沥青路面车辙预估模型验证研究

为准确预估车辙量,有效指导沥青路面结构材料设计,在充分调研山西省3条典型沥青路面车辙数据的基础上,对由同济大学提出的经验分析法车辙预估模型进行验证,并对该预估模型涉及的车辙影响因素进行敏感性分析。结果表明：预估模型得到的面层各亚层车辙预估值与实测值相差较大,但预估得到的沥青路面车辙总变形与实测值较为接近,祁临高速公路偏差15.8%,离军高速公路偏差仅为9.0%;车辙影响因素敏感性分析结果表明,路面温度对于车辙变形的影响最为显著。

Analysis of Permanent Deformation Prediction Model for Asphalt Pavements

In order to accurately estimate the rut,to do guidance for the asphalt pavement design of Structure and materials effectively,This paper verify the rutting prediction model by the Tongji University proposed,on the basis of investigate the rutting data of Shanxi Province three typical asphalt pavement,The seam time,analysis the Sensitivity of rut impact factors.The results showed that discrepancy exists between the predicted and measured permanent deformation of each surface layer,but the estimated and measured values of total permanent deformation are closer,deviation of Qixian to Linfen highway is about 15.8%,Lishi to Jundu highway is only 9.0%.Among the impact factors,road surface temperature to the permanent deformation is more significant.