Analysis on the spatial and temporal distribution of drawdown using multi-well dewatering in phreatic zones

Based on the characteristic of well drawdown,a simplified theoretical model,Neuman model is adopted to predict the spatial and temporal distribution of drawdown when using multi-well dewatering in phreatic zones.By synthesized study on a project case use FORTRAN language,it's found that the predict result coincides with the actual measure result basically,that indicates the Neuman model can be used to lay out the dewatering well and control the dewatering time in projects.