一、概述采煤工作面上隅角的瓦斯超限,是采煤工作面的一大常见安全隐患。这一隐患随着矿井不断向深部开发和开采强度的增加,对安全生产的影响越来越突出。如果处理不当,不但制约采煤工作面的高产高效,而且会酿成瓦斯事故。处理上隅角瓦斯超 First, an overview of coal mining face on the corner of the gas overrun, coal mining face is a common security risk. This hidden danger as the mine continues to develop deep and mining strength increases, the impact on production safety more and more prominent. If not handled properly, not only restricts the high efficiency of coal mining face, and will lead to gas accidents. Gas upper treatment on the corner