ABSTRACT
The construction of metro tunnels in urban areas poses significant challenges related to the stability of adjacent structures and subsurface utilities. This study investigates the effects coming on the ground surface due to underground excavation activity performed at different depths. The mode of excavation used was tunnel boring machine (TBM). Using numerical modeling in PLAXIS 3D, the research examines critical parameters like face pressure, grouting pressure, jacking force, volume loss, and surface settlement induced during Earth Pressure Balance (EPB) tunneling. The validation of simulation process implemented in the study is also described in detail. The study highlights the impact of tunnel location on the surface movement. The constitutive model used for simulating soil behavior during construction is briefly studied. This research aims to provide a process which can be utilized by the researchers to study further about the tunnel excavation process and their interactions with other structures.
