Projects
Deepening a shaft whilst extraction continued - Prosper-Haniel Shaft 10
The men-material Prosper-Haniel 10 shaft had to be deepened by 272 m whilst the shaft continued to be in operation. A large new shaft station was excavated at the 7th level and supported with rockbolts, mesh and shotcrete. On completion of the shaft sinking works, the new shaft part was equipped with 6 shaft guides and 7 pipelines.
The shaft was deepened whilst extraction work continued. The new part of the shaft was separated from the existing part by a 6 m high safety platform covering the complete cross-section of the shaft. A large 2-sides shaft station with an average final diameter of 12,5 m and 10 m long accesses both sides was constructed. A smaller shaft station was excavated near to the final depth.
