半刚性基层设计参数确定方法的研究

Study on Determining the Planning Parameters of Semi-rigid Base

在确定半刚性基层设计参数时,通常是根据规范规定的范围来选取,而忽略了不同地区材料差异的影响,造成路面结构设计结果与路面结构的实际状况有较大的差异。利用BISAR程序,分析了半刚性基层设计参数选取的差异对路表弯沉和半刚性基层层底最大拉应力的影响,并通过室内试验推荐了济南地区常用半刚性基层材料的设计参数指标。

We normally choose the planning parameters by the regulations, when carrying on the design of Semi - rigid Base, while ignore the impact of materials in different districts. This results the great difference between the design results and actual conditions of road constructure. The paper analyzed the impact of the different planning parameters on the deflection of road surface and the maximal tension stress in the bottom of Semi - rigid Base , and commended the planning parameters of Semi - rigid Base in Jinan by the in - doors experiments.