高突矿井厚煤层巷道掘进瓦斯涌出规律  

Law of gas emission at excavating roadway in thick seam of high gas and outburst mine

作　　者：洪林[1] 王继仁[1] 齐庆杰[1] 昌孝存[1] 

机构地区：[1]辽宁工程技术大学安全科学与工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第3期321-324,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(50574047);国家十五科技攻关基金资助项目(2005BA813D05-1);教育部博士点基金资助项目(20060147002)

摘　　要：为了寻求一套适合高瓦斯突出矿井厚煤层开采的技术方法、实现安全高效回采,研究了高突矿井同一区段厚煤层保护层、被保护层与先抽后采煤层三种情况下煤巷掘进期间瓦斯涌出规律,对比分析了各巷道瓦斯涌出差异的原因。研究结果表明:采用大面积预抽煤层瓦斯的方法可以有效降低煤层瓦斯含量、保证巷道掘进安全。该方法作为区域性防突措施是安全、经济、可行和有效的,而且比开采保护层的方法更加经济、高效,尤其是高突矿井厚煤层群的回采,采用该种措施的经济效益和社会效益更加明显。To seek the technique method for mining the thick seam in high gas and outburst mine safely and effectively, experimental researches are carried out on the laws of gas emission coal roadways such as protective seam, protected seam and beforehand drainage seam while excavating in the thick seam at the same area in high gas and outburst mine, and the causes are anslyzed. The researches show that the beforehand drainage could reduce the gas quantity effectively and it prevents gas outburst safely, economically, feasibly and effectively. And it is more economical and effective than mining the protective seam. Especially for the thick seams in high gas and outburst mine, the economical and societal benefit is more obvious.

关 键 词：高瓦斯突出矿井 保护层 预抽 掘进 瓦斯涌出规律 

分 类 号：TD712[矿业工程—矿井通风与安全]