Fachartikel
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International Mining Remains the Bedrock of our Industry
Given the ongoing corona crisis this is perhaps an appropriate moment to examine what is happening in the overseas mining sector in these uncertain economic times. The German economy continues to require increasing quantities of raw materials, a demand that simply cannot be met from indigenous sources. Moreover, Germany will…
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Vision Zero Cooperation Agreements
At the heart of cooperation agreements between the Social Accident Insurance Institution for the Raw Materials and Chemical Industry (BG RCI), Heidelberg/Germany, and its member companies is the public voluntary commitment to the VISION ZERO prevention strategy. The goal is to secure higher levels of safety and health in the…
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Effective Date for Fibrogenic Mine Dust and Quartz in Mining Operations
The new version of § 13 of the Regulation for the Protection of Health in Mining Operations (GesBergV), which entered into force in October 2019, establishes new measures for underground non-bituminous coal mining operations in the event of fibrogenic mine dust contamination by referencing the Hazardous Substances Regulation and applicable…
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Long-Term Management of Mine Water Operations in the German Coalfields – an Interim Evaluation of the Findings Based on Operating Plans and Hydrological Permits
The cessation of coal mining in North Rhine-Westphalia on 31st December 2018 marked the start of a period of long-term aftercare measures. The end of coal winning also meant that the original purpose of the mine dewatering operations, which was to make it possible to extract the resources in the…
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The Casing Pipe Method of Converting Mine Water Pumping Stations to Well-Type Operation Based on the Example of CarolinenglĂĽck 3 Shaft
The northwards migration of the coal mining industry created a well-developed network of underground roadways and this allowed interconnected collieries to be organised as combined water drainage systems. This resulted in a centralisation of the water pumping operations. The mine water is currently pumped to the surface at a total…
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Explosion-Proof Casing-Pipe Obturator with Flap Valve Mechanism
Optimising the mine de-watering arrangements involves converting the centralised drainage systems to water wells. In order to retain access to the mine water a series of casing pipes has to be cemented section by section into the filling column. These pipes can then be used at some future date to…
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Development of a Concreting System Based on the Climbing Formwork Concept for the Partial Filling of the Friedlicher Nachbar Shaft
The Friedlicher Nachbar shaft in Bochum is one of the 13 central water pumping stations operated by RAG Aktiengesellschaft, Essen/Germany. One of the unusual features of this installation is that the operation to convert to a well-type system has to be carried out without switching off the pumps in the…
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Long-term Impact of Coal Mining on Surface Movement: Residual Subsidence versus Uplift
It is well known that longwall mining leads to a significant amount of surface subsidence. This is driven by a mechanical stress-deformation process that is initiated when the roof collapses in the mined-out area. Since entire coal basins recently have been closed in Europe, the focus has moved more to…
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New Prospects
The landscaping of the State Garden Show 2020 in Kamp-Lintfort and the concomitant on-time clean-up and preparation of the area for future uses that are required are some of the special challenges facing RAG Montan Immobilien GmbH, Essen/Germany, which has been sustainably revitalising closed mining sites for more than 40…
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Research Areas in Post-Mining
The Research Institute for Post-Mining (FZN) at TH Georg Agricola University (THGA) in Bochum/Germany, has developed an integrated approach to meet the challenges of the post-mining era. Therefore, post-mining covers four research areas: Perpetual tasks and minewater management; Geomonitoring in post-mining; Material science for the preservation of industrial heritage; Reactivation…
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