基于电阻率法的垃圾渗滤液渗漏及迁移规律动态监测技术探讨

Study on Dynamic Monitoring Technology of Landfill Leachate Leakage and Migration Based on Resistivity Method

为探讨垃圾渗滤液侵入地下介质的动态变化过程,引入基于电阻率法原理的地球物理探测手段,开展室内和室外渗滤液污染扩散的动态监测试验。结果表明,渗滤液在土壤中的扩散过程会引起不同时期视电阻率低阻异常区的动态变化,且变化幅度和污染程度存在一定量化关系,基于此特征可确定渗漏点和渗滤液扩散区的污染范围、程度及趋势。

In order to investigate the dynamic process of landfill leachate intruding into the underground medium, a geophysical detection method based on the principle of resistivity was introduced to carry out dynamic monitoring of the pollution diffusion of indoor and outdoor leachate. The results showed that the diffusion process in soil caused dynamic change in apparent resistivity and low resistance anomaly area in different periods, and there was a certain quantitative relationship between the extent of variation and the degree of pollution. Based on this characteristic, the leakage point and diffusion zone, the pollution level and tendency were detected.