Single-pass linings are rapidly gaining favour and can now be achieved to a high standard of construction and finish using precast segmental, or sprayed concrete.
Sprayed concrete
is the only method of tunnel lining support that forms an immediate and intimate
bond with the strata that interacts actively with the ground surface instead
of passively requiring the ground to move before it begins to resist that
movement. A properly applied sprayed concrete lining is equivalent in strength,
impermeability and durability to conventional cast in place concrete, and
is often better in terms of compaction.
Bekaert
n.v. - steel fibre reinforcement
Normet Corporation - mobile
equipment for tunnels and mines
Shinhan - shotcrete
jumbos, utility cars, ventilation fans, ducting, asphalt and concrete plants
Rascor - system
engineering for waterproofing and grouting
Euro Panels Overseas - Glasal NT world #1 tunnel
lining panel
Dätwyler - designers and manufacturers
of rubber and plastic gasket profiles
Shotcrete Technologies Inc - specialist shotcrete
products and services
Putzmeister - tunnel
lining, pumping and shotcrete equipment
Mühlhäuser
- experts in railbound transportation systems
Phoenix - segment gaskets and conveyor belts
Häny
Grouting Systems - Simple and Reliable
Sireg
- manufacturers of geotechnical products
Skanska
UK Civil Engineering - Tunnelling Division - Leading
Tunnelling & Ground Engineering Contractor
MSD
Dresden - design and fabrication of transportation systems and solutions,
TBM backup, start and run-out shaft systems, ancillary equipment and logistics
Thermal
Ceramics - high-temperature resistant materials
Propex
Concrete Systems - fibre reinforcement to make
good concrete better
HiCo
- steel and synthetic reinforcement fibres for shotcrete and concrete
Korea
Mould
- quality segment lining products
BarChip
- synthetic reinforcing fibre