To confirm how the depth of soft soil layer affects the earthquake responses of subway stations, the finite-element method is used to model the dynamic interaction system of soil-subway station when five soft sites and one general site are used as the foundation of subway station respectively.

The influence of ground depth to the shear wave velocity is discussed and the trend of shear wave velocity with.

Through the construction example, the paper introduces lectotype problems of underpinning in the pile foundation reinforcement under geological conditions of deep soft soil layer and briefly states the method for correcting a deviation in the frame structure.

A Research over Construction Technology for Large Section Shallow-buried Tunnel on Mollisol Tier of Urban Subway;