Numerical Analysis on Excavation Stress of Shanghai Xinjian Road Cross-River Tunnel without Tunnel Support
HUO Li-jie
Abstract：A central elevation of the west line tunnel in Shanghai Xinjian Road Cross-River Tunnel was-32.310m ,an elevation of the river bottom was about -11.5m and there was no installation condition of the tunnel support.According to the present construction condition ,under the supposed condition of no tunnel support installed in the west line tunnel ,based on the main construction procedure ,a nume-rical analysis was conducted on the axial force ,bending moment ,shearing and node displacement of the tunnel segment to verify the reliability of the segments.During the tunnel construction ,no tunnel sup-port was installed and no safety accident occurred.The theoretical analysis and practices showed that a construction safety could be ensured with no tunnel support installed in the tunnel.
Keywords：cross-river tunnelbypass tunnelnumerical analysistunnel supportfreezing effect
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 33-35,32 )