Experimental study on disaster caused by instability of loaded gas-bearing coal-rock combination [PDF]
Meikuang AnquanWith the depletion of shallow coal resources in China, the depth and intensity of coal mining have gradually increased in recent years, the amount of gas emission has increased sharply, and coal-rock compound disasters occur frequently, which brings ...
Yang LI +3 more
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Study on strength limit neighborhood range of gas-bearing coal rock under different loading conditions [PDF]
Meitan kexue jishuThe occurrence mechanism of coal and gas outburst disasters is still unclear. According to the rheological hypothesis, gas-bearing coal and rock may enter the “strength limit neighborhood” under long-term load, and it is more likely to be destroyed by ...
Bo WANG +6 more
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Study on influencing factors and prevention measures of coal-rock-gas compound dynamic disaster in deep coal mine mining [PDF]
Scientific ReportsBecause coal seam mining with high geostress and high gas pressure is prone to coal–rock–gas compound dynamic disasters, a disaster energy equation considering the influence of roof elastic energy is established, and a disaster energy criterion ...
Xu Wang +5 more
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Gong-kuang zidonghuaThe automatic perception and alarm method for coal mine rock burst and coal and gas outburst is an effective measure to timely detect accidents and emergency rescue, reduce casualties, avoid or reduce secondary accidents such as gas and coal dust ...
SUN Jiping, CHENG Jijie
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Theoretical and technological concepts of synergistic coal and natural gas extraction [PDF]
Meitan kexue jishuThere are a large number of overlapping coal and natural gas resources in China, and due to the requirement of resource extraction efficiency, a large number of overlapping coal and natural gas resources need to be extracted synchronously in the same ...
Shengli YANG +5 more
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Experimental and modelling studies of coal/biomass oxy-fuel combustion in a pilot-scale PF combustor [PDF]
, 2014 This thesis focuses on enhancing knowledge on co-firing oxy-combustion cycles to boost development of this valuable technology towards the aim of it becoming an integral part of the energy mix.
Jurado Pontes, Nelia
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Structural-tectonic factor of gas potential formation in the coal rock massifs of the Donbas
Мінеральні ресурси України, 2015 Distribution of natural gases within the Donets basin is very irregular that stipulated by the depth variation to the methane zone, degassing level of the coal measure and data on coal mines gas regime.
V. L. Pluzhnikova, N. V. Verhelskа
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Pulverised coal combustion in high CO2‚ oxygen-rich environments [PDF]
, 2007 Experiments on pulverised coal combustion in air and 02/C02 mixtures of various molar ratios, were conducted in a 20 kW-rated, down-fired furnace equipped with a single pulverised fuel (pt) burner, which was designed for the laboratory-scale experimental
Zailini, Ramlan
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Natural gas types and coal-rock gas classification in the whole petroleum system of coal measures
Petroleum Exploration and DevelopmentJunfeng ZHANG +3 more
exaly +2 more sources
Investigation into the gas adsorption-loading coupling damage constitutive model of coal rock [PDF]
Arabian Journal of Geosciences, 2021 Abstract Coal and gas outburst is the result of comprehensive action of in-situ stress, gas and mechanical properties of coal rock. The coupling effect of loading and gas adsorption eventually leads to the coal rock failure. Based on the principle of strain equivalence and considering the coupling effect of gas adsorption and stress loading, an
Zhongzhong Liu +4 more
openaire +1 more source