Abstract: This paper presents the results of three dimensional finite element analysis model using MIDASGTS commercial software. The effect of multiple deep excavations on the existing metro tunnel is numerically simulated. During the foundation excavation, the numerical results are verified simultaneously with the instrumented values that made in the tunnel. The subsequent foundation excavation on the metro tunnels can therefore be predicted and the design and construction can be optimized. This approach provides a safe guard for the foundation excavation construction and the operation of the subways.

Key words: Three-dimensional Finite Element Analysis, Multiple Deep Excavations, Existing Metro Tunnels, Deep Excavation-Tunnel Coupling