Research on the Method of Transforming Shield Tunnel Portal into Mine Tunneling Method Tunnel Portal in Subway Station
This paper studies the design and construction method of transforming the shield tunnel portal into the mine tunneling method tunnel portal in the existing subway station,and uses Autodesk Robot Structural Analysis Professional software to establish a three-dimensional finite element model to simulate the influence of transforming the shield tunnel portal reserved for the end wall of the station into the mine tunneling method tunnel portal on the end wall of the existing station.At the same time,the numerical simulation results are compared with the field monitoring data,which shows that the calculation results are in good agreement with the actual situation.