Projects Using Cutting-edge Technologies

Case studies and interviews with site managers

Among Obayashi’s numerous shield-tunneling projects, here are the world's first attempts and the most advanced technology at the time. The interviewees who were responsible for the site management shared the challenges and accomplishments, along with the technologies used.

Case 1

Yokohama Circular Northern Route project, bifurcation sections (completed 2017)

Make up the mind, contemplate, and complete the project with solidarity.

Tsuyoshi FUJII Deputy Resident Engineer, Deputy Project Director (at that time)
Koji NAKANO Project Engineer (at that time)

Yokohama Circular Northern Route project, bifurcation sections (completed 2017)

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Case 2

Oi Area Tunnel Project, Central Circular Shinagawa Route (completed 2012)

New attempt that attracts global attention through unity

Masayoshi IZAWA Resident Engineer, Project Engineer (at that time)

Oi Area Tunnel Project, Central Circular Shinagawa Route

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Case 3

Subway Nanakuma Line, Intermediate station (tentative name), Fukuoka City West Section Construction Work (completed in 2021)

Working together as a team to overcome challenges

Yoshihiro TANAKA Resident Engineer, Deputy Project Director (at that time)

Nakama Station (tentative name) of Subway Nanakuma Line, Fukuoka City West Section Construction Work

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