掘进工作面疏放小煤窑采空积水储量分析

Analysis of Gob Ponding Reserves of Small Coal Mines in Heading Face

为准确判明小煤窑采空积水静储量是否疏放完毕,以腾晖煤业北翼探巷小煤窑疏放水为例,采用钻探、窥视测斜确定采空积水标高,跟踪水质化验分析采空积水动静储量。结果表明:北翼探巷外侧+321.5 m标高以上采空积水静储量已经疏放完毕,稳定的5 m^(3)/h涌水为动态补给水。

In order to accurately determine whether the static reserves of gob ponding in small coal mines have been drained,taking the drainage of small coal mines in the north wing exploration roadway of Tenghui Coal Industry as an example,the elevation of gob ponding is determined by drilling and peeping,and the dynamic and static reserves of gob ponding are analyzed by tracking water quality test.The results show that the static reserves of gob ponding above the elevation of + 321.5 m outside the north wing exploration roadway have been drained,and the stable 5 m^(3)/h gushing water is dynamic make-up water.