Anti-seismic Analysis and Study for the Joint Structure Between Running Tunnel and Tunnel and Subway Station

Abstract

Based on a subway section in Tianjin city, the MADIS finite element software was used to numerical simulation analyze the subway station joint section. The research results show that the stress of segment joints of shield segment wells are significantly higher than the standard section of the stress; the bending moment and sheer force of the shield shaft end wall in the floor and the negative floor location are large, so measures should be taken to strengthen the structure of this point; axial force of the maximum and minimum values are in the open mouth of the shield, and they all meet the requirements of structural stress. The seismic structural measures during design and construction for Tianjin area are summarized, and the research results can provide reference for the subway station structure and tunnel seismic design.