针对地下连续墙渗漏检测中型钢接头等导电体引起的渗漏误判问题，提出一种示踪剂辅助的渗漏检测方法，综合运用物理模型试验与数值模拟，系统研究该方法在导电体干扰条件下的适用性。研究结果表明，在渗漏与导电体共存时，电位响应呈现叠加效应，导电体主导局部电位分布异常，导致渗漏引起的电位异常在单次稳态电位分布中被削弱或掩盖，难以区分。通过引入示踪剂并开展电位时序观测，时间维度上的差异为有效区分两类异常提供了可靠判据。基于示踪剂辅助的动态电位检测方法，能够有效甄别渗漏位置，实现导电体干扰条件下的可靠识别。

To address the issue of misjudgment in leakage detection of underground diaphragm walls caused by conductive bodies such as H-beam joints, a tracer-assisted leakage detection method is proposed. The applicability of this method under the interference of conductive bodies is systematically investigated through a combination of physical model tests and numerical simulations. The research results indicate that when leakage and conductive bodies coexist, the potential response exhibits a superposition effect, with the conductive bodies dominating local potential distribution anomalies. As a result, the potential anomalies caused by leakage are weakened or masked in a single steady-state potential distribution, making them difficult to distinguish. By introducing a tracer and conducting time-lapse potential observations, the differences in the temporal dimension provide reliable criteria for effectively distinguishing between the two types of anomalies. The tracer-assisted dynamic potential detection method enables accurate identification of leakage locations, achieving reliable detection under the interference of conductive bodies.