2019锟斤拷锟?7锟斤拷

瓦斯膨胀能分布规律及突出预测指标临界值研究
发布人:网站管理员 发布时间:2019/7/30 点击次数:731次
  

瓦斯膨胀能分布规律及突出预测指标临界值研究
邢永刚
(霍州煤电集团李雅庄矿,山西霍州031400)
摘要: 霍州煤电集团李雅庄煤矿2号煤层经鉴定具有突出危险性。结合该矿所在区域的地质构造、地层岩性及水文地
质条件,介绍了李雅庄煤矿2号煤层产状特征及瓦斯等级,通过固态密封法及液态密封法测定了2号煤层瓦斯压力,分析
了煤层瓦斯膨胀能分布规律,并应用连续流量法预测了构造煤指标临界值,为煤矿的快速掘进及安全生产提供了基础数
据,为该煤矿预防煤与瓦斯突出提供了依据。
关键词: 突出煤层;煤巷;快速掘进;突出防治
中图分类号: TD713.2 文献标识码: A 文章编号: 2095-0802-(2019)07-0151-02
Study on Distribution Law of Gas Expansion Energy and Critical Value of Outburst Prediction
Index
XING Yonggang
(Liyazhuang Coal Mine, Huozhou Coal Electricity Group, Huozhou 031400, Shanxi, China)
Abstract: The No.2 coal seam of Liyazhuang Coal Mine of Huozhou Coal Electricity Group has been identified to be of outburst
danger. Combining with the geological structure, stratigraphic lithology and hydrogeological conditions of the area where the mine is
located, this paper introduced the occurrence characteristics and gas grade of the No.2 coal seam in Liyazhuang Coal Mine, measured
the gas pressure of No.2 coal seam by solid sealing method and liquid sealing method, analyzed the distribution law of gas expansion
energy in coal seams, and predicted the critical value of structural coal index by continuous flow method. It provided basic
data for rapid excavation and safe production of coal mine, and provided basis for preventing coal and gas outburst in the coal mine.

Key words: outburst coal seam; coal roadway; rapid excavation; outburst prevention