Research on Seepage Analysis Method and Seepage Control Measures for Plain Reservoir

There are typical characteristics for plain reservoirs, including long dam axis, poor geological conditions, low water-head and lack of damming material etc.. In the related three-dimensional seepage analysis process, there would be some problems, such as large modeling area, long numerical analysis time. In this paper, in order to solve these problems above mentioned, the Gaussian point encryption technology was introduced into the nodal virtual flux method. A typical plain reservoirs project in Hongxing was chosen to validate the applicability of the modified method. The detailed three-dimensional model of finite element analysis model for the large area in this project (about 30 km(2)) is established. Based on this, the seepage control design was optimized through the multi-program comparative analysis. The analysis results showed that the modified method proposed in this paper can well solve the seepage problem of plain reservoir and support the seepage analysis and optimization of seepage control measures for similar engineering.