During driving in tunnels or galleries, it may be necessary to stabilize loose rock, rubble or soil in tunnel driving to protect the crew or equipment. In tunneling and gallery driving, grouting may be required to stabilize fault zones immediately ahead of the face and to reinforce the protector. Areas of use
Shifted, unstable rock strata, rock folds or sedimentary rocks
Loose rock mass, rubble, soil
Rock with high void content, karst
Water bearing strata and voids
In case of water ingress or pressurized water, additional water retention and sealing measures are required. Materials suitable for the tunneling method are; TBM Use: fixing injection systems such as silicate resins Cutting and planing
Non-stick properties
Suitable for rapid force development
In conventional tunneling such as drilling and blasting or digging, usually polyurethane injection systems Rapid force development
Flexibly adjustable
Provides water retention and sealing.
Depending on the size of the fault zones, it is required for head face stabilization, bulkhead grouting, rock mass stabilization or void filling.
Frequently Asked Questions
What is Tunnel Injection Necessary for?
In tunneling and gallery driving, grouting may be required to stabilize fault zones immediately in front of the face and to strengthen the protection.
