VERIFICATION OF NUMERICAL MODELING RESULTS OF THE STRESS-STRAIN STATE OF AN EARTH DAM ON A PERMEABLE INCLINED FOUNDATION

Numerical methods for studying the stress-strain state of earth dams help determine their actual condition and safety level throughout their lifecycle.The results of these numerical models must be analyzed and verified against existing analytical methods for determining stress-strain state parameters.In this study, the numerical model of an earth dam is verified in accordance with the properties of the Mohr-Coulomb model.The objective of this study is to compare the results of numerical modeling with analytical calculations of the stress-strain state of a zoned earth dam located on a permeable homogeneous inclined foundation.The study utilizes numerical calculation methods available in the GTS NX 2022 R1 software package.The study compares the results obtained by numerically modeling a hydraulic structure using pore pressure, total displacements, and equivalent strain parameters with analytical calculations of these parameters specified in regulatory documents.It was established that discrepancies exist between the studied parameters obtained by numerical methods and analytical calculations.However, their values, taking into account statistical error, can be considered satisfactory.It was established that, despite the fact that the maximum discrepancy between the numerical calculations for pore pressure, displacements, and deformations does not exceed 8.51 %, this system can be used in geotechnical calculations.