ABSTRACT
This research investigates the mechanical behavior of segmental linings of shield tunnels based on 1/3 scale model loading tests. The test equipment consists of frame, hydraulic jack, hydraulic cylinders, disc springs and others and takes into account the interaction between linings and surrounding ground by means of the disc springs. The test results show that the location of joints influences the mechanical behavior. The bolt axial force decrease with the occurrence of compressive failure and the deformation capacity is large as compared with that of cast-in-place RC linings. This research also carried out numerical calculation by means of 3D FEM, taking into account the joint parts such as segmental joint bolts and joint plates. It is observed that the calculation results correspond to those by model tests.
