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基建期突水是矿山经常发生的突水事故,一般瞬间突水量大,易淹井,危害程度大,严重影响矿山基建施工。本文在分析矿区地下含水系统、流动系统的基础上,结合2#副井-450m水平石门巷突水淹井后的强排水资料,从地下水流场演变及其动态变化过程分析了本次突水事故的突水水源及突水通道,认为此次突水主要揭露了仍处于饱水阶段的贮水构造,其补给源不足,空间分布不均一,瞬间突水量大。结合突水水源与通道的分析,认为预防这种饱水、空间分布不均且补给不足的贮水构造突水,应重点加强探水工作,减小瞬间突水的可能,以确保矿山井下安全生产。
During the construction period, water inrush is a common water inrush accident. In general, water inrush is large and easily flooded. The degree of damage is so great that it seriously affects the construction of mine infrastructure. Based on the analysis of underground aquifer system and flow system in the mine and combined with the strong drainage data after water inrush in Well Shimen Lane of No.450 m 2 # auxiliary well, this paper analyzes the evolution of groundwater flow and its dynamic change process. The water inrush and the water inrush channel of the accident believed that this water inrush mainly revealed the water storage structure still in the stage of full water supply, insufficient supply source, uneven spatial distribution and large water inrush moment. Combining with the analysis of water inrush and channel, it is considered that the prevention of such water inrush, spatial distribution and inadequate supply of water storage structure inrush, should focus on strengthening the water exploration work to reduce the possibility of instantaneous water inrush to ensure mine safety produce.