Supporting Design and Stability Analysis of a Subway Station's Main Body Tunneling

Abstract:

In this paper, taking a subway station as the design background, combining with the design conditions and the surrounding rock stability, hydrogeology conditions, and using numerical simulation and engineering analogy method, the main structure of the station excavation section is excavated and the tunneling segment supports is designed. Using FLAC3D software to build a subway station tunneling segment model, with reference to the analog out of the design parameters and excavation program, strictly in accordance with the small block and step into the ring principle, the excavation and support are simulated, and the numerical calculation is performed, then from the stress, displacement, plastic zone and other aspects, the station shallow section stability of the support is analyzed, the effect of excavation station bringing to the surrounding soil stability is calculated.

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 970-975
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.970
• Online since: December 2013
• Authors: Zhao Guang Li*, Zhi Li Sui, Quan Zhen Zhang, Tie Jun Xu
• Keywords: Middle Septa Method, Shallow Tunneling Method, Stability Analysis, Support Design

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