介绍了探地雷达基本原理、工作方法及天线阵技术原理。结合工程实例,详细阐述了用探地雷达天线阵技术检测隧道衬砌中衬砌厚度、混凝土衬砌疏松高含水、拱架与钢筋网、初衬与二衬之间脱空区等,并给出了相应的雷达图像和波形特征,实践证明探地雷达天线阵技术检测效率高,效果好。 Introduced the ground penetrating radar basic principle, the working method and the antenna array technology principle. Combined with engineering examples, this paper elaborated the use of GPR antenna array technology to detect tunnel lining lining thickness, concrete lining loose high water content, arch and steel mesh, the initial lining and the second lining between the empty area, and gives the corresponding Radar image and waveform characteristics of the practice proved that ground penetrating radar antenna array detection efficiency, good effect.