渗流参数的确定是水电工程设计中的关键步骤,将反演分析法与野外测试法相结合是获取渗流场整体特性及确定渗流参数的必要措施.针对水电工程实例,结合实际观测资料,建立了较为符合实际的水文地质模型,反演了各分区材料的渗透系数.将反演所得参数用于三维渗流有限元分析,取得了良好的计算结果,对渗流数值计算在水电工程中的应用有重要的借鉴意义. The determination of seepage parameters is the key step in the design of hydropower engineering.The combination of back analysis and field test is a necessary measure to obtain the overall characteristics of seepage field and determine the seepage parameters.According to the practical examples of hydropower projects and the actual observation data, Which is in accordance with the actual hydrogeological model and inverts the permeability coefficient of each partition material.The inversion parameters are used in the three-dimensional finite element analysis of seepage, and the good results are obtained.It is important for the application of numerical calculation of seepage in hydropower project Reference meaning.