黄陵一号煤矿814工作面充水性因素与涌水量预测

Water filling factors and water inrush prediction of 814 working face in Huangling No.1 Coal Mine

为实现煤矿综采工作面安全高效开采,通过对黄陵矿业一号煤矿814工作面充水水源、充水通道、充水强度展开分析,得出814工作面充水因素,并通过“动、静态水结合法”对814工作面涌水量进行预测。结果表明,直罗组下段裂隙水为工作面直接充水水源,对工作面回采充水影响较大,回采前有必要对工作面上覆延安组中部砂岩含水层和直罗组下段砂岩裂隙含水层进行疏放,消除上覆直接充水水源对814工作面的水害隐患;工作面回采期间,正常涌水量为60.4 m^(3)/h,最大涌水量为84.7 m^(3)/h。

In order to realize the safe and efficient mining of fully mechanized mining face in coal mine,the water filling factors of the 814 working face are obtained by analyzing the water filling source,water flushing channel and water filling intensity of 814 working face in Huangling No.1 Coal Mine,and the water inrush of 814 working face is predicted by“dynamic and static water combination method”.The results show that:The fissure water in the lower section of Zhiluo Formation is the direct water filling source of the working face,which has a great influence on the water filling of the working face.Before mining,it is necessary to drain the sandstone aquifer in the middle of the Yan’an Formation and the sandstone fissure aquifer in the lower section of the Zhiluo Formation on the working face to eliminate the hidden danger of water damage to the 814 working face caused by the overlying direct water filling source.During the mining of the working face,the normal water inrush is 60.4 m^(3)/h,and the maximum water inrush is 84.7 m^(3)/h.