煤矿安全2019，Vol.50Issue(3)：162-166,5.DOI:10.13347/j.cnki.mkaq.2019.03.040
综采工作面三维空间风速与瓦斯浓度分布规律实测与分析
Measurement and Analysis of Three-dimensional Distribution Laws of Wind Speed and Gas Concentration in Fully Mechanized Coal Face
摘要
Abstract
In order to obtain the distribution laws of wind speed and gas concentration in the three-dimensional space of roadway of fully mechanized mining face, adopting the research methods of field measurement and theoretical analysis, taking 14205 fully mechanized face of Shaqu Coal Mine as the research object, gas concentration and wind speed in fully mechanized coal face during production period and maintenance period were measured. The distribution laws of wind speed and gas concentration in fully mechanized mining face from three spatial directions of working face roadway strike direction, working face advance direction and perpendicular to working face floor direction were analyzed respectively. The results showed that the roadway section area near the coal wall was best area for wind measurement, and the roadway area which was near the coal wall and at the lower half section of roadway in front of half length range of coal face and the roadway area which was near the gob and at the upper half section of roadway in the length of the second half of coal face were key monitoring areas of gas concentration.关键词
综采工作面/瓦斯浓度/风速/工作面巷道走向方向/工作面推进方向Key words
fully mechanized coal mining face/gas concentration/wind speed/heading direction of working face roadway/advancing direction of coal mining face分类
矿业与冶金引用本文复制引用
..综采工作面三维空间风速与瓦斯浓度分布规律实测与分析[J].煤矿安全,2019,50(3):162-166,5.基金项目
国家自然科学基金资助项目(51374104) （51374104）
南方煤矿瓦斯与顶板灾害预防控制安全生产重点实验室开放基金资助项目(E21822) （E21822）
安全生产重特大事故防治关键技术科技资助项目(hunan-0004-2017AQ) （hunan-0004-2017AQ）
