Abstract: This paper presents the buoyancy resistance design results for a threestory underground subway station in the first terrace of Yangtze River. Common mistakes in the buoyancy resistance estimation are also discussed. The resultant critical values in the buoyancy analysis are obtained under three different conditions: only selfweight of the station structure, weight of the main and the ancillary structures as well as the selfweight and the side friction of all structures.  These crucial values are thickness of the additional weight, thickness of the overburden soil, width of the station structure, length of the toe of the retaining wall, length of the uplifting pile and the spacing of the weep holes on the side walls.

Key words: Subway Stations, Buoyancy Resistance Measures, Critical Values, Side Friction, Further Discussions