堤防隐患的无损探测

Lossless detection of hidden troubles in dikes

利用高密度电阻率测量系统对堤防进行无损普查,可以准确地解释出堤防隐患的空间分布及其规模;以岩土体的导电性差异为基础,研究人工建立的稳定电流场的分布规律,进而确定隐患异常部分的位置、规模。本文介绍了高密度电阻率测量系统的特性,工程实测资料解释与地质资料对比分析证明:该方法测试精度高、结果直观,符合工程要求,实用性强。

When the lossless survey are taken for the dike by using the high density resistivity measure system,the spatial distribution and scale of hidden troubles in dikes could be interpretated accurately.Based on the conductivity differences of rock and soil mass,the interpretation is obtained by researching the distribution law of artificial steady current field.The paper introduces the characteristics of the high density resistivity measure system and analyzes comparatively the engineering measured data interpretation and the geological data.The results show that the method has many advantages,for example,high testing precision,visual result,strong practicality and meeting engineering requirements.