简述了探地雷达检测公路路基路面厚度的基本原理和检测方法。应用美国GSSI公司TerraSIRch SIR-3000探地雷达系统，对连霍高速公路三门峡段路基路面厚度进行了无损检测。计算得出公路路基路面各检测层的平均厚度和标准差，同时通过探地雷达交互式解释方法可以绘制连续清晰的厚度曲线图，有利于探地雷达厚度检测成果的进一步精细解释。

Basic principles of highway pavement thickness Ground Penetrating Radar(GPR) detecting were briefly introduced. Nondestructive test of Lianhuo section of highway through the Sanmenxia City was carried out by use of TerraSIRch SIR-3000 GPR system produced by GSSI Company of the United States. Finally the layers average thickness and standard deviation in highway pavement were calculated. Meanwhile the interactive interpretation of GPR can get the continuous and clear thickness curve, which will be conducive to the further detailed explanation of GPR thickness detection.