地质雷达在隧道衬砌质量检测中的应用

Application of Ground Penetrating Radar to Tunnel Lining Quality Testing

利用地质雷达准确检测隧道衬砌中存在的各类病害的位置和规模并据此对其进行有效治理对于保障道路运输安全有重要的意义。通过几个具有代表性的工程实例,对二衬厚度的拾取、钢筋网和钢拱架的识别、脱空异常和衬砌后回填不密实异常的雷达检测图像进行了分析总结,对于正确分析地质雷达检测资料有很好的参考价值。

It＇s very important to detect the location and scale of all kinds of hazards in the tunnel lining accurately using the GPR method and to deal with the hazards effectively for the protection of road transport safety. In this paper, the author analyzes and summarizes the radar detection images through several representative project examples such as： secondary lining thickness＇s picking, rebar meshes and steel arch＇s identifying, disengaging anomaly and uncompacted area behind the lining anomaly. The research of this paper makes contribution to analyzing the GPR data.