The Power Source for Coal and Gas Outburst

被引：0
|
作者：
Lin Hong
Dameng Gao
Jiren Wang
Dan Zheng
机构：
[1] Liaoning Technical University,College of Safety Science & Engineering
[2] Key Laboratory of Mine Thermodynamic Disaster & Control of Ministry of Education,undefined
来源：
Journal of Mining Science | 2019年 / 55卷
关键词：
Coal and gas outburst; nitrogen adsorption experiment; Dubinin-Radushkevich equation; power source; micropore filling; adsorption of multilayer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The experiments were carried out connected with nitrogen adsorption on coal samples. The aim was to find out the power source for coal and gas outburst. The experimental data were fitted by the function of f(x)=axb. The total volume of micropores and the degree of micropore volume filled by nitrogen were calculated by the Dubinin-Radushkevich equation. In unexploited coal body, the gas desorption occurs in a unit, it could trigger a desorption of the neighboring units of coal body. When it reaches a certain level that can push the coal body forward, the coal and gas outburst would happen. For materials containing micropores and mesopores, like coal, the inflection point was the demarcation point of micropore filling and adsorption of multilayer.
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页码：239 / 246
页数：7
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