Abstract: In the construction of Gaoyijou station of Chongqing rail transit: the combination of concrete gatepost and I beam gate frame is adopted in the transition construction of construction tunnel into main station body; shock absorption is adopted in the main station body excavation; static blasting is used in the construction of the connected section of No. 2 ventilation tunnel and main station body, and the “connection first and concrete gatepost after” principle is made in lining construction. In the end, the rapid construction of shallowburied and mined tunnel with complex environment is guaranteed.

Key words: tunnel with large crosssection, shallowburied and mined Metro station, shock absorption, static blasting