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依据九龙矿15423N工作面所进行的大量而细致的水文地质工作,研究剖析了该矿和15423N工作面的水文地质条件,分析认为该面底板下发育的隐伏微型强导水陷落柱、使奥灰含水层作用在该面煤层底板隔水层的距离缩短了68.5 m,该面煤层底板承受奥灰含水层和大青含水层水压高,剩余隔水层底板强度不足于抵挡奥灰含水层的高水压、陷落柱的隐伏性和其横向扩展范围以及横向水力联系的局限性和受当时探测技术水平的限制,是导致该面采空区滞后底板突水的主要原因,对处于封闭滞流条件下奥灰含水层水文地质条件认识的不足和偏差,是导致突水的另一个重要原因。
Based on a large amount of meticulous hydrogeological work carried out at 15423N working face of Jiulong Coal Mine, the hydrogeological conditions of this mine and 15423N working face were analyzed and analyzed. The concealed micro-sized strong water-conducting sinking column developed under this faceplate was analyzed, Aquifers shortened 68.5 m from the aquifuge floor of the coal seam, the floor of the coal seam subjected to the high water pressure of the Ordovician aquifers and the aqua regia aquifer, and the strength of the remaining aquifuge floor was not strong enough to withstand the Ordovician aquifer High water pressure, the collapse of the collapse of the column and the scope of its horizontal expansion and the limitations of horizontal hydraulic connection and by the time the detection of technical limitations, is leading to the gob of this area lagging behind the main reason of water inrush, in a closed stagnant Under the conditions of Ordovician aquifer hydrogeological conditions of the inadequate understanding and deviation, is another major reason leading to water inrush.