Recent Findings in the Sinking of Shafts Using Rod-Less Shaft Boring Machines

摘要

The shaft sinking technique using rod-less shaft boring machines was developed under a study group of specialist mining concerns - Thyssen Schachtbau GmbH, Deilmann-Haniel GmbH and Wirth Maschinen- und Bohrgeraete- Fabrik GmbH. The rod-less pit boring machine GSB 450/500, regarded as the predecessor to the shaft boring machine, has been tested over a bore hole length of more than 2,1 km. The SB VI-500/650 E/Sch shaft boring machine used for the first time to sink the pit in the Preussag AG Konle Ibbenbueren East Field coal mine, has proved itself from the start, in the case of shaft sinking schemes previously carried out. Therefore the rod-less shaft boring method appears to be promising.