探地雷达在隧道及公路工程质量检测中的应用

The Application of GPR in The Tunnel and The Highway Engineering Quality Testing

探地雷达(GPR)是利用高频电磁脉冲波的反射,来探测目的体及地质界面的电磁装置。作为物探领域的一种电磁探测方法,在地质领域它应用较广;同时作为一种检测手段,可以弥补现行诸多检测方法无法实现的检测目的,解决工程问题。但由于其费用高、设备笨重、现场操作要求高等因素,探地雷达在工程检测领域目前应用不多。本文阐述了探地雷达技术的工作原理,提出将其应用于地铁隧道混凝土衬砌质量、公路路面施工质量检测的检测方法,并在实际工程项目中验证了探地雷达这种技术手段,可以较好地实现检测目的。

GPR is the device of used the high-frequency electromagnetic pulse wave reflection, to detect body and geological electromagnetic. As an electromagnetic detection in the field of geophysical prospecting method, GPR has been widely used in the field of geological; as a kind of quality testing, it can make up for the many current testing methods while could not achieve the purpose to solve engineering problems. But due to factors of high cost, heavy equipment, higher operation, GPR application in engineering testing field currently is few. This paper expounds the working principle of GPR technology, and puts forward testing methods applied GPR to subway tunnel concrete lining quality and highway pavement construction quality examination. It proves that GPR is verified in practical engineering projects.