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在介绍青云山隧道地质与水文地质条件的基础上,以F3断层带为重点研究对象,从分析常规元素和(87Sr/86Sr、D1、8O、T)同位素水化学特征入手,探讨地下水与河水的关系,运用氚同位素测试结果,计算地下水生成的相对年龄,分析该断层带的涌水条件;采用降雨入渗法、解析法、氚同位素法预测断层带的涌水量,将计算结果进行对比,认为:氚同位素法从理论上比其它两种方法适合火山岩地区断层带的涌水量计算。
Based on the introduction of the geological and hydrogeological conditions of the Qingyun Mountain Tunnel, this paper focuses on the study of the F3 fault zone. Starting from the analysis of conventional elements and (87Sr / 86Sr, D1, 80O, T) isotopic hydrochemical characteristics, this paper discusses the relationship between groundwater and river water The tritium isotope test results are used to calculate the relative age of groundwater generation and the gushing water conditions of the fault zone are analyzed. The rainfall infiltration method, analytic method and tritium isotope method are used to predict the water inflow in the fault zone. Comparing the calculated results, The tritium isotope method is theoretically more suitable for the calculation of water inflow in the fault zone of volcanic area than the other two methods.