The paper introduces basic principles, thickness calculation methods and process of GPR testing pavement thickness, compares testing results with traditional testing methods and GPR testing method, and finally proves that:the application of GPR in pavement thickness testing is feasible.%介绍了探地雷达检测路面厚度的基本原理、厚度计算方法和探地雷达对路面结构层厚度检测的过程，根据传统检测方法和运用探地雷达检测结果的比对，证明了探地雷达检测路面厚度在实际中是切实可行的。
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