关键词: 断层突水, 寒武系石灰岩含水层, 距离判别法, 瞬变电磁探测

Abstract: According to the fault water inrush of Zhangcun mine, the distribution of faults in the mine is analyzed. Based on the distance discriminant analysis method, the water inrush grades of the main effect faults in Zhangcun mine are discriminated. The results show that the taiyuan formation limestone aquifer causes fault water inrush more easily than the Cambrian limestone aquifer does because the thickness of aquifuge between the coal seam and the taiyuan formation limestone aquifer is less than the mining failure thickness of floor. In addition, the larger the fault displacement is, the bigger the water inrush quantity will be in high water pressure. Because the large displacement fault will cut to the Cambrian limestone aquifer, and its water abundance is more stronger than others. The analysis results also consistent to the real condition and the transient electromagnetic exploration results in Zhangcun mine. According to the research results, the prevention measures of fault water inrush are proposed, which have some guiding significance to ensure the safe production of the mine.

Key words: Fault water inrush, the Cambrian limestone aquifer, the distance discriminant analysis method, the transient electromagnetic exploration