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Applications of Geophysical Measuring Methods for the Exploration and Securing of Old Mine Workings Near the Surface Using the Example of the Former Lignite Mine Robertshall

During the expansion of the Ehestorfer Heuweg road in the village of Ehestorf, district of Rosengarten/Germany, a daybreak occurred on 11th September 2019, which had a diameter of approximately 0.5 m and a depth of approximately 5 m. Research in the archives of the State Office for Mining, Energy and Geology (LBEG) in Clausthal-Zellerfeld revealed that the probable cause of ...

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WG Heave Phenomena – Insights, Knowledge Transfer, Research Topics, Results

Even before the Act on the Financing of the Phase Out of Subsidised Hard Coal Mining came into force at the end of 2018, the effects of mine flooding on mining damage were increasingly becoming the focus of public attention. In order to pool knowledge on the possible effects of mine flooding on the surface in advance, the working group ...

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Mining Law and Water Management Challenges as a Result of the Coal Phase-Out

In the Rhenish mining area, RWE Power AG operates the three opencast lignite mines Inden, Hambach and Garzweiler. According to the original plans before 2016, the Hambach and Garzweiler opencast mines were scheduled to run until 2045, the Inden opencast mine until 2030. In the context of the energy turnaround, the opencast mine plans and lifetimes have been adjusted several ...

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Wind Power for the Transition at Coal Sites – Prospects and Problems

Wind power is one of the politically prioritised options for the energy transition to climate neutrality at coal sites, although the use of “Carbon Capture and Storage” (CCS) technology during coal-burning operations is also a possible method for the reduction of CO2 emissions. Wind power is undergoing impressive technological and economic development, and its expansion enjoys a high priority in energy ...

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Mine Water Monitoring in Closed Mines at RAG Aktiengesellschaft

The shutdown of hard coal production in 2018 implicates a challenge in deriving of physical and chemical parameters of mine water in situ. Finishing underground activities is going along with a limitation of alternative application of monitoring methods. This report is focussing on measures to derive sufficient information about water rebound in former mines. Exemplarily results of an underground monitoring ...

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Integrated Monitoring of Rising Mine Water Levels in the Hard Coalfields of North Rhine-Westphalia – a System under Development

The year 2020 marked the start of an integrated process aimed at monitoring rising mine water levels in the former hard coal mining industry of the Ruhr coalfield and the Ibbenbüren coalfield. This paper presents the different topics that are to be dealt with and the assessment strategy that has been laid down for the monitoring operation and also examines ...

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Abandoned Mine Workings in Western USA – Legal, Organisational and Technical Challenges

There is an old saying that “mining is not a one-man operation”. This is borne out by the ongoing dialogue that is needed across the disciplines to manage the environmental issues associated with the mining life cycle at a local and wider level. Given the global nature of the mining industry we now need to develop a productive outcome by ...

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Restructuring of the Coal Industry in Ukraine

Ukraine ranks 7th place in the world in terms of coal reserves. On the territory of Ukraine there are three coal basins: Donetsk, Lviv-Volyn and Dnipro, the largest of which is the Donetsk basin, where 85 % of Ukraine’s coal resources are concentrated. Since the mid of the 1990s the coal industry of Ukraine is being restructured, the purpose of which ...

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Digital Twin – Integrated Geomonitoring

One of the main challenges facing us today is the environment and how to protect it. Mining activities over the years have had an enormous impact on the three environmental elements water, soil and air. Ground movements in mining areas can be observed both during the mineral winning phase and after this has ended. This phenomenon may affect the water ...

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Historic Mining Infrastructure as an Opportunity for Regional Water- and Energy Supply: The Water Reservoir Harz 2050 Project

High precipitation, dams and waterworks make the Harz Mountains a large freshwater supplier. But, challenges arise based on climate change and extreme weather events. Old mine working can support water management if integrated into the system. Successful planning and integration need a holistic understanding of the regional water cycle, the current situation of the mine workings and the interaction. The ...

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