ABSTRACT
Construction has commenced on the world’s first shield driven double track subway tunnel of rectangular shape for the Kyoto Municipal Subway. Full-scale loading tests were performed on lining segments to confirm the adequacy of their design. Also, as a method by which a rectangular cross section can be excavated, manufacturing is in progress on a “Wagging Cutter Shield,” which is equipped with rotating cutters that perform oscillating movement. This paper presents a report on the overall planning and the tests that were performed in the process of planning.
