Results 11 to 20 of about 27,740 (262)
Coal mining and coal use: the European perspective [PDF]
The Lancet Planetary Health, 2019 n ...
Michele Emiliano +7 more
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Architecture and key technologies of coalmine underground vision computing
Meitan kexue jishu, 2023 It has always been a common demand to stay away from the harsh environment with narrow space, numerous devices, complex operation process, and hidden hazards, and realize intelligent unmanned mining in the coal industry.
Jian CHENG +8 more
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Advances in Civil Engineering, 2023 Water inrush is the biggest threat for safe mining in the Ruifeng coalmine, located in North China. In the study mining area, the floor water inrush is mainly caused by mining activities and collapse column.
Run Liu +3 more
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Advances in Civil Engineering, 2021 During the grouting operation in the underground coal mine, abnormal curing behaviors such as foaming and drainage often lead to the loss of reinforcement effect of the polyurethane/water glass (PU/WG) materials on coal walls and even cause safety ...
Xiaofeng Yu +4 more
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Recovery of Coal Mine Methane and Its Utilization with a Newly Developed Gas Concentration System
Journal of MMIJ, 2018 Kushiro Coal Mine is located in southeast of Kushiro-City, Hokkaido, Japan and the only underground as well as under seabed coal mine. Paleogene Harutori Coal Bearing Formation is mined over the long period.
Hiroyuki MATSUMOTO +4 more
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Turkish Thoracic Journal/Türk Toraks Dergisi, 2015 The underground coal mining, in terms of fatal and injury accidents, has the first place among all businesses due to "spontaneous combustion of coal" and "presence of methane gas" in coalmines. In May 2014, the most casualties (301 people) of recent years occurred in the Soma Eynez mining quarry that accounts for almost half of the death of the last 30
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Load Capacity of steel arches with shotcrete coating [PDF]
E3S Web of Conferences, 2019 The shotcrete technology (application of a concrete layer) is widely used in coal mines. The applied layer of shotcrete to the underground workings support, changes the load capacity of the entire supporting system (and its elements).
Ficek Paweł +3 more
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Advances in Materials Science and Engineering, 2022 According to the universal law of thermodynamics, the failure of any substance is closely related to its energy change. Understanding the strain energy and rock burst tendency of rock or coal under different loading rates is critical in many geological ...
Jiang Hu, Jingang Li
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Canaries in the coal mine [PDF]
European Respiratory Journal, 2013 Up until 30 years ago, coalminers relied on canaries as warning systems against harmful gases and pollutants underground. The miners listened for birdsong and if the birds fell silent, then they knew there was danger to their health and to take action. Today we have much more sophisticated information and reporting on the quality of air.
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