塔山煤矿8104综放面瓦斯分布规律研究

Study on Gas Distribution Rule of 8104 Comprehensive Mechanized Caving Face in TASHAN Mine

塔山煤矿8104综放工作面面临瓦斯灾害威胁,准确掌握该工作面的瓦斯分布规律,有利于提升瓦斯灾害防治工作的有效性。本文分别采用钻孔法和束管监测法对采空区的瓦斯浓度进行了测定,并在工作面采场内划分单元,也测定了瓦斯浓度。研究结果显示:塔山矿8104综放工作面采空区瓦斯浓度自下而上呈增大的趋势;由外到里也呈增大趋势,且瓦斯浓度的增大分为三个阶段;在工作面100号支架至上隅角之间的区域是采空区瓦斯涌出集中的区域,在实施瓦斯治理时要以此为主要治理区域。

8104 Comprehensive Mechanized Caving Face is confronted with gas disaster in TASHAN Mine,it is propitious to upgrade validity of gas prevention for predominating its gas distribution rule exactly.In the text,In the text,gas consistency was determined by making use of drill bore method and beam tube monitoring method respectively in goaf,and the stope was caved up some cells in the work face,and the gas consistency was determined too.The research result are as follows： in the goaf of 8104 Comprehensive Mechanized Caving Face in TASHAN Mine,the gas consistency assumes the increscent trend from bottom to top;the trend is also increscent from outside to inner,and its trend may be set off three phases;the area from NO.100 bracket to the top corner in working face is the mass area of gas effusing from goaf,and it is main area when gas was fathered.