Abstract: Wulidian stationShanyanggou Reservoir station tunnel section on the first phase of Line 6 of Chongqing rail transit. Settlement and slight vibration monitoring and analysis are made on the neighboring buildings, the abutments, the surrounding rock massed and the ground, with the construction of the tunnel section, 300 m before TBM tunnelling, as an example, so as to recognize the influence of TBM tunnelling on surrounding environment in typical geological conditions in Chongqing. Monitoring and analysis are made on deformation of surrounding rock mass and support with different construction situations and different geological conditions of TBM tunnelling.

Key words: TBM, ground settlement, surrounding rock, deformation, slight vibration, monitoring and analysis