摘要:In the process of groundwater extraction, prob- lems such as ground subsidence and water quality changes due to changes in the seepage field and thestress field. However, the model test system cannot be used to achieve the groundwater seepage of the suspended interception curtain pit and the seepage flow of the layered aquifer under the condition of acomplete well. Therefore, it is impossible to obtain the seepage flow pattern consistent with the actual project. In this paper, Hydrus-ID model is used to simulate the migration and transformation process of pollutants in the aerated zone before entering thegroundwater, and a process-based groundwater seep- age evaluation method is constructed. Taking a tail- ings pond as an example, the coupling study of pol- lution simulation in soil-groundwater system transport and pollution evaluation was carried out. The results show that the process-based groundwaterpollution assessment method can more accurately re-flect the spatio-temporal change process of ground- water seepage source strength compared with the tra- ditional method of simulation prediction and evalu- ation of groundwater. This theory improves the method of groundwater seepage prediction and eval- uation, and provides a theoretical basis and practical guidance for preventing ground subsidence and groundwater pollution.
关键词:Dynamic Evaluation;Groundwater Flow;Hydrus-ID Model