A STUDY ON DESIGNING FOR SHIELD TUNNEL LINING USING NEW TYPE JOINTS WITHOUT TIGHTENING BOLTS

Abstract

  In order to design the segment for shield construction using new type joints without tightening bolts, the joint behaviors of the joint bending test, the joint shear test and the joint pullout test, which are carried out for researching of joint rigidity, were simulated precisely by the three-dimensional nonlinear FEM analysis. The design method which ask for the M-θ relation of segment joints, the shear and tunnel axial rigidity of ring joints, were examined by the numerical test using this analysis. Consequently, as compared with the conventional design method, it was shown that it was the rational designing method, because the physical properties of metal and concrete materials, the influence of axial force and the segment's size variation were able to reflect.