Results 61 to 70 of about 12,324 (191)
Influence law of abnormal coal thickness zone on coal and gas outburst
Meitan xuebaoCoal and gas outburst is the most serious dynamic disaster threatening the safety production of coal mines in China. The abnormal area of coal thickness is an important factor affecting the occurrence of coal and gas outburst.
Jupeng TANG +5 more
doaj +1 more source
Analysis of a historical accident in a Spanish coal mine [PDF]
, 2019 There has been a long history of coal mine accidents and these, usually, involve serious injuries, fatalities, and the destruction of facilities. In the seventies, an explosion killed 28 miners in a Spanish coal mine.
Anticoi Sudzuki, Hernán Francisco +2 more
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Coal and gas outburst features in Guizhou mining areas and its prevention countermeasures
Gong-kuang zidonghua, 2016 With collection and analysis of outburst indexs in 381 mines and 695 seams and 214 coal and gas outburst accidents occurred in 120 mines in Guizhou mining areas, a study on coal and gas outburst index distribution features and outburst features in ...
KONG Que +3 more
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Meitan xuebaoCoal and gas outbursts are dynamic disasters in coal mining characterized by complex energy release processes. To quantitatively investigate the dynamic effects and energy dissipation characteristics, a representative outburst coal sample from Longtan ...
Xuelin YANG +8 more
doaj +1 more source
Energies, 2018 Coal and gas outburst is one of the major serious natural disasters during underground coal, and the shock air flow produced by outburst has a huge threat on the mine safety. In order to study the two-phase flow of a mixture of pulverized coal and gas of
Haitao Sun +7 more
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EDEM-FLUENT coupled simulation of coal-gas outburst two-phase flow
Energy Exploration & Exploitation, 2021 In the process of coal-gas outburst, the gas-solid two-phase flow of pulverized coal and gas will induce large-scale damage to underground mining. In this work, in order to study the dynamic evolution law of gas-solid two-phase flow of coal-gas outburst,
Feng Du +5 more
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Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst
Advances in Civil Engineering, 2020 In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of ...
Fengxiang Nie, Honglei Wang, Liming Qiu
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Confirmation of natural gas explosion from methane quantification by headspace gas chromatography-mass spectrometry (HS-GC-MS) in postmortem samples: a case report [PDF]
, 2018 A new analytical approach for measuring methane in tissues is presented. For the first time, the use of in situ-produced, stably labelled CDH3 provides a reliable and precise methane quantification.
Augsburger, M., Varlet, V.
core
Prediction algorithm of coal and gas outburst based on IPSO-Powell optimized SVM
Gong-kuang zidonghua, 2020 In view of problems of coal and gas outburst prediction algorithm based on support vector machine(SVM) that prediction accuracy and reliability are not high, classification of nonlinear data is not considered when selecting kernel function, and ...
WU Yaqin, LI Huijun, XU Danni
doaj +1 more source
Soft coal solid–gas coupling similar material for coal and gas outburst simulation tests
Journal of Geophysics and Engineering, 2018 The adsorption, permeability properties, and damage evolution of internal cracks are often not considered in simulation tests for coal and gas outbursts. Therefore, in previous studies of similar materials, the materials used may not be similar in the properties mentioned above.
Sheng-quan He +3 more
openaire +1 more source