回采工作面瓦斯涌出规律研究  

THE STUDY OF METHANE OUTFLOW LAW IN COAL MINING FACE

作　　者：叶青[1] 林柏泉[1] 姜文忠[1] 

机构地区：[1]中国矿业大学能源学院,徐州221008

出　　处：《中国矿业》2006年第5期38-41,共4页China Mining Magazine

基　　金：国家自然科学基金项目(50134040);国家重点基础研究发展计划(2005cb221500)

摘　　要：某矿2781回采工作面经常发生瓦斯浓度超限现象,为掌握该工作面瓦斯涌出规律和确保工作面安全生产,笔者对该工作面瓦斯涌出量进行了实测,对工作面瓦斯涌出来源及构成进行了分析,并利用回归分析法,找出了工作面落煤、煤壁瓦斯涌出规律,获得了采空区瓦斯浓度分布规律,为工作面的通风管理与安全生产提供了必要的技术指导。With the increase of mining deepness, the phenomena of methane concentration exceeding limits is often happen in the 2781 coal mining face, to find out the methane outflow law and ensure the safe work, the methane outflow of the coal mining face is mensurated and the methane source is analyzed in this paper. Based on the regression analysis, the methane outflow laws of coal wall and fallen-coal in coal mining face are obtained, and the methane concentration distributing law is gotten. Which are the techno-elements of adopting the aimed preventive measures.

关 键 词：瓦斯涌出 回采工作面 煤壁 落煤 采空区 

分 类 号：TD712.5[矿业工程—矿井通风与安全]