摘要
为制定可行的瓦斯抽采方案,在确定顶板裂隙基本情况下,应用SF_6示踪技术研究了平顶山煤矿十矿己_(-24130)岩石工作面采空区三维空间漏风路径及瓦斯运移路径。结果表明:在采样高度49 m的裂隙带上部,距离工作面距离越远,示踪气体浓度越低,上邻近层瓦斯释放量越大。该研究结果为确定瓦斯抽采钻孔位置提供参考。
In order to establish a feasible scheme of gas extraction, the SF_6 tracer technique was used to study the three-dimensional air leakage path and gas migration path in the goaf of Ⅵ-24130 which in the ten mine of Pingdingshan coal under the condition of the roof fissure. The results show that the longer the distance from the working face is, the lower the concentration of tracer gas is, so the amount of gas released from upper adjacent layer is higher, which at the upper part of the fractured zone with a height of 49 m. The results provide a reference for the location of gas drainage boreholes.
引文
[1]秦汝祥,陈凯,戴广龙,等.采空区三维漏风路径示踪测试[J].安全与环境学报,2015,15(5):34-38.
[2]武瑞龙,李希建,黄良,等.近距离三软薄煤层群综采工作面瓦斯治理技术[J].煤炭科学技术,2016,44(2):99-103.
[3]秦汝祥,戴广龙,闵令海,等.基于示踪技术的Y型通风工作面采空区漏风检测[J].煤炭科学技术,2010,38(2):35-38.
[4]李玉明.能位测试与示踪气体联合检测在复杂采空区漏风中的应用研究[J].华北科技学院学报,2013,10(1):36-38.
[5]张曦,戴广龙,聂士斌,等.应用能位测定法和SF6示踪技术检测孤岛工作面小煤柱漏风状态[J].矿业安全与环保,2016,43(5):41-44.