摘要
为了解决高瓦斯矿井工作面采空区瓦斯涌出问题,以高河能源E2306工作面为对象,研究提出采用高位大直径钻孔替代高抽巷进行采空区瓦斯治理,确定了高位大直径钻孔布置参数和施工工艺,并对抽采效果进行了井下试验分析。从瓦斯浓度、抽采混量和抽采纯量进行分析对比,高位大直径钻孔替代高抽巷抽采效果更好。
In order to solve the gas emission problem in the goaf of high gas mine face,taking the E2306 working face of Gaohe Energy as the object,the paper proposes to use high-level big diameter drilling instead of high-level drainage roadway to control gas in goaf,and determines the arrangement parameters and construction technology of high-level large diameter drilling,and analyzes the underground test and analysis of the pumping effect.Based on the analysis and comparison of gas concentration,mixed amount and pure amount of gas extraction,it is found that the effect of high-level large-diameter borehole instead of high-level drainage roadway is better.
作者
冯争
Feng Zheng(Lu'an Chemical Group Shanxi Gaohe Energy Co.,Ltd.,Shanxi Changzhi 046100)
出处
《山东煤炭科技》
2021年第7期132-134,140,共4页
Shandong Coal Science and Technology
关键词
采空区
高位
大直径钻孔
瓦斯抽采
goaf
high position
large diameter drilling
gas drainage
