应用三维探地雷达测定沥青混合料密度的模型修正研究

Study on Model Correction for Measuring Asphalt Mixture Density Using 3D Ground Penetrating Radar

应用三维探地雷达能实现对路面质量的快速检测与评定。本文使用三维探地雷达扫描实验室室内搭建的车辙板试验平台,对五种模型进行准确性分析,在试验过程中,发现试件高度对介电常数的影响较大。针对此问题进行了试验研究,经过不断尝试发现,使用高度大于8cm的车辙板进行试验效果更好。

The objective of this study is to improve the accuracy and applicability of the model using dielectric constant to predict asphalt mixture density.Therefore,this paper uses the rutting plate test platform built in the 3D ground penetrating radar scanning laboratory to analyze the accuracy of five models.During the test,it is found that the height of the specimen has a great influence on the dielectric constant.In order to solve this problem,the experimental research is carried out,and it is found that the test effect is better by constantly trying to use the rutting plate with a height greater than 8cm.