136046 ⎘
Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings , e.g. by assembling; Lining with building materials Temporary supports for use during building ; Accessories
MOVABLE FORMWORK SYSTEM FOR CLADDING PART OF A TUNNEL
#2Composite support structure, construction system, and method
#3Tunnel construction method using pre-support and post-support and apparatus suitable for same
#4Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method
#5SHORING BOX SYSTEM AND METHOD