Research on Stability in Metro Tunnel Constructing with Shallow Buried Covered Excavation in Loose Sand Layers

Abstract:

For subway tunneling in urban underground, high safty of construction is needed.However, the safty and rationality of excavating plan are forecasted difficultly because of consealment. Based on the Zhang-Shen tunnel construction of Shenyang subway, bench method, single side-wall heading excavation method and CD excavation method are numerical simulated; according to the numerical calculation results and the constructing process, bench method is adopted; the ground settlement caused by excavation monitored during excavating is in the allowed range and the tunnel is safe during excavating.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 1240-1244
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.1240
• Online since: November 2012
• Authors: Shen Gang Li*, Wen Zhao, Xiao Li Cai, Yin Fu Ma, Lu Zhang
• Keywords: Monitoring, Numerical Simulation, Shallow Buried Covered Excavation, Stability, Subway Section

References

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