Fachartikel
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Suspend Coal Phase-Out – Keep Existing Plants in Operation and Reactivate Available Capacities, Give Transition More Time
While there are no fundamental doubts about the direction of the energy transition in Germany – much less the goal of achieving sustainability – the changes in the general circumstances dictating energy policy that have occurred in 2022 give rise to sound arguments in favour of suspending the coal phase-out…
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Securing an Air Shaft in Witten, Taking into Account an Overburdened Mine Water Level
At the beginning of March 2020, the Arnsberg District Government, Department of Mining and Energy in NRW, Dortmund/Germany, was notified of a repeated significant inflow of water in the area of a residential building in Witten. In view of the damage that had already occurred to the building and according…
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Development and State of the Art of Dust Control in International Mining and Tunnelling
The quest for safety for man and machine is becoming increasingly important in mining and tunnelling worldwide. Due to the mechanisation of sinking, tunnelling and extraction work in underground mining and processing, the amount of dust generated in the various work processes has steadily increased – in line with the…
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Dust Control in a Novel Technology for the Construction of Shafts
In Belarus, potash mining has been carried out intensively for about 60 years, so far by the state-owned company Belaruskali in six mines. Since 2011, the privately financed Nezhinskiy mine has been planned in the deposit near Soligorsk, and construction of this greenfield mine started in 2016. The planning from…
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Heat and Moisture Related Ventilation Problems for Dust Extraction Efficiency during Underground Roadheading Operations
Ventilation measurements and data from several days of underground monitoring were used to record the actual status of the mine climate and ventilation circuit at a rock salt mine. This provided the basis for identifying a number of critical parameters, including the problem of dust collection around boom-type heading machines.…
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Technical Aspects of Auxiliary Ventilation at Dust-Intensive Workplaces
Many different technical relationships and parameters have to be taken into account for the professional cleaning of dust-laden air. Filtering the dust load from the air requires a fan system to set the air in motion so that it can pass through the filters. In mechanised drivages and conventional tunnelling…
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Continuous Respirable Dust Monitoring with Localization
The U.S. Mine Safety and Health Administration (MSHA) mandates the use of continuous personal dust monitors (PDM) in underground mines to verify compliance with mandatory respirable dust standards. Regulation 30 CFR §70.100 establishes a limit of 1.5 mg/m3 averaged over an eight hour working shift. Miners who work in dusty…
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A Contribution to the Reduction of Occupational Accidents with Mobile Vehicles in the Raw Materials Industry
Digitization is increasingly modifying all process levels in the raw material industry, starting from processes, in which the interaction between man and machine is becoming increasingly important to the management section. Despite the technological advances, the rate of accidents between vehicle-to-vehicle and vehicle-to-human has increased in the past few years.…
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Mining Engineering Aspects of Underground Waste Utilisation in Saliferous Formations Based on the Mine GTS Grube Teutschenthal
Backfilling of the cavities created by mineral extraction to support the surrounding rock is understood to be an integral part of mining engineering. In contrast to this, underground waste disposal/utilisation is often referred to as a post-mining use of the mine workings, although it requires the same technology and know-how…
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Tests Aimed at Improving Conventional Salt Mining at Heilbronn
The extraction of rock salt at Heilbronn mine by conventional drilling and blasting is investigated on the basis of three key themes: Tests aimed at adapting the blasting pattern show that higher charging densities at the working faces result in greater efficiency in terms of advance per round and, even…
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