摘要
荥巩煤田开采煤层为高变质二1煤。《防治煤与瓦斯突出规定》中消突临界值8 m3/t是针对中等变质煤种而定,不适合荥巩煤田所采二1煤层。为此,对崔庙煤矿已采二1煤层工作面煤巷掘进和回采情况进行了分析与技术研究,确定了荥巩煤田所采二1煤层区域消突临界值。
The coal seam in Xinggong Coalfield is Ⅱ1high rank coal. The prevention of the coal and gas outburst regulations ＂ fire process critical value 8 m^3/ t is the medium rank coals and not suitable for seam in Xinggong Coalfield mined coal. Therefore,the status quo of coal roadway and coal winning on mined Ⅱ1coal seam of working face in Cuimiao Coal Mine were analysed and studied,critical value of outburst elimination in ＂ Three Soft＂ coal seam of Xinggong Coalfield was determined.
出处
《中州煤炭》
2015年第12期19-22,共4页
Zhongzhou Coal
关键词
荥巩煤田
三软突出煤层
消突临界值
Xinggong Coalfield
＂ Three Soft＂ coal seam with outburst danger
outburst critical value
