原平国荣煤矿地下水灾害探讨分析

The Discussion and Analyze of Underground Water Damage of Previous Pingguorong Coal Mine

为了确定整合后的原平国荣煤矿水害对其威胁性,文中根据对矿区水文地质条件分析和研究可知,开采的2、5号煤层直接充水含水层为其顶板以上砂岩裂隙含水层,井田内存在不同程度的导水性和富水性。该井田对煤层开采危害严重的是奥陶系灰岩,虽然其为煤矿充水的间接水源,但由于断层的存在,缩短了含水层与煤层之间的距离,由于奥陶系灰岩水具有静储量大、水压高等特点,一旦发生突水,涌水量大,难于疏干,潜在危害严重。

In order to confirm the water damage to the previous integrated Pingguorong coal mine, according to the research and analyses of coal mine hydrogeological condition,the aquifer of the 2nd and 5th coal seam is the sandstone fracture aquifer beyond roof,and the coal mine have different range of transmissibility and watery,and the ordovician limestone is seriously damage to mining although it is the indirect water resource of the coal mine water, however with the existence of fault the distance between aquifer and coal seam is shorten, because of the feature of the great static reserves and the high pressure of ordovician limestone water, once the water burst is occurred, the big amount of water gushing and difficulty of dredge is seriously damage to coal mine.