Finite element analysis of segmental tunnel lining under fault rupture displacement pt.1

An innovative method was adopted to reduce the fault movement induced loads in the crushed zone of fault by cutting slots between the rings to create a hinge-like behavior in longitudinal direction. A 3D nonlinear analysis was conducted to investigate the effectiveness of the method. In this numerical model the nonlinear behavior of concrete and soil, soil-structure interactions and detailed geometry of segmented lining were considered.