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本文论述同位素示踪法测定多含水层混合井的试验研究及应用。提出了通过测定天然流场与人工流场下的垂同流来确定渗透系数、各含水层静水位、导水系数及含水层划分方法。此法还可测定地下水的渗透流速及在含水层中的分布状态、分层的地下水流向,推算含水层最大天然补给量。列举了某地钻孔测量实例,并与抽水试验结果比较证实该方法的可行性与优点。
This paper discusses the experimental study and application of isotope tracer for the determination of multi-aquifer mixed wells. It is proposed to determine the permeability coefficient, the static water level of each aquifer, the conductivity coefficient and the method of aquifer classification by measuring the vertical co-flow under the natural flow field and artificial flow field. This method can also determine the groundwater infiltration velocity and distribution in the aquifer, stratified groundwater flow, the maximum aquifer natural recharge calculation. Some examples of drilling measurement are listed, and the feasibility and advantages of this method are confirmed by comparison with the pumping test results.