探地雷达在深埋管道探测中的应用

Application of Ground Penetrating Radar in Deep Buried Pipeline Detection

本文介绍了探地雷达进行深埋管道探测的基本原理。使用Ultra pulseEKKO PRO大深度探地雷达,在广东省汕头市、肇庆市等地进行了深埋供水管道和暗渠探测,以及在珠江上开展了某跨江江底供水管道探测。通过分析解译探地雷达剖面图谱,确定了埋深大于10 m的地下大口径管道及暗渠的位置,能够作为后期钻探施工的重要参考资料;在水深7 m左右的江面上进行雷达探测,江底供水管道在雷达剖面上有明显的双曲线反射波形,结合RTK提供的坐标、高程数据,较精准地确定了江底供水管道的空间位置信息,为桥梁上下航道加设防撞墩设施等工程的施工提供了准确的基础资料。

This paper introduces the basic principle of ground penetrating radar for deep buried pipeline detection.Using the Ultra pulseEKKO PRO large-depth ground penetrating radar,the detection of deep buried water supply pipelines and underground culvert was carried out in Shantou City,Zhaoqing City,Guangdong Province,and the detection of a cross-river water supply pipeline was carried out on the Pearl River.Through the analysis and interpretation of the GPR profiles,the location of underground large-diameter pipeline and underground culvert with a buried depth of more than 10 meters is determined,which can be used as an important reference for later drilling construction.Radar detection was carried out on the river with a water depth of about 7 meters,and the radar profiles have obvious hyperbolic reflection waveform of the water supply pipeline at the bottom of the river.In combination with the coordinates and elevation data provided by RTK,the spatial location information of the water supply pipeline at the bottom of the river has been accurately determined,providing accurate basic data for the construction of projects such as adding anti-collision pier facilities on the upper and lower channels of bridges.