Abstract: An underground metro transfer station of Suzhou Rail Transit has two islands and four parallel lines. The total length of this station is 763.2 meters and it connects in the north and south side to both openexcavation metro lines. Due to the length this station, variations in soil strata with significant properties are observed. The treatment of artesian groundwater in three deep excavations at the station are different. Based on the different excavation depths, adjacent environment and the distribution of the artesian layers, diaphragm wall was used as the cutoff the artesian water supply and to reduce the water head.

Key words: Metro Excavation, Artesian Water, Dewatering, Cutoff Wall