＇s ratio of middle course, modulus of ness of asphalt layer on the road surface deflection and the maximal bend stress concrete pavement, the lower course and thickat the bottom layer are analyzed by using orthogonal theory . The result shows that thickness of asphalt concrete layer and modulus of middle course have a great influence on the road surface deflection and the maximal bend stress at the bottom layer. Increasing the thickness of asphalt layer or improving the modulus of middle course can reduce the maximal bend stress and road surface deflection. Hard-asphalt mixture With higher modulus can improve the mechanical property of the asphalt concrete pavement significantly.

关 键 词：道路工程 沥青混凝土路面 硬质沥青 正交 力学 

分 类 号：U416.217[交通运输工程—道路与铁道工程]