摘要
动态模量是表征路面动态特性的一个基本参数,由弯沉盆数据反算来确定路面各结构层的动态模量是较为简便的方法。通过SIDMOD模量反算软件对山东省5种结构试验路各结构层的模量进行了反算,并将沥青层的反算模量与室内试验所测得的动态模量进行了对比,通过对比得出了4.4℃2、1.1℃、40℃下此试验路段沥青层的模量修正系数K,为反算模量与室内的测试动态模量的比例系数的确定提供了依据。
Dynamic modulus is a basic parameter for pavement dynamic performance,use the deflection basin data to backcalculate the layer＇s dynamic modulus is a more convenient way.This paper backcalculated the modulus of five experiment sections which have different structures according to the SIDMOD,then,obtain the backcalculation correction factor K for the five different asphalt surface under 4.4℃、21.1℃、40℃,and contrast backcalculated modulus to which obtianed from laboratory,and provided a basis to define the ratio between the two modulus.
出处
《公路工程》
2011年第1期4-7,共4页
Highway Engineering
基金
交通部西部交通建设科技项目(200831800099)
关键词
沥青路面
弯沉盆
反算
动态模量
asphalt Pavement
deflection basin
backcalculate
dynamic modulus
