煤矿安全2019，Vol.50Issue(12)：14-17,4.DOI:10.13347/j.cnki.mkaq.2019.12.004
围压作用下煤粉充填煤岩裂隙渗流特性
Seepage Characteristics of Fractures in Coal Rock Filled with Pulverized Coal Under Confining Pressure
摘要
Abstract
To study the influence of different particle sizes pulverized coal filling on coalbed methane permeability, the paper took II1 coal reservoir of Zhaogu No.1 Mine of Jiaozuo Coal Industry as the research object, 20 to 40 mesh, 60 to 80 mesh and 100 to 120 mesh pulverized coals were used as filled media. Under certain confined pressure, experiments were carried out on coal rock fissure permeability characteristics with different pressures and different crack widths. The results show that under certain confined pressure, with the increase of air pressure, the permeability of coal-rock fractures filled with coal powder with the same fracture width and different particle sizes increased first and then decreased, and the peak permeability decreases with the increase of coal size; in the coal-rock fractures filled with coal powder with the same mesh width, the permeability of coal rock crack increases with the filled width.分类
矿业与冶金引用本文复制引用
陈金刚,郑战士,张泷..围压作用下煤粉充填煤岩裂隙渗流特性[J].煤矿安全,2019,50(12):14-17,4.基金项目
国家自然科学基金资助项目(11602227) （11602227）
河南省瓦斯地质与瓦斯治理重点实验室开放基金资助项目(WS2013A04) （WS2013A04）
