Introduction of Conventional Tunneling cutting-edge technologies

The Cutting-Edge Approach
More than 100 years of Obayashi’s engagement in tunnel construction, 50 years since the indispensable NATM (New Austrian Tunneling Method) was introduced in Japan ---- over those years, tunnel technology has improved dramatically. With the experience of more than 600 projects around the world, Obayashi is committed to technical research and development, combining our predecessors’ expertise with the latest technologies.

Exploration Technology

Tunneling Technology

Lining Technology

Environmental technology

Measurement Technology