二灰碎石分层特性对沥青路面结构性能的影响

Responses of Asphalt Pavement to Layer-built Characteristics of Lime-flyash Concrete as Base Course

高等级沥青路面二灰碎石基层的分层施工是不可避免的 .以上海市外环线工程的有关室内试验和试验路测试结果为基础 ,采用弹性层状体系理论 ,系统分析了二灰碎石上基层与下基层之间的厚度组合、模量组合以及层间结合条件等分层特性对路面结构性能的影响 .

On the basis of some laboratory tests and test roads,the elastic multilayer theory was used to analyze the responses of asphalt pavement to the layer-built characteristics of lime-flyash concrete as base course,such as the thickness ratio,modulus ratio and binding condition between the upper course and the lower course.The analysis results proposed in this paper will be of great value to design and construction of asphalt pavement with semi-rigid base course.