Abstract: Thispaper presents the numerical studies using commercial software MIDASGTS on the deep excavation on the adjacent structures. The rntire deep excavation process was considered in the threedimensional numerical model by considering the spatial effect so that the impact of the excavation on the adjacent building structures. The deformation of the supporting structure and the risk assessment are evaluated in accordance with the current design code. The numerical analysis results indicate that the deformation of the supporting structure are within the acceptable range.

Key words: Deep Excavation, Adjacent Structures, Numerical Analysis, Risk Assessment