Tunnel system DokaCC

The cut & cover traveller

The modular Tunnel system DokaCC is used in cut-and-cover construction method to form rectangular or round tunnel cross-sections quickly and with fewer materials. The applicability on all common types of foundations provides additional benefit in terms of efficiency.
Stations and lines
Mining method
Cut-and-cover method
Less assembly work, because small number of shoring frames due to statically optimised load-bearing system
Less work due to small number of operating points
The optimised V-strut angles ensure high safety against overturning or slippage of the wall foundation
Safe up/down access via integrated caged ladderway
Large drive-through access openings for site traffic
Clearly structured documentation from assembly drawings through to risk assessment
CE mark is standard in Europe
Hydraulic lifting appliance for easy lifting, lowering and precision-adjustment of the forming wagon - manual operation is also an option
Optimised travelling structure for repositioning without adaptation
Optional: Short set-up times, because components of formwork and load-bearing systems are pre-assembled
Formwork and expertise from a single source
Doka is your full-service partner on complex tunnel projects – from planning through project management to solutions that work – everything from a single source.
Innovative system design
System can be used on foundations of all types.
Practical stop-end formwork
Large platforms allow sufficient stripping paths
Safe to use
The innovative design ensures that the forming wagon remains securely on the rails, no issues with derailing even during lateral shifting.
Quick and easy repositioning
The hydraulic lifting appliance makes it easy to lift, lower and precision-adjust the forming wagon.
- Cut-and-cover method
  Diel tunnel | Slovakia
  Project highlights
  The wide drive-through opening ensures smooth site traffic in all phases of the build
  Sustainable: After only minor adaptations, the forming wagon was used for another project
- Cut-and-cover method
  Stalvedro tunnel | Switzerland
  Project highlights
  Significant longitudinal gradients
  Easy conversion from round to rectangular cross-section
  Travelling on strip foundations
- Cut-and-cover method
  Schwamendingen tunnel | Switzerland
  Project highlights
  Deployment of the forming wagon in both traffic directions
  Deployment while traffic passes in the opposite direction
  Movable stop-end formwork for lane edges
Application Videos