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通过对第四系“四含”长观孔、“太灰”长观孔、“奥灰”长观孔的水位观测及突水水质的化验,认为皖北矿务局祁东煤矿-420水平3222工作面发生的(涌水量达1670m3/h)特大突水灾害的突水水源应来自第四系第四含水层,其突水通道可能是:①工作面上方隐伏存在古河床切割的深沟,②工作面中存在垂向导水裂隙带,使“四含”水下泻所致。通过采用强排、截流、拔架及堵源的治理方案,恢复了矿井生产。
Based on the observation of the water level and the water inrush quality of the Quaternary “Four-included” long-sight hole, “too-gray” long-view hole and the “Obsidian gray” 3222 The occurrence of water inrush (up to 1670m3 / h) inrush water should come from Quaternary Aquifer IV. The water inrush channel may be: (1) there is a hidden deep trench , ② there is a vertical surface water fissure zone, so that “four containing” due to diarrhea. Through the use of strong row, interception, pulling and plugging the source of the management program, resumed mine production.