应用同位素氚预测地下水补给量

APPLICATION OF ISOTOPIC TRITUM (￣3H) METHOD TO PREDICT UNDERGROUND WATER SUPPLY AMOUNT

铁路工程水文地质勘测，应用同位素氖法，了解地下水生成的相对年代，从而判断地下水的补给特征，预测隧道经常涌水量和供水水源的补给量，通过工程实践已具有可行性。同位素方法，属国内外新技术，尽管理论较为深奥，但方法简单，成果可靠程度高。本文就实际工程的野外操作、室内分析、计算方法作一简介，以供参考。

in hydrogeology survey of railway engineering,the method using isotopic tritum(3H) to understand the formed ages and supply characteristics of underground water,and topredict the permanent discharge of tunnel and supply amount of water resource,was testifiedavailable in local engineering. The isotopic tritium(3H)method is a new technics. In spite ofits complex theory,the method is thought to be simple and the result has a higher believabledegree. Operation in site,analysis and its calculation method for local engineering are introduced in this paper.