Device for improving hardened dam contact and electrical imaging directional detecting method of potential hazard body

The invention relates to the field of potential dame risk detection, and particularly relates to a hardened dam potential risk detection method and device applying the parallel electrical survey. The device comprises an electrode for an electrical prospecting apparatus, wherein the frame inside the electrode comprises a copper bar and a transfusion duct; conductive sponge and conductive lint sequentially coat the outer part of the middle part of the electrode. The method and the device have the advantages of convenience in field operation, flexibility in operation, low labor intensity and wide application environment since a charging mode electric hammer is adopted to drill the surface of hardened dam; the drilling hole has a small diameter, so that the work for repairing the hardened surface layer of the dam in later phase can be facilitated. 本发明涉及堤坝隐患检测领域，具体是种并行电法应用于硬化堤坝隐患探测方法和装置，用于改善硬化堤坝接触的装置，包括电法仪所用电极，所述电极内部骨架是由铜棒和输液导管构成，电极中间位置的外部依次包裹有导电海绵和导电绒布。本发明采用充电式电锤对硬化堤坝表层钻孔，现场作业方便，操作灵活，劳动强度低，应用环境广，同时钻孔孔径较小，方便后期堤坝硬化