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TUnIS Navigation Double Shield

TUnIS Navigation Double Shield is a navigation system for double shield TBMs based on a total station and a laser-target unit mounted inside the TBM shield.

Reason why

The purpose of TUnIS Navigation Double Shield is the permanent determination of the current position of a double shield TBM to enable a smooth advance along the planned tunnel axis at any time.

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A safe, long-lasting tunnel structure requires maximum precision in tunnelling. Deviations from the planned route cost time and money. This is why double shield TBMs as the most technically demanding tunnel boring machines in particular need a most reliable and approved navigation system.

TUnIS Navigation Double Shield permanently determines and calculates all necessary data and information for navigating the TBM along the tunnel axis. To generate the data, a laser target is mounted in the gripper shield of the TBM along with a measuring camera which is aligned to a set of marker plates in the front shield.

A comparison of the rolling between the front and gripper plates is available as additional information. Further, it provides a complete documentation of the shield run in a database.

Benefits

  • Maximum tunnelling quality
    Hard-rock adapted target plate for the gripper shield and camera technology for the front shield for exact positioning.
  • Ring sequencing
    The VMT solution TUnIS Ring Sequencing is also available for double shield machines to support the TBM driver in calculating the ideal ring sequence in advance.
  • Flexible
    With the assistance system TUnIS.mono cam, the navigation system can also be used on double shield TBMs without length measurement systems in the thrust cylinders.
  • Mobile, safe operation
    With the TUnIS.mobile app, the total station can be modified twice as fast, reducing potentially dangerous operations to a minimum.

Downloads

Our product info gives an overview of the features and benefits of TUnIS Navigation Double Shield.

Contact

For more information or project inquiries do not hesitate to contact our expert.