Atlas Copco launches deep mine rock bolt that adapts to movements underground
A new type of rock bolt that can adapt to rock deformation or displacement underground, while maintaining a constant load capacity, has been developed by Atlas Copco.
Following in the footsteps of Swellex rock bolts and MAI self-drilling anchors, the Roofex deep mine rock bolt fulfils the need for effective bolting in difficult underground applications such as tunnelling in squeezing ground or deep mining in poor quality rock.
- Mark Bernthaler, Marketing Manager Ground Engineering
+43 (0)4245 65 166 810 or +43 (0)664 345 35 32
- Francois Charette, Product Manager rock bolting
+43 (0)4245 65 166 808 or +43 (0) 664 23 24 595
- Mathias Lewén, Vice President Communications
+46 (0)8 587 785 40 or +46 (0)70 240 80 06
- Picture 400890: Three products that represent Atlas Copco innovation in rock reinforcement – (from left), the new Roofex deep mining rock bolt, the MAI self-drilling anchor (SDA) and the Swellex rock bolt.
- Picture 400889: Roofex, the latest rock bolting concept from Atlas Copco is ideal for new, deep underground excavations in poor quality rock or in areas prone to rock burst or seismic events.
- Picture 400892: The components and functions of Roofex
- Picture 400891: How the Roofex works. The energy absorber is fixed in the borehole and enables the bolt to extend under load. In this way, the bolt adapts to slow rock deformation or sudden displacement while retaining a constant, pre-set load capacity.