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针对怀柔应急水源地供水期间一次突然浊度升高事件,结合水源井的分布、水井结构和区域地质构造,从地质因素和水井因素两方面分析了引起浊度升高的原因。综合浊度升高水源井与构造位置关系,以及浊度随时间的变化等关系分析,最终确定本次浊度升高事件为深部活动断裂引起的一次突发事件。深井浊度超标主要因基底断裂活动引起;而浅井浊度超标是受深部断裂活动扰动和水源井滤水管段抽水动水位大幅扰动双重因素作用的结果。
Aiming at a sudden turbidity increase event during the water supply period in Huairou emergency water source area, the causes of turbidity increase were analyzed from the aspects of geological factors and water well factors based on the distribution of water source wells, well structure and regional geological structure. Based on the analysis of the relationship between turbidity and the location of the water source well and the change of turbidity with time, the event of turbidity increase is finally confirmed as an unexpected event caused by deep active fracture. The over-standard of deep well turbidity is mainly caused by the basement fault activity. Excessive turbidity of shallow well is caused by the dual factors of disturbance of deep fault activity and drastic water level fluctuation of pumping well in water source well.