ABSTRACT
This second Fujita lecture covers the current underground construction in Japan, which amazes the international underground construction engineers with opening their eyes. The six amazing case histories are introduced with the large-size and novel underground construction technologies used in these case records and the planning. The Metropolitan Area Outer Discharge Channel tunnel (MAODC) featured by the large underground shrine cavern, the metropolitan expressway and the Gaikan projects including large diameter Shied TBM tunnelling and large size open excavation, the Maglev bullet train Shinkansen, the new connecting train network system and the refurbishment of Tokyo metro train station are introduced.
