Abstract: In order to solve the problem of water inrush and flooding during the construction of superdeep railway shafts in waterrich weathered granite areas, the construction of #1 shaft in Gaoligongshan Tunnel on DaliRuili Railway characterized by complex geological conditions, waterrich and high pressure, small working face and difficult water drainage is taken as an example to study the technologies of detection and grouting at working face, drilling in small space and grouting of vertical shaft. Furthermore, the construction principle of excavation with detection, waterstop as mainand stopdrainage combination and gushing water treatment measure of pregrouting at working face and grouting behind shaft wall are put forward for superdeep vertical shaft construction of railway in waterrich granite area, which can effectively control the water gushing and improve the construction efficiency of shaft construction.

Key words: railway tunnel, waterrich granite, vertical shaft, gushing water treatment