Abstract
AbstractThe Borth underground salt mine with an annual production volume in the range of 2 m t of halite is amongst the largest underground mines in Central Europe. All mined halite is transported to the central hoisting shaft with belt conveyor systems. To ensure a safe and efficient operation of the main conveyor belt, precautionary support measures in geotechnically stressed areas of various stopes were necessary. For the rehabilitation measures, an innovative anchoring system was applied using 3.7 to 5.7 m long hollow bar anchors which were first anchored mechanically in a borehole, pre‐stressed and then fully grouted with resin.
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