Abstract: With an increase amount of high and extra highrise buildings, the well point dewatering technics is widely utilized in the construction in Nantong area. In some cases, the number and depth of the well points in were determined by the conventional dewatering analysis, but they were unsuccessful since the soil stratigraphy impact on the dewatering was not considered. This paper presents the suggestions and consideration in the deep dewatering well design and construction.

Key words: Deep Excavation, Well Points, Dewatering, Design, Analysis