煤矿安全2019，Vol.50Issue(9)：9-12,4.DOI:10.13347/j.cnki.mkaq.2019.09.005
煤的瓦斯放散特性多因素影响试验
Multi-factor Influence Test for Gas Discharge Characteristics of Coal
摘要
Abstract
In this experiment, the effects of metamorphic degree, water content and particle size on the gas discharge rate of coal samples were studied by single factor experiment. Then the orthogonal test and variance analysis were used to study the significance of the influence of three factors on the gas discharge rate of coal samples. The test results show that the gas emission rate of coal increases with the degree of metamorphism of coal sample, decreases with the increase of water content of coal sample, and increases with the decrease of particle size. The gas discharge rate is approximately logarithmically related to the degree of coal sample metamorphism, and is approximately quadratic with the immersion time, and is approximately a power function relationship with the particle size. The orthogonal test data is analyzed by variance analysis to obtain three factors for coal sample gas. The degree of influence of the release rate from large to small is: degree of deterioration, water content and particle size.关键词
煤与瓦斯突出/瓦斯放散特性/单因素/正交试验/幂函数Key words
coal and gas outburst/gas release characteristics/single factor/orthogonal test/power function分类
矿业与冶金引用本文复制引用
魏宗勇,薛梦华,胡宇航,范富槐,周雨璇,杨婷,龚宴兵..煤的瓦斯放散特性多因素影响试验[J].煤矿安全,2019,50(9):9-12,4.基金项目
国家自然科学基金资助项目(517042228) （517042228）
