Tunneling

Our water-powered DTH hammers is the ideal choice for drilling applications such as; drilling long straight survey, grout and drainage holes, forepoling, anchor drilling and drilling for cut-off walls and anchors.

Download our Tunneling brochure

Suitable for most Tunneling applications

Click on the Application below that you are interested in.

Anchor drilling

Our water-powered drilling technology has a proven track record of its ability to drill long straight holes, which is essential when drilling for anchoring.

Cut-off walls

Cut-off walls often involves drilling in water rich formations which is easily done with the water-powered Wassara DTH hammer.

Ground reinforcement

Jet-grouting holes can either be pre-drilled using the water-powered Wassara DTH hammer, or in one single pass with the unique Wassara Jet-Grouting hammer.

Forepoling

The high water flows one might encounter during casing advancing/forepoling during tunneling will not interfere with the Wassara-hammers performance.

Survey, grout and drainage holes

Regardless of tunneling method, traditional drill and blast or Tunneling Boring Machine (TBM), there is a need to drill long straight holes.

Case studies

See our featured Case studies below to learn what real world Tunneling-projects our technology has been a part of.

Tunneling

Sustainable and accurate drilling for securing an immersed train tunnel in Stockholm

The City Line railway project builds a six km long commuter train tunnel under the central parts of Stockholm, Sweden
Tunneling

Wassara goes under water in New York

New York City needs a new water supply system, and the contractor for this big project decided to use the Wassara W50 hammer on their Robbin’s TBM-machine
Tunneling

Jet-grouting for the Brenner Base-tunnel between Austria and Italy

LKAB Wassara’s W120 water-powered hammer played a decisive role in the making of the tunnels going under the river Isarco, near Fortezza in Italy.