The waste layers of landfill sites are stabilized by the washout of the permeate flow, and understanding the permeate flow allows us to indirectly identify zones where stabilization has been delayed. Using leachate and gas monitoring or borehole surveys to assess the stability of waste layers in landfill is limited, and they are largely uneconomical. Therefore, in this study, we followed an electrical resistivity method to provide non-destructive, three-dimensional visualizations of the leachate movement in the landfills, as the resistivity is correlated with leachate conductivity, porosity and water saturation. Water injected into the fills was tap water for simulated landfill (laboratory experiment) and salt water for two actual landfills (field experiment). Their resistivity change profiles were compared and evaluated with the soil test results. It was found that resistivity monitoring can effectively visualize unsaturated water flow in both laboratory and field experiments. In addition, the results of the simulated landfill show that vertical osmosis from the rough holes driven by gravity is the main path of water in the fills, and the water saturation rate at that time is about 35–40%. The results obtained by this method provide effective information for promoting stabilization of landfills.

通过冲洗渗透流可以稳定垃圾掩埋场的废物层，了解渗透流可以使我们间接地识别出延迟了稳定的区域。使用渗滤液和气体监测或钻孔调查来评估垃圾填埋场中废物层的稳定性是有限的，而且这在很大程度上是不经济的。因此，在这项研究中，由于电阻率与渗滤液的电导率，孔隙度和水饱和度相关，因此我们采用电阻率方法对垃圾填埋场中渗滤液的运动进行了非破坏性的三维可视化。注入填充物中的水是用于模拟填埋的自来水（实验室实验）和用于两个实际填埋的盐水（野外实验）。比较了它们的电阻率变化曲线，并与土壤测试结果进行了评估。发现电阻率监测可以在实验室和现场实验中有效地可视化不饱和水流。此外，模拟的垃圾填埋场的结果表明，在重力作用下，毛孔的垂直渗透是填充物中水的主要路径，当时的水饱和度约为35-40％。通过这种方法获得的结果为促进垃圾掩埋场的稳定提供了有效的信息。