Abstract: High water levels and high permeability pressure will cause the expansion of levee leakage defects or aggravation of hidden dangers during the flood season. Rapid and accurate emergency investigation of hidden dangers of levee leakage is an important measure to guide scientific flood prevention and ensure safe during flood season. In view of the leakage defects and hidden dangers such as piping, dispersion, and levee-crossing buildings, high-density electrical method site test is carried out, and the electrical structure of levee during flood season is obtained. Through the comparison test, the electrical differences between different leakage defects and no significant defects of levee are obtained. Based on this, high density electrical methods are used to investigate hidden dangers in the Tianjin Jinghai section of Ziya River right levee, especially in the section where the Ziya River merges into the Duliujian River. The division of hidden leakage areas and potential risk areas provides important technical support for ensuring the safety of levees during the “23·7” catastrophic flood in the Haihe River Basin.

Key words: leakage detection, emergency rescue, levee, dongdian flood storage area, Ziya river, high density resistivity method

摘要： 汛期高水位、高渗透压力下,会造成堤防渗漏缺陷扩大或隐患加剧,快速、准确地开展堤防渗漏隐患应急排查,是指导科学防汛、保障安全度汛的重要举措。针对管涌、散浸、穿堤建筑物等渗漏缺陷及隐患,开展了高密度电法的场地试验,得到汛期堤岸的电性结构,通过比对试验,得到不同渗漏缺陷与无显著缺陷堤岸的电性差异,以此为基准,采用高密度电法对子牙河右堤天津静海段特别是子牙河汇入独流减河段进行隐患排查,划分了渗漏隐患区和潜在风险区,为保障海河流域“23·7”特大洪水期间堤防安全提供了重要技术支撑。

关键词: 渗漏探测, 应急抢险, 堤岸, 子牙河, 高密度电法