地质雷达在堤身违建拆除及恢复工程中的应用研究

Application of Ground Penetrating Radar in the Demolition and Restoration of Illegal Buildings on the Embankment

堤防是重要的挡水建筑物,若堤身存在违规建筑物,则会大大削弱堤防的防汛抗渗能力,影响堤防的安全稳定.违建拆除、堤防恢复工程施工会不可避免地扰动堤身土层,形成不密实区域或空洞,从而会危及堤防沿岸人民的安全.为掌握堤身违建拆除及恢复工程中堤身的质量情况,使用地质雷达对某违建拆除后恢复的堤防进行现场探测应用,使用Reflexw软件处理雷达影像,最终发现该堤身有7处安全隐患.同时通过现场踏勘及开挖验证了该探测结果的准确性,说明地质雷达能够有效探测堤身违建拆除及恢复施工形成的隐患.本研究可为消除堤防隐患、保障堤防的安全运行提供一定的参考.

Embankments are important water-retaining structures.The presence of illegal structures on the embankment body can significantly weaken the flood control and seepage resistance of the embankment and affect its safety and stability.The demolition of illegal structures and the restoration of embankments will inevitably disturb the soil layer of the embankment and form uncompacted areas or voids,which will endanger the safety of people along the embankment.To grasp the quality of the embankment during the demolition and restoration works,ground penetrating radar was used to detect the restored embankment after the demolition of illegal buildings.The radar images were processed by using Reflexw software,and seven safety hazards were identified.The accuracy of the detection results was also verified through site investigation and excavation,which showed that ground penetrating radar could effectively detect the potential hazards formed by demolition of illegal structures and the restoration of embankments.This study can provide a reference for eliminating potential hazards in the embankment and ensuring the safe operation of the embankment.