Natural seepage parameter inversion of a hydropower station

A 3D natural seepage model of a hydropower station was established based on the engineering hydrogeology, the sequential quadratic programming was used to invert the natural seepage field and permeability parameters of the hydropower station. The inversion permeability parameters and reasonable intercepting boundaries were obtained, and the boreholes, whose head difference between the inversion and in situ is below 20m, amount to the 80% of the total. This indicates that the natural seepage model can reflect the main engineering geological and groundwater distribution features of the hydropower station, the obtained permeability parameters and boundaries are reasonable.