高阳矿31108工作面疏放上组煤积水实践

Practice on Dredge Seeper in 31108 Working Face of Gaoyang Colliery

针对高阳煤矿31108工作面上组煤采空区积水问题,根据水文地质条件,采用理论计算及现场实践的方法,疏放了上组煤采空积水。计算得上组煤积水量为6240.8 m3,并在31108工作面布置6个钻孔进行采空区积水的疏放,截至2017年7月18日疏放采空积水约7469 m3,疏放上组煤积水效果良好。同时,进行了6次水质化验,据化验结果分析,工作面掘进过程中取得的淋水水样均为太灰水,放水孔水样为老空水。

Based on the actual hydrogeological conditions of coal mines on 31108 working face of Gaoyang Colliery, theoretical calculations and field practice methods have been used to discharge the upper group of coal mined water. Conclusions have been drawn that the amount of coal in the upper group is 6240.8 m^3, and 6 holes are arranged in the 31108 working face for the drainage of water in the goal. As of July 18, 2017, the water in the goal is about 7469 m^3, which proves good effect of draining coal water in the upper group. At the same time, six water quality tests have been conducted. According to the analysis of laboratory resuhs, the water samples obtained during the excavation of the working face are all gray water, and the water sample in the water discharge hole is goal water.