ABASIC STUDY ON THE EARTHQUAKE RESISTANT DESIGN METHOD OF SHIELD TUNNEL WITH SECONDARY LINING IN TRANSVERSE DIRECTION

Abstract

To investigate the seismic behavior and the earthquake resistant design methods of shield tunnel with secondary lining in transverse direction, a series of model shaking table tests and two kinds of analyses on the tests are carried out. The investigation concerns with the vibration characteristics of tunnel with secondary lining and ground, the interaction effects between ground and tunnel, the effect of secondary lining and the validity of analitical model of tunnel. In tests, the different structual characteristics of tunnel from the effests of transverse and circumferential joints and secondary lining were focused. In analyses, the seismic deformation method based on beam-spring model and the 2-D FEM dynamic analysis are adopted.