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  • Consulting
    Photogrammetric Joint Mapping for the Relocation of T.H. 53

    The Minnesota Department of Transportation (MnDOT) relocated a portion of T.H. 53 between Eveleth and Virginia, MN. The preferred alignment crosses the existing Rouchleau iron ore pit on a 1,100-foot bridge. Two abutments and one pier of the bridge will be founded on bedrock. Future iron ore mining adjacent to the alignment will create rock slopes up to 500 ft high. After mining, the new roadway will be atop a trapezoidal cross-section 300 ft wide at the top and with downslopes of about 53 degrees.

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    • Compared to Limit Equilibrium
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  • Learning
    Getting Started with FLAC2D/FLAC3D
    Sep. 23, 2025 - Sep. 24, 2025

    This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the graphical interface, documentation and the main modeling steps. Concepts are illustrated using a tunnel excavation example, from building the model geometry to results analysis. This introductory course provides the foundation for more advanced use of the software, which can be covered in more specific training modules.

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    • Tunnel Pulse with Quiet Boundaries
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    • Solving rock mechanics issues through modelling: then, now, and in the future?
    • Numerical modelling and seismicity at the Kiirunavaara Mine
    • Use of a Chemical Transport Code for the Prediction of Gold Heap Leach Production
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  • Events
    Getting Started with FLAC2D/FLAC3D
    Sep. 23, 2025 - Sep. 24, 2025

    This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the graphical interface, documentation and the main modeling steps. Concepts are illustrated using a tunnel excavation example, from building the model geometry to results analysis. This introductory course provides the foundation for more advanced use of the software, which can be covered in more specific training modules.

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  • About
    Joffre Sanftenberg
    Senior Engineer

    Mr. Sanftenberg is a Professional Engineer with 12 years of industry experience who boasts a strong background in bulk mining and narrow vein operations, planning and design, and mine systems. He has held various roles throughout his career including Project Management, Underground Supervision, Backfill Engineer, Mine Systems Lead, and most recently, Senior Mine Engineer. Throughout his career, he has focused on improvement projects related to drill and blast optimization, backfill systems, production management, and ventilation on demand as well as innovation with the design and implementation of autonomous mining and wireless blasting technologies.

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    • Itasca International Inc. announces the Selection of its New CEO
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Geomechanics • Hydrogeology

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