Results 11 to 20 of about 1,438 (180)
Записки Горного института, 2021 The reasons for the lag of the indicators of the leading Russian coal mines engaged in the longwall mining of the flat-lying coal seams from similar foreign mines are considered.
Аndrey A. Meshkov +2 more
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Modeling of Coalmine Methane Flows to Estimate the Spacing of Primary Roof Breaks
Mining, 2022 The global challenge for the mining sector is the problem of “decarbonization” of coal mining. The modeling of emission flows of coalmine methane is stipulated by the need to prove the environmental effect of the implemented technological changes.
Vladimir Sergeevich Brigida +2 more
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The Impact of Atmospheric Pressure Changes on Methane Emission from Goafs to Coal Mine Workings
Energies, 2023 Increased effectiveness of methane drainage from sealed post-mining goaves in hard coal mines contributes to reduced methane emission from goaves into the mine ventilation system.
Adam Duda
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Investigation of Stochastic Fluctuation Spreading Through a Longwall Gob
Proceedings of the International Conference on Applied Innovations in IT, 2023 We considered a problem of random fluctuation spreading in complex multilayer rock strata during longwall extraction of a coal seam at a great depth.
Victor Nazimko +2 more
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Geosciences, 2022 Upward surface movement or uplift has been extensively observed above abandoned and flooded deep coal mines, which used the longwall mining method, i.e., a caving method. Detailed analysis of satellite measurements indicated that the process of uplift is
Andre Vervoort
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Energies, 2023 Decarbonization of the mining industry on the basis of closing the energy generation, on the basis of cogeneration of coal mine methane, and on the internal consumption of the mine is a promising direction in ensuring sustainable development.
Boris V. Malozyomov +6 more
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The Roof Support Load Analysis for Pre-Driven Recovery Room Parameters Design [PDF]
E3S Web of Conferences, 2020 Submitted by generalized experience entry longwall into pre- driven recovery room (PDRR) in foreign and Russian mine.Submitted by research characteristic state parameters of the roof at failed entry. Give a classification of roof collapse at the entrance
Zorkov Danil +3 more
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Rock pressure relief is the basic alternative for sustainable underground mining [PDF]
E3S Web of Conferences, 2021 Retreat longwall mining is the most productive system for underground extraction of tabulated deposits. However, the steady growth of the mining depth dramatically increased the ground pressure in chain pillars protecting the longwall entries. Therefore,
Nazimko Victor +3 more
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Frontiers in Earth Science, 2023 To investigate the failure mechanisms of coal bursts in the longwalls of underground coal mines, a case study based on the real coal burst in the Tangshan coal mine occurring on 2 August 2019 was carried out to analyze the cause and basic theories of the
Dongxu Jia +3 more
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Field and numerical modelling on the stability of underground strata in longwall workings
Energy Geoscience, 2023 The longwall method is one of the feasible and efficient underground mining methods for greater depth of workings. Recently, Singareni Collieries Company Limited (SCCL), the largest coal-producing government company in the Southern part of India, has ...
G. Budi, K Nageswara Rao, Punit Mohanty
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