从研究区具体的地质、水文地质条件出发，分析了坝基不同时期的渗流及水化学特征，指出区内补强工程的防渗效果是显著的，但似还存在局部的防渗薄弱部位。同时还指出，即使在实施了补强工程之后，坝基水化学场内仍存在复杂的水—岩—坝（包括防渗体等）之间的水文地球化学作用，其时效影响是值得注意的 Based on the specific geological and hydrogeological conditions in the study area, the seepage and hydrochemical characteristics at different periods of the dam foundation are analyzed. It is pointed out that the seepage prevention effect of the reinforcement works in the area is remarkable, but there still exists some weak seepage prevention sites. At the same time, it is pointed out that even after the reinforcement project, the hydrogeochemistry between complex water-rock-dams (including anti-seepage and so on) still exists in the dam foundation hydrochemistry field, and its aging effect is worth noting