Numerical Simulationg Of Groundwater In Southwest Liaobin Coastal Economic Zone Based On Visual MODFLOW

According to the industrial group of Southwest Panjin ordnance Liaobin coastaleconomic zone project construction site area as the study area, combined with thehydrological and water quality data of the area and the hydrogeological conditions ofhydrogeology survey,prospecting the acquired data,numerical simulation for groundwaterflow field with the help of Visual MODFLOW software, and the observed hydrologicaldata in different periods, the model is established by using the identification、validation,provides theoretical basis for reasonable exploitation and utilization of groundwater resourcesin the area.In the study area of collecting and finishing of natural and economic geographymeteorology and hydrology、 topography、 lithology、regional crustal stability and waterresources through the exploration and hydrogeological survey,a comprehensive grasp of thegroundwater occurrence condition,recharge runoff discharge conditions water quality、hydrological and geological conditions. Determining the simulation area and mesh,generalizability with boundary properties,internal structure, hydraulic characteristics, aquiferrecharge runoff discharge conditions and other factors, to establish hydrogeologicalconceptual model, based on the analysis of lithology, the study area of hydrodynamic field、water chemistry field、the model boundary conditions、 internal structure、pattern elements.Based on the established mathematical model of groundwater,for simulation of groundwaterflow field goal area,and parameter identification in2012July wet season flow field data,toverify the model using the2012May at the end of the dry season water level data.The results show that,the3D groundwater model reflects the characteristics of thegroundwater system more accurately in the study area,achieve a higher fitting degree,reproduction of the regional groundwater level dynamic、migration、water features,for thefollow-up work of project construction and the development and utilization of groundwaterresources in the area,provide a theoretical basis for optimal allocation.