Application of Hydrochemistry Components Analysis to Engineering Hydrogeology: A Case Study of Hydrogeological Condition Analysis at Ziyili Hydroplant in Sichuan

摘要

Since very little hydrogeologial information can be obtained from limitied hydrogeological investigation and drilling in hydropower engineering, it's hard to elucidate the source of groundwater and the relationship among recharge, runoff and discharge in dam area with complicated hydrogeological conditions. In the engineering geology investigation, especially in the adits, water sampling is easy and more information can be obtained from hydrochemical analysis of water samples. In this paper, the authors have sampled and measured a series of water samples. More hydrogeological information about the source of fractural water, recharge altitude and the penetrability of terranes has been gained by ions ratio analysis, cluster analysis and D and ~(18)O isotopes analysis. The hydrochemical analysis is available to hydrogeological analysis in the hydropower engineering.