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深层地下水的属性、深浅层地下水的水力联系(越流)是水文地质工作者一直研究和争论的问题。在对邯郸、邢台东部四县深、浅层地下水的氢、氧同位素样品的采集与测试中,发现该区地下水中氚同位素含量较高(15~30 TU,最高达51.1 TU)。本文利用区域大气降水中氚同位素衰减规律与特征,结合研究区地下水的水位和水质动态特征、含水层及隔水层的岩性特征,对特定水文地质条件下浅层地下水向深层地下水越流的可能性进行了分析研究,认为:本区存在浅层地下水越流至深层地下水的可能,在深层地下水中出现的高氚含量是其重要的证据。
The nature of deep groundwater, the hydraulic connection between deep and shallow groundwater (over-current) is a matter that hydrogeologists have been studying and arguing. In the collection and testing of hydrogen and oxygen isotope samples of deep and shallow groundwater in the four counties of Handan and Xingtai, we found that the tritium isotope content (15 ~ 30 TU, up to 51.1 TU) is high in the groundwater of this area. Based on the law and feature of tritium isotope decay in regional atmospheric precipitation, combined with the characteristics of groundwater level and water quality, the lithological characteristics of aquifers and aquitards in the study area, the paper analyzes the characteristics of groundwater in shallow aquifers under specific hydrogeological conditions It is considered that there is a possibility that shallow groundwater may flow to deep groundwater in this area, and high tritium content in deep groundwater is an important evidence.