沥青路面探地雷达快速检测技术应用分析

Application analysis of GPR rapid detection technology for asphalt pavement

探地雷达因其具有高采样率、快速连续等优点在道路检测方面应用前景广阔.为检验与评价沥青路面探地雷达快速检测技术的现场应用效果,基于现场检测技术的工作要点和实施流程,依托实体工程进行现场试验研究,与传统检测方法进行对比,对检测结果的准确性进行分析.结果表明:现场应用探地雷达检测沥青面层压实度结果较为准确,相对误差可以控制在1%以内;路面病害探地雷达现场探查结果与取芯结果一致,探地雷达扫描图像能够清晰地反映出沥青路面结构状况.

Ground penetrating radar(GPR)has a broad application prospect in road quality detection because of its high sampling rate,fast and continuous.In order to test and evaluate the field application effect of GPR rapid detection technology for asphalt pavement,based on the working points and implementation process of field detection technology,field test research is carried out based on physical engineering,compared with traditional detection methods,and the accuracy of detection results is analyzed.The results show that the field application of GPR to detect the compactness of asphalt pavement is more accurate,and the relative error can be controlled within 1%;The GPR field detection results of pavement diseases are consistent with the coring results,and the GPR scanning image can clearly reflect the structural condition of asphalt pavement.It is proved that the GPR detection technology of asphalt pavement has good application value,and the research results lay a foundation for the further application of GPR in road rapid detection.