Results 21 to 30 of about 1,438 (180)
Spatial non-linearity of methane release dynamics in underground boreholes for sustainable mining
Записки Горного института, 2020 The paper is devoted to the problem of increasing energy efficiency of coalmine methane utilization to provide sustainable development of geotechnologies in the context of transition to a clean resource-saving energy production.
Ada K. Dzhioeva, Vladimir S. Brigida
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Strata Caving and Gob Evolution Characteristic in Longwall Mining
Shock and Vibration, 2022 It is usually difficult to capture strata caving and gob evolution characteristic in longwall mining at engineering scales. This paper uses bonded block modelling (BBM) approach within a distinct element method (DEM) code to simulate strata behaviour in ...
Weidong Pan, Xinyuan Li, Zhining Zhao
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FACTORS TO BE CONSIDERED FOR THE DESIGN OF FACE SUPPORTS IN LONGWALL MINING METHOD [PDF]
JES: Journal of Engineering Sciences, 2022 The main purpose of mine workings is the exploitation of ores and minerals that are used in different aspects of life. The most common underground method all over the world is the longwall mining method.
Peter Haroon +3 more
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The Impact of Cutting with a Shearer on the Conditions of Longwall Ventilation
Energies, 2021 In coal mines that are exploiting methane-saturated seams, high-level emission of methane is often the basic limitation for modern and high-efficiency longwall complexes.
Wacław Dziurzyński +3 more
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Analysis of Possible Origination of Domes in Longwalls
Горные науки и технологии, 2019 The research is aimed at solving problems of assessing underground working stability in complicated mining and geological conditions to increase reliability and safety of mining operations.
R. I. Imranov +4 more
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Applied Sciences, 2021 Dust control is one of the most difficult challenges for underground coal mine operators, especially longwall mine operators. The most widely used dust control technologies at a longwall section are ventilation air and water sprays, whereas a continuous ...
Sampurna Arya +2 more
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A case study of the stability of a non-typical bleeder entry system at a U.S. longwall mine
International Journal of Mining Science and Technology, 2020 Longwall abutment loads are influenced by several factors, including depth of cover, pillar sizes, panel dimensions, geological setting, mining height, proximity to gob, intersection type, and size of the gob.
T.M. Klemetti +3 more
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Energies, 2022 The main goal of the paper is numerical simulation for investigation of damage causes in the working of a longwall located under the unmined longwall panel. The paper presents the results of model-based research on the stability of the roof of a longwall
Sylwester Rajwa +4 more
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Analysis and Assessment of Parameters Shaping Methane Hazard in Longwall Areas
Journal of Sustainable Mining, 2013 Increasing coal production concentration and mining in coal seams of high methane content contribute to its growing emission to longwall areas. In this paper, analysis of survey data concerning the assessment of parameters that influence the level of ...
Eugeniusz Krause, Adam Smoliński
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, 1995 As part of EIA`s program to provide information on coal, this report, Longwall-Mining, describes longwall mining and compares it with other underground mining methods. Using data from EIA and private sector surveys, the report describes major changes in the geologic, technological, and operating characteristics of longwall mining over the past decade ...
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