Technology
Technology

Construction

We possess the technologies needed for efficient construction of expressways that are safe, comfortable, and highly resistant to natural disasters.

Bridges

bridges

We construct bridges between steep mountain slopes, urban overpasses, and a variety of other site conditions in a cost-effective way.

Tunnels

tunnels

To overcome factors such as faults and fracture zones, proper construction management is conducted using NATM,Shield methods and TBMs.

Earthwork

earthwork

We perform earthwork management such as slope stabilization and road embankment quality control even in areas with soft ground or areas susceptible to landslides.

Pavement

pavement

Introducing porous asphalt surfece on our expressways increases skid resistance and improves safety during high speed driving in rain.

Rapid recovery following natural disasters

Disaster recovery after the Niigata Chuetsu-oki Earthquake

earthquake