Abstract: Well points are often used to control groundwater and enhance stability of deep excavations in areas of shallow groundwater. The distribution of these well points not only impacts the effectiveness of the de\|watering, but also influences the performance of the supporting structures and adjacent environments. From a case history, three different well point arrangements are evaluated with numerical analyses. These well point arrangements are: single row inside the excavated area; double rows inside the excavated area and symmetric double rows outside the excavated area. The numerical approaches study the efficiency of dewatering, the performance of the supporting structure surrounding the excavated areas and the impact on the adjacent environments for each well point arrangement. Better design parameters for layout of the well points for the deep excavations are suggested in this paper.