ATLAS Copco’s new automation software lets the drill rig do the work. Dynamic tunnelling package is a new automation software for face drilling rigs, which gives improved accuracy of the excavation thanks to the fact that drill plans always will be fitted for the current section.

With this software the drill rig can create its own drill plans directly at the face of the tunnel. Simply by downloading the contours of the tunnel or mine drifts to the drill rig together with a drill rule file enables the drill rig to create drill plans tailored for the section it is navigated within. No more going back and forth with drill plans is needed.

“Today, in tunnelling projects, especially large ones in urban areas, there are differences in the cross section. You go up and down with your drill plans,” said Atlas Copco product manager Boomer Johan Jonsson. “The Dynamic tunnelling package helps you so you don’t have to go up and down anymore. The drill plan is made on the drill rig and at the face.”

Atlas Copco customer Veidekke and their RV80 project in Norway was a pilot project for the package.

“Veidekke is working on the State Highway 80 project in Bodø. There’s a tunnel that’s two times 2.5km where we are going to excavate about 500,000 cubic meters of rock,” said Veidekke manager Surveying Technic Underground Jon-André Nilsen. “The collaboration with Atlas Copco to develop the Dynamic tunnelling package went well. Atlas Copco was responsive to our feedback and made adjustments to the program.

“Today, drill rig operators make niches manually. They can turn out way too big or way too small. Dynamic tunnelling package makes our drilling more precise. We can make changes to drill plans directly on the rig. We can move cuts or drill-holes. We are more flexible at the tunnel face compared to making all changes at the office.

“We use the Dynamic tunnelling package to make niches (areas of the tunnel with larger cross section). This makes the work more precise,” he said.

“The Dynamic tunnelling package is very easy to use. It is two keystrokes and you are started. The contour turns out very accurate,” said Veidekke drill rig operator Kent Simensen. “The end result is identical to the drawing. Dynamic tunnelling package has made my work in the tunnel a lot easier.”

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