Fachartikel_01_2015

Issue 02/2015 The deepening of number 10 shaft and an extensive programme of development work has given Prosper-Haniel colliery access to new reserves of coal on mine level 7, at a depth of 1,159 m. In order to extract the gas outburst-prone Zollverein 1/2 seam in the Prosper North district, where the coal is up to 4.65 m in thickness, ...

Introduction    In July 2014 the Federal Ministry for Economic Affairs and Energy (BMWi) in Berlin published a new Energy Reference Projection for Germany (1). This study was carried out for the BMWi by the Institute of Energy Economics (EWI), Cologne, the Institute of Economic Structures Research (GWS), Osnabruck, and the Economic Research Institute AG, Basel and Berlin, under the ...

Ausgabe 01_2015 The colliery closure programme under way in the German coal industry has also involved the permanent filling of mine shafts after underground operations have come to an end. The chosen filling technique depends very much on the future requirements that the shaft will have to meet. At RAG-operated sites the fill column in the disused shaft becomes a ...

Ausgabe 01_2015 The mostly applied shaft sinking method is conventional shaft sinking by drilling and blasting. Using this method, almost any shaft geometry is feasible and challenging ground conditions can be sunk through with acceptable sinking performances. Particularly mucking and hoisting operations of the sinking cycle have a relevant impact on sinking performance and offer a considerable optimization potential. Nevertheless ...

Ausgabe 01_2015 Thyssen Schachtbau GmbH, based in Mülheim an der Ruhr, has for the last five years been increasingly engaged in drilling and freeze-shaft sinking operations in the Russian Federation. A whole range of projects of this kind have been delivered during this period. The most notable of these has been a shaft sinking in the Perm region and another ...

The mining journal Glückauf, which was founded by the Association for Mining Interests (VbI) of Lower Rhine and Westphalia, first appeared on 1 January 1865 as a supplement to the Essener Zeitung. When the last edition was published with volume number six in 2014 the journal had been in existence for 150 years. It was against this background that the ...

Ausgabe 01_2015 Unlike the shaft barriers used for the dry preservation of former mine workings and underground storage sites, shaft seals designed for radioactive-waste repositories must also fulfil additional requirements associated with the design diversity of the sealing system. This diversity makes use of the simple redundancy principle in order to prevent the proliferation of defects. In practice this means ...