Tunnel

Perfect Construction from Ecological Tunnel to Rock Shed Tunnel!

Ecological Tunnel

• Rock shed tunnel structure to protect the habitats of animals in ecosystem, which has applied corrugated steel plate to tunnel type and pedestrian overpass type

Rock Shed Tunnel

• Tunnel to prevent road from destruction and passage from block when soil and stones slide down at mountain slide

Special Merits

• As it is unnecessary to use supporting post for the emergency construction of a tunnel with corrugated steel plate, it is possible to progress the safe construction while securing the passing traffic and to realize the shortened construction period and the reduction effect of construction cost
• Possible for the construction on the road in use without bypass road by simple process and short construction period