TUnIS Navigation MTLaserTotalstation
TUnIS Navigation MTLaserTotalstation is an expert microtunnelling navigation system for long-distance and curved drives based on a travelling laser total station and an active target in the machine.
Reason why
The purpose of TUnIS Navigation MTLaserTotalstation is to increase tunnelling performance for long-distance and curved drives by minimising unplanned downtimes.
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When tunnelling speed is paramount, minimising downtimes is crucial. This requires reducing necessary control measurements to a minimum while continuously monitoring the TBM position and tunnel movements.
TUnIS Navigation MTLaserTotalstation determines the horizontal and vertical position of the TBM by a laser total station in conjunction with several reference and target prisms and an electronic target unit inside the TBM. The laser total station is permanently installed in the pipeline and moves forward together with the pipes being pushed in while advancing.
Alternative calculation methods such as vertical coupled navigation provide indications of floating thrust pipes.
Benefits
- 50% less control measurements
Compared to a gyro-based system: Less interruption of tunnelling, shorter downtimes, increased tunnelling performance. - “Quick Check” option
Simplifies and speeds up the control surveying process, reducing downtimes and significantly simplifying system handling. - Control of the product pipe position 30-50 m behind the TBM
Ensures less deviation from the design alignment, enables more precise steering and thus reduces the jacking forces – which, in turn, reduces the load on the pipes. - Peace of mind in the control cabin
Due to the integrated correction curve, the smart error management and the same familiar TUnIS Navigation MT software interface for any microtunnelling project.
Add-Ons
Radius Monitoring
Radius Monitoring is an assistant function focussing on bending radii for small diameter pipe jacking and Direct Pipe® projects.
The feature provides the machine operator with most precise data to keep the TBM within the permitted radius range. Integrated into the TUnIS Navigation MT platform, the assistance function supplements the navigation system with extensive data on the curve radius for precise tunnelling.
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Benefits:
- Compliance with documentation requirements:
Radius Monitoring ensures that the documentation and the reporting meet the specifications of the customers. - Improved navigation precision:
Radius Monitoring shows the driver the radius in real-time and thus offers the possibility to optimise the precison of the steering. - Conformity with the alignment:
The automatic monitoring of the radii supports the driver to stay within the limits of the pipeline’s maximum bending radii. - Decrease in cost:
Thanks to the system the monitoring of the radii is carried out automatically. Costs for surveying personnel can be saved.
Contact
For more information or project inquiries do not hesitate to contact our expert.
