1994 Volume 4 Pages 125-132
Recently, triple-face shield tunneling method is receiving much attention, because it can construct a tunnel in a short period without any auxiliary method such as chemical grouting, etc. In this method, temporary columns are installed between permanent columns. After supporting girders are in place, the temporary columns are removed.
In this paper, we discuss about the behavior of a test tunnel model and three-dimensional FEM simulation analysis in the process of the temporary columns' removal. The tunnel model pipe, columns and media to be analyzed were simulated by shell, beam and solid elements, respectively in FEM package “ABAQUS”.