SW-4 shaft tubing ring no. 300 completed

SW-4 shaft tubing ring no. 300 completed

Published 06 October 2009

The end of September has proven to be a breakthrough in the construction of the SW-4 shaft due to the completion of the 300th ring of ferroconcrete casing called tubing. One tubing ring increases shaft depth by 1.5 meters. After 14 months of sinking and temporary equipment 460 meters of completed shaft have been reached.

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