Shaft Sinking

Mancala traditional shaft sinking capabilities have been utilised in numerous applications including:

  • Pre sinks in areas of poor ground conditions prior to full shaft excavation by other methods
  • Underground coal storage silos
  • Complete shaft excavation up to 6.0m diameter and 250m depth - concrete or fibrecrete lining
  • Ore pass refurbishment and lining by shrinking

 

The future:

  • Non-entry 14m diameter to 500m depth
  • Mancala in conjunction with Herrenknecht is developing methodologies to reliably sink and concrete line shafts at productivities which far exceed existing technologies