“三软”不稳定低透气性煤层采空区瓦斯综合治理技术研究  

A research on comprehensive gas control technology for use in gob areas in "three-soft" unstable coal seams with poor permeability

作　　者：刘三钧[1] 林柏泉[1] 李全贵[1] 孟凡伟[1] 李贤忠[1] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏省徐州市221116

出　　处：《中国煤炭》2010年第2期91-94,100,共5页China Coal

基　　金：国家自然科学基金资助项目(50534090;50574093);国家重点基础研究发展计划(2005cb221506);国家"十一五"科技支撑计划项目(2007baq00168-1)资助

摘　　要：以瓦斯流动、瓦斯赋存规律为基础,运用三维模拟软件Flunt进行建模,分析了采空区瓦斯在立体空间范围内的分布特征。指出了"三软"不稳定煤层瓦斯综合治理的必要性,提出了以煤层高抽巷抽放为主,以高抽巷埋管抽放、高位钻孔抽放为辅的"一主两辅"的采空区瓦斯综合治理技术。With the help of the regularities of gas flow and gas occurrence, 3-D simulation software Flunt is used to configure a model. In this way, an analysis is carried out on the charac- teristics of the 3-D distribution of gas in the space of gob areas. This paper points out the importance of the implementation of comprehensive gas control measures in ＂three-soft＂ and unstable coal seams. In concrete terms, it is proposed to mainly execute gas extraction from special drifts over the working coal seams and at the same time gas extraction from tubes buried in the special drifts over the working coal seams and gas extraction from high-positioned bore-holes as auxiliary measures. This ＂one major gas extraction complemented by two auxiliary gas extractions＂ is the so called comprehensive gas control technology for use in coal mine gob areas.

关 键 词：Flunt模拟 地透气性煤层 一主两辅 瓦斯综合治理 

分 类 号：TD721.6[矿业工程—矿井通风与安全]