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Statistical Analysis of Acoustic Emission in Uniaxial Compression of Tectonic and Non-Tectonic Coal [PDF]

open access: yesApplied Sciences, 2020
Tectonic coal has become an important research topic for preventing coal mine disasters and for exploring and developing coal-bed methane resources.
Rong Liu   +4 more
doaj   +2 more sources

Discussion on concept and classification of tectonic coal seam

open access: yesMeikuang Anquan, 2022
In view of the important role of tectonic coal in coal mine safety production and CBM resource development, on the basis of systematically reviewing the relevant research on tectonic coal at home and abroad, the necessity of defining tectonic coal seam ...
FU Jiangwei, FU Xuehai, LI Peng, ZHANG Yang
doaj   +2 more sources

Study of the vibration frequency characteristics of tectonic coal containing assemblages at different loading rates [PDF]

open access: yesScientific Reports
To reduce the vibration frequency superimposed on the original vibration frequency of a coal seam containing structural coal, damage to the coal structure should be reduced, and the occurrence of coal and natural gas outburst accidents should be ...
Pengxiang Zhao   +7 more
doaj   +2 more sources

Study on pore structure and fractal characteristics of high-rank intact coal and tectonic coal

open access: yesMeikuang Anquan, 2023
In order to study the pore structure and fractal characteristics of high-rank intact coal and tectonic coal, the selected coal samples were studied by mercury intrusion method and low pressure N2 adsorption method and low pressure CO2 adsorption method ...
LI Ziquan, ZHANG Dongming, ZHANG Linyu, WANG Xiaolei
doaj   +2 more sources

Comparative study on gas adsorption characteristics between outburst hole tectonic coal and primary structural coal

open access: yesMeikuang Anquan, 2021
In order to study the influence of the pore characteristics of tectonic coal and primary structural coal on the gas adsorption characteristics, we take Sanjia Coal Mine outburst hole tectonic coal and primary structure as the research object, use the ...
MA Ruishuai, TIAN Shixiang, LIN Huaying, XU Shiqing, SU Weiwei, XIE Hongfei
doaj   +2 more sources

Impact of tectonic deformation on coal methane adsorption capacity [PDF]

open access: yesAdsorption Science & Technology, 2019
Tectonic deformation can cause significant changes in the physical and chemical structures of coal by damaging the macrostructure and macromolecular composition.
Wu Li, Bo Jiang, Yan-Ming Zhu
doaj   +2 more sources

Study on instability mechanisms and control of coal pillar spalling and coal crumbs leakage during working face crossing faults [PDF]

open access: yesScientific Reports
The stability of coal pillars in fault areas is crucial for ensuring the safe passage of working faces. Based on field observations, frequent coal pillar spalling and substantial tectonic coal crumbs leakage, as well as tilting of hydraulic supports, are
Jiaxin Zhao   +5 more
doaj   +2 more sources

Deformation energy of tectonic coal and its role in coal and gas outbursts

open access: yesMeitan xuebao
Coal and gas outburst is an underground dynamic disaster driven by coal deformation energy and gas expansion energy. Although the comprehensive effect hypothesis of outbursts has been widely recognized, the role of coal deformation energy in outbursts ...
Yuanping CHENG, Chenghao WANG
doaj   +2 more sources

The characteristics of methane adsorption capacity and behavior of tectonic coal

open access: yesFrontiers in Earth Science, 2023
The research of methane adsorption on tectonic coal is an important content to gas disaster prevention and coalbed methane (CBM) exploration in outburst coal seams.
Hang Zhang   +5 more
doaj   +1 more source

Controlling effect of tectonic stress field on coal and gas outburst

open access: yesMeitan 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
doaj   +1 more source

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