Civil Engineering
pForming a product line centered on the tunnel and bridge fields. We are the industry leader in tunnel waterproofing sheets in Japan, and in tunnel excavation auxiliary construction methods, we provide safe, economical, and reliable consulting sales that match the needs of the site. We will continue to accurately respond to the needs of the civil engineering field through our own research and development.
Materials for Tunnels

Injected Long-Form First-Forward Method (AGF Method)
Safe, secure, and reliable ground preceiving reinforcement required for excavation of mountain tunnels
F-S bolt method (face bolt)
Suppresses extrusion and loosening of the ground at the tunnel face
injecting material

fair-system
Following/Automatic/ICT and
i-Construction/Remote and
Realtime - system
Rock bolt
Sewn into the ground to prevent collapse
Mortar director
Rock bolt ICT mortar filling volume visualization
SG-sheet
The most used waterproofing membrane sheet for tunnel in Japan
QCsmart
Labor-saving pressurization and negative pressure testing of waterproof sheets using ICT technology
TDsensing
ICT welding machine with visible welding data
fair-stock
NATM Labor-saving Ordering and Inventory Management at NATM Sites Using ICT
Filter Sheet Tough
Evolved water permeable formwork sheet
Polistron
Polypropylene fiber for concrete reinforcement
Lattice girder
Improved construction accuracy and quality when assembling reinforcing bars for tunnels