Characterization of Shallow Groundwater Circulation Based on Chemical Kinetics: A Case Study of Xiong’an New Area, China

Xiong’an New Area, located in the middle of North China Plain, will have been built as a “city future.” Urban planning and construction need to comprehensively consider constraints hydrogeological conditions such aquifer structure parameters. As main this area, paleo-channel is heterogeneous anisotropic, two-dimensional hydraulic conductivity each horizontal direction cannot be obtained from tests. Therefore, study adopts chemical kinetics method calculate ionic activity mineral saturation indices shallow groundwater, determine groundwater potential field, construct model. This model used conductivity, flow rate retention time areas different kinetics, well evaluate heterogeneity Quaternary aquifer. The results indicate that field can reflect characteristics seepage direction. channel circulation, which shows statistical difference its permeability. Alluvial lacustrine strata affect circulation due their structures along are approximately consistent with traditional calculation derived test data. Hydraulic higher extension paleo-channel, lower if path crosscuts multiple paleo-channels. feature build combined drilling Furthermore, excessive exploitation change actual thereby affecting conditions. Area by means makes up for deficiency unconsolidated sedimentary anisotropy within paleo-channel.