Soil Engineering and Foundation

›› 2018, Vol. 32 ›› Issue (5): 506-509.

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Numerical Analysis and Monitoring of the Effect of a Deep Excavation Near the Operational Regional Metro Tunnels

WAN Beijing1,2， ZHAO Shi3   

  1. (1.Nanchang Urban Planning & Design Institute，Nanchang 330038；
    2.Nanchang Rail Transportation Design and Research Co., Inc., Nanchang Urban Planning, Design and Research Institute, Nanchang 330038;
    3.Nanchang Rail Transportation Design and Research Co., Inc., Nanchang 330038)
  • Received:2017-10-27 Revised:2017-11-03 Online:2018-10-30 Published:2018-11-02

Abstract: The regional metro tunnel is expected to have deflections as results of the nearby deep excavation activities and therefore induce an adverse effect to the safe operation of the metro cars. This paper presents a case history of the excavation near Nanchang Rail Transportation No 1 Line. The measures that were used in the construction to reduce deflection in the operational tunnel are discussed. The construction monitoring results are compared with the numerical results.

Key words: Regional Metro Tunnels, Deep Excavations, Deformation, Numerical Analysis