综采工作面上隅角瓦斯治理实践

Practice on Gas Control on Upper Corner of Fully Mechanized Mining Face

以柴沟煤矿1511工作面为研究对象,分析了U型通风工作面上隅角瓦斯超限原因,以及影响上隅角瓦斯浓度的相关因素。针对1511工作面上隅角瓦斯超限情况,在常规瓦斯防治措施的基础上,用上隅角瓦斯抽放措施对工作面进行上隅角瓦斯治理。实践表明,通过措施的实施,上隅角和回风流瓦斯浓度明显降低,上隅角瓦斯治理效果显著。

Taking 1511 working face as the research object, by analysis of the cause of gas overrun on the upper corner at U--shaped ventilation working face and the factors related to the gas concentration, the author presents the measures of gas drainage on the upper corner to carry out the gas control on the upper corner of the fully mechanized mining face, which have obviously reduced the gas concentration of the upper corner and return cur rent with remarkable gas control effects.