Mining Tunneling

RASCOR Tunnel- und Spezialtiefbau GmbH has, overmany years, built up a broad base of expertise in injection applications, such as anchor grouting and void filling. Drawing on products from our RASCOflex, we are able to deliver top-class waterproofing solutions to meet all requirements.

Rock stabilization
Umbrella injection to stabilize rock prior to excavation
Ground consolidation
Injection ahead of TBM drive to stabilize soft ground or eliminate water pockets
Void filling
Injection to fill and seal dry or waterlogged voids behind tunnel linings
Temporary earthwork support
Rapid, reliable waterproofing of contiguous bored piling, sheet piling, diaphragm walls and anchor heads as well as base of launch and reception pits
Water ingress
Immediate localized waterproofing measures at back end of shield to prevent water infiltration
Cross-passage junctions
Waterproofing of junctions with connecting galleries and escape routes and/or connections
to main tunnel
Tubbing joints
Permanent sealing of leakages due, for example, to defective rubber gaskets, through injection into joint or behind tubbings
Cracks in tunnel lining
Injection of cracks in in-situ concrete tunnel linings for waterproofing or structural strengthening
Anchor and injection holes
Localized stopping and sealing of anchor and injection holes to prevent water infiltration
at these locations