Results 11 to 20 of about 12,324 (191)
Study on causes and prevention and control measures of coal and gas outburst in Chensilou Coal Mine
Meikuang Anquan, 2021 For the problem of coal and gas outburst in Chensilou Coal Mine, based on gas geology and tectonophysics theory, the cause of “4·10” coal and gas outburst was discussed from geological factors and engineering factors by using field investigation and ...
WANG Wei, CHEN Peihong, LIU Decheng
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Gong-kuang zidonghua, 2020 In view of problems of complicated calculation process, strong subjectivity and low accuracy in existing prediction methods of coal and gas outburst, a principal component-Fisher discriminant model was constructed and applied to the prediction of coal ...
CHEN Lian +6 more
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Study on pore characteristics of gas outburst coal in Sanjia Coal Mine of Guizhou Province
Meikuang Anquan, 2023 In order to reveal the differences in microcrystalline structure parameters and pore structure between gas outburst coal and raw coal, this paper studied the structural parameters and fractal characteristics of coal samples inside and outside outburst ...
JIAO Anjun +3 more
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Fractal pore and its impact on gas adsorption capacity of outburst coal: Geological significance to coalbed gas occurrence and outburst [PDF]
, 2022 Pore structure and methane adsorption of coal reservoir are closely correlated to the coalbed gas occurrence and outburst. Full-scale pore structure and its fractal heterogeneity of coal samples were quantitatively characterized using low-pressure N2 gas
Feng, Guangjun +6 more
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Shock and Vibration, 2021 Coal and gas outburst is one of the major disasters in the safety production of coal mine. According to the mechanism of coal and gas outburst, based on the comprehensive analysis of various influencing factors of coal and gas outburst, with the ...
Bo You +5 more
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Development of a quantitative assessment approach for the coal and gas outbursts in coal mines using rock engineering systems [PDF]
, 2017 In this study, a new approach is proposed and developed for evaluating the comprehensive outburst index (range between 0 and 100), which is a quantitative assessment approach and will enable us to better understand the risk degree of coal and gas ...
Herrera Herbert, Juan +2 more
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Coal and gas outburst dynamic system
International Journal of Mining Science and Technology, 2017 Coal and gas outburst is an extremely complex dynamic disaster in coal mine production process which will damage casualties and equipment facilities, and disorder the ventilation system by suddenly ejecting a great amount of coal and gas into roadway or working face. This paper analyzed the interaction among the three essential elements of coal and gas
Chaojun Fan +4 more
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Destabilization of the hard coal microstructure by a weak electric field [PDF]
, 2018 This study aims to analyse physical and chemical changes in hard coal samples under the influence of low-intensity electric fields in comparison to the fragments of ejected coal, as well as the coal samples selected from the zones ...
Kamchatnyi, Oleksii +3 more
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Особенности протекания процесса выброса угля и метана в забое выработки при различных способах ее проведения [PDF]
, 2012 Виконано чисельне моделювання процесу викиду вугілля та метану у вибої одиночної гірничої виробки, для випадків, коли вона проводиться комбайновим та буропідривним способом по викидонебезпечному пласту.
Ajraoui +60 more
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Geofluids, 2021 Coal and gas outburst is still a major safety problem in the process of coal production in China. Correctly understanding of the migration law of outburst high gas and pulverized coal is an important basis for accurately predicting the occurrence time ...
Xusheng Zhao +3 more
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