Results 71 to 80 of about 3,077,132 (240)
Prediciton of the remaining service life of superheater and reheater tubes in coal-biomass fired power plants [PDF]
, 2013 As a result of concern about the effects of CO2 emssions on the global warming, there is increasing pressure to reduce such emissions from power generation systems.
Asgaryan, Mohammad
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Simulation analysis of buffer energy absorption effect of pressure-relief coal
, 2021 In order to study the buffering and energy absorption effect of pressure-relief coal on impact energy, the local model of the surrounding rock of the roadway was established by the particle flow software. We analyzed the impact energy buffering effect of
LI Xiaoliang, GUO Weiyao, YIN Yanchun, XIAO Yaxun, TANG Xingxue
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Advances in Materials Science and Engineering, 2023 This article conducted acoustic emission tests of natural coal, natural frozen coal, and saturated frozen coal to explore the damage characteristics of frozen coal and in view of the frozen coal damage early warning problems and explored the strength ...
Xiang Sun, Bin Liu, Qi Dong, Feng Shi
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Materials, 2023 Research on the mechanical properties and damage evolution of coal during true triaxial cyclic loading and unloading is of great significance for maintaining the long-term safety and stability of underground engineering structures in coal mines.
Chongyang Jiang +5 more
semanticscholar +1 more source
International Journal of Coal Science & TechnologyThis study focuses on steeply inclined and extremely thick coal seams (SIETCS) characterized by immense thickness, a steep inclination of coal seams (87°), and high horizontal stress. The geological conditions and mining technology associated with SIETCS
Taoping Zhong +8 more
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Size Effect on Acoustic Emission Characteristics of Coal-Rock Damage Evolution
Advances in Materials Science and Engineering, 2017 Coal-gas outburst, rock burst, and other mine dynamic disasters are closely related to the instability and failure of coal-rock. Coal-rock is the assemblies of mineral particles of varying sizes and shapes bonded together by cementing materials.
Zhijie Wen +4 more
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Experimental study on deformation and damage characteristics of liquid CO2 freeze-thaw coal [PDF]
Improving the permeability of coal seam is a common method to improve the efficient extraction of coal seam gas. Using liquid CO2 as fracturing medium to freeze-thaw coal is one of the methods to improve the permeability of coal seam.
ChaoJun FAN +5 more
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Macro-mesoscopic perspective damage characteristics and energy-damage constitutive model of coal-rock composite structures subjected to cyclic loading [PDF]
During deep coal mining processes, periodic mining disturbances cause the neighboring coal strata to bear the effects of cyclic loading and unloading, making it essential to study the mechanical responses and macro-micro failure characteristics of the ...
Jiazhi SUN +5 more
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Research on the Characteristics of Coal Bump and Monitoring and Early Warning in Hujiahe Coal Mine
Geofluids, 2022 Under the high intensity mining disturbance, coal bump is easily triggered by the sudden release of large amount of elastic energy contained in the coal body, which seriously affects coal mine safety production.
Fei Yu, Tong Zhang, Zhen Wei
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, 2022 To solve the water hazard problem of Jurassic coal seam roof sandstone in Yinxing No.1 Coal Mine of Ningxia Province, the direct relationship between the sedimentary environment of Jurassic coal seam roof sandstone and water abundance was analyzed and ...
ZHAO Shijun +3 more
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