Guardrails for sloping roof: How the Niobec mine protects his roof

Initial situation Located in Saint-Honoré, Saguenay-Lac-Saint-Jean, the niobium deposit, known as the Niobec mine, has evolved since 1967. Today, this mine is one of the three largest producers of niobium in the world. It is also the only underground mining of this metal in the world. To protect workers who have access to the roof, […]