Tunnelling

Complete Tunnelling software solution

The NRG Tunnelling software is designed to check the clearances for the final tunnel alignment. It can also calculate overbreak and underbreak volumes, along with a range of setting out options for laser guidance and tunnel floor intersection points.

Tunnel alignments can be entered either manually or by extracting digital design information. Errors can then be checked and eliminated.

Two alignments can be compared i.e. that of the tunnel and the laser. By entering details of how the tunnel centre and target are related to the setting out.

Shapes are hung from the design alignment to represent a design profile or a train’s kinematic envelope and react with the cant of the tracks in a variety of ways to meet most design criteria.

Tunnel section monitoring report showing horizontal vertical movement and convergence over time
Tunnel section monitoring report showing horizontal vertical movement and convergence over time
Tunnel cross section report
Tunnel cross section report
Redesigning a tunnel alignment
Redesigning a tunnel alignment
Running a tunnel wriggle report
Running a tunnel wriggle report
Monitoring tunne -profiles in the deformation monitoring module
Monitoring tunne -profiles in the deformation monitoring module

NRG Surveys Tunnelling Software

View more details and ordering information on NRG Surveys Tunnelling module
Isopach plan showing deformation along a tunnel the more intense the shading is the greater the movement is
Isopach plan showing deformation along a tunnel the more intense the shading is the greater the movement is
Creating a shape file in the shape editor
Creating a shape file in the shape editor

Wriggle reports to highlight overbreak or underbreak

Asbuilt surveys can be imported and converted into section files. The asbuilt position can be compared to the design alignment and if required the alignment can be redesigned to put the tunnel back on track.

Reports can be created by running a wriggle using surveyed asbuilt data and the design data to highlight overbreak or underbreak areas. Along with overbreak or underbreak volumes, maximum and minimum clearances and pinch points. The tunnelling software can also use a train’s kinematic envelope and the design data for clash detection.

Tunnel monitoring allows asbuilt profiles to be monitored. Reports can be generated showing graphs of movement/time, jellyfish plots, convergence and divergence,isopachs along with excavation steps to show the progress of the tunnel.

Entering details of how the tunnel centre and laser target are related
Entering details of how the tunnel centre and laser target are related
Comparing asbuilt tunnel data to the tunnel design alignment
Comparing asbuilt tunnel data to the tunnel design alignment
A sample tunnel wriggle report in NRG Tunnelling module.
A sample tunnel wriggle report in NRG Tunnelling module.