综放面瓦斯抽采高抽巷布置参数优化分析

Optimization analysis of layout parameters of high level suction roadway for gas extraction in fully mechanized caving face

为了确定高抽巷的合理位置,进而保障矿井的安全开采,根据阳泉煤业集团和顺新大地煤业有限公司15201综采工作面的地质参数,结合瓦斯高抽巷的相关经验,确定了煤层开采过程中的关键层,采用导水裂隙带经验公式粗略估算出高抽巷的大致位置后,以UDEC软件对高抽巷的变形破坏情况进行数值模拟,最终确定了高抽巷的理想层位。分析结果表明,在走向高抽巷位于工作面9倍采高时,巷道顶底板移近量及两帮移近量都较小,巷道断面完整性较好。

In order to determine the reasonable position of high level suction roadway and ensure the safety mining of coal mine,according to the geological parameters of No.15201 fully mechanized mining face in Xindadi coal mine,using the empirical formula of the water flowing fractured zone and UDEC software,the reasonable position of high level suction roadway was finally determined.The research results show that when the high level suction roadway is located at 9 times the mining height of the working face,the deformation of the roadway is small and the integrity of the roadway section is good.