Assessment of the Efficiency of the Grout Curtain and Control of the Seepage at Nosice Dam Using Numerical Modeling

The study investigates the interaction between the grout curtain and bedrock foundation of the Nosice Dam, which is located in a geologically heterogeneous environment on the Váh river in Slovakia. By applying numerical modeling (the Finite Element Method) and analyzing water pressure test data, the research aims to assess the effectiveness of a grout curtain in controlling seepage. An extensive parametric study examines the impact of different rock permeability values on the reduction of seepage, which aids in the optimization of the depth of a grout curtain. This approach underscores the importance of advanced numerical modeling for dam safety and seepage control. The results could contribute to the knowledge of dam seepage control measures and could provide valuable insights about similar hydraulic structures. They could potentially mitigate risks, such as internal erosion and foundation instability associated with uncontrolled seepage.