Investigation of interaction between rings in circular tunnel during Earthquake

The purpose of this paper is to discuss the use and performance of precast concrete tunnel linings in seismic areas. Segmental linings are primarily used in tunnel that excavated by Tunnel Boring Machine (TBM) in homogenous medium. In this study, we modeled a circular tunnel driven by TMB in homogeneous soil and analysis tunnel with 6 pieces of segment at earthquake. In this study, time domain response of a circular tunnel with prefabricated segmental lining subject to seismic waves is investigated and the results and comparison about stresses and displacements of tunnel and interaction between two rings (for portal and middle rings) at earthquake is demonstrated.

کلیدواژه ها:

Tunnel ، Interaction ، Segment ، Earthquake ، Finite element