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Energy principle of simulation experiments on coal and gas outburst
Meitan xuebao, 2023 Coal and gas outburst is an extremely destructive gas dynamic disaster in mines. Since such dynamic disasters are usually difficult to observe directly, physical similarity simulation of coal and gas outburst has become an important method for collecting
Yuanping CHENG, Yang LEI, Sijie YANG
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Гидроимпульсное воздействие на выбросоопасный угольный пласт [PDF]
, 2012 Рассмотрены результаты исследований параметров гидроимпульсного воздействия при гидрорыхлении выбросоопасных угольных пластов с целью предотвращения внезапных выбросов угля и газа.Розглянуто результати досліджень параметрів гидроїмпульсної дії при ...
Васильев, Д. Л. +3 more
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Meitan xuebaoA large amount of gas rapidly released during coal and gas outburst is an important cause of dynamic effects such as outburst shock waves and coal-gas two-phase flow.
Jie CAO +4 more
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Research Status and Prospect of Coal and Gas Outburst Prevention and Control by Hydraulic Technology
Meikuang Anquan, 2020 Coal seam pressure relief and permeability increase is an effective means to prevent coal and gas outburst, coal and rock mass structure transformation is the core problem of coal seam pressure relief and permeability increase, hydraulic technology is ...
CAO Yaolin
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Research progress of coal and gas outburst mechanism based on geological structure
Meikuang Anquan, 2022 Aiming at the problem of coal and gas outburst in the process of coal mining in China, this paper first summarizes the research progress of coal and gas outburst mechanism, and points out that the research on outburst mechanism of tectonic belt is of ...
ZHAO Junli, WANG Wenyuan, YANG Wei
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Method of drilling of coal pillar [PDF]
, 2011 One of outputs of the research project of the Czech Mining Office “Protection of Employees against Consequences of Rock and Gas Outbursts” was the application of yet not used methods of coal mining in the conditions of the Czech Republic.
Hudeček, Vlastimil, Stoniš, Milan
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Failure Mechanism of Coal and Gas Outburst Initiation
Procedia Engineering, 2011 Abstract Based on the concept that the initiation of coal and gas outburst is the failure of coal and rock mass, the relevant stability theory is applied to build a nonlinear dynamics model of outburst initiation, and the failure mechanism of outburst initiation is systematically analyzed.
Hongwei, Jin, Qianting, Hu, Yanbao, Liu
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Updating the aerodynamic resistance for subsurface ventilation [PDF]
, 2019 For the safety works in the mines good ventilation is one of the main requirements. For miners’ performance, the subsurface ventilation creates healthier and more hygienic conditions. Mine ventilation has always belonged to the field of mining. Moreover,
Kosowski, Maciej +2 more
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Controlling effect of tectonic stress field on coal and gas outburst
Meitan xuebao, 2023 To investigate the controlling effect of tectonic stress field on coal and gas outburst, the gas geology, tectonophysics and rock mechanics methods were applied to analyze the influences of tectonic stress field on tectonic coal, in-situ stress and coal ...
Deyong GUO +3 more
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ABOUT THE REASONS FOR THE AMPLITUDE INCREASE OF THE SEISMOACOUSTIC OSCILLATIONS WITH FREQUENCIES OF THE HAZARD RANGE AT COAL SEAMS MINING [PDF]
, 2018 Determine the reasons for the amplitude increase (growth) of the seismoacoustic oscillations with frequencies of 700-1400 Hz in mine workings, which is one of the main criteria in the gas-dynamic phenomena ...
GOLOVKO, Yuri +2 more
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