The application of GMS in numerical simulation of groundwater and faults disposing in Gaizi River Source

GMS (Groundwater Modeling System) is a popular software of groundwater simulation and it also has good compatibility with ARCGIS data. The barrier term, lies in 3D Grids' MODFLOW module, was developed to simulate thin,vertical,low-permeability features that impede the horizontal flow of groundwater. In Gaizi river study area,the faults,distributed nearly north-south,have obstructive effects on groundwater. Using barrier borderline to tackle the faults, imitating study area's groundwater, and the reckoning indicate that the faults have a prominent effect on subsurface flow. Using barrier borderline to handle faults can reflect faults' effect perfectly in model.