摘要
为了分析长寿命沥青路面的性能,提出了路面动态响应数据的采集和分析方法。通过安装动态称量系统,采集交通荷载参数;通过埋设路面传感器实测路面结构动力响应,研究路面结构的动态响应随荷载、温度、车速、偏移等的变化规律,分析不同结构的应力应变响应大小和特点,在此基础上构建路面应力应变响应的预估模型,最后利用FWD检测数据,反算不同结构沥青混合料模量,分析模量随温度的变化规律。
In order to analyze the performance the long-life asphal analysis of dynamic pavement response data of perpetual asphalt parameters are colleted by installing WIM. The dynamic response t pavement, the method of acquisition and pavement is put forward. The traffic load is acquainted by the asphalt strain gauges which buried in the test road and the change mechanism of the pavement structure＇s dynamic mechanics response along with the load, the temperature, the truck speed, the offset and so on are discussed. The characteristics of different pavement structure＇s stress and strain response are compared. On the basis of it the prediction model of pavement stress and strain response is constructed. The back-calculation of different pavement structure＇s asphalt mixture modulus is compared by using FWD test data; the tendency of asphalt mixture modulus along with the temperature is analyzed.
出处
《山东交通学院学报》
CAS
2011年第4期37-40,45,共5页
Journal of Shandong Jiaotong University
关键词
道路工程
长寿命沥青路面
预估模型
路面温度
路面传感器
动态响应
road engineering
long-life asphalt pavement
prediction model
pavement temperature
asphalt strain gauge
dynamic response
