Ensuring the reliability of hydraulic structures, in particular highland dams, is of particular importance for sustainable water supply in the agro-industrial complex, especially under conditions of water scarcity and seismic activity. The purpose of this work was to evaluate the stress-strain state of highland dams taking into account the complex action of volumetric, seismic and hydrostatic loads to improve the reliability of water infrastructure serving agriculture. The Kolosov-Muskhelishvili method was used in the study to model stresses in elastic media taking into account the interaction of rocks, tectonic stresses and external loads. The peculiarities of stress redistribution in the dam massif under changes in the reservoir level and water saturation were analysed, and the influence of seismic effects on the formation of shear zones in isotropic rocks was revealed. It was found that in mountainous relief conditions horizontal stresses may exceed vertical stresses, which requires revision of design approaches. The combined effects of gravitational, seismic and hydrostatic forces on the stability of structures have been analysed. Special attention was paid to the influence of tectonic processes and relief on the stress state of the soil mass. The results of the study can be used in the design and operation of highland dams that provide water supply to reclamation systems and agricultural areas in earthquake-prone regions. Modern methods of mathematical modelling significantly increase the accuracy of engineering calculations and ensure the reliability of hydraulic structures, which is especially important for ensuring agrarian safety. The assessment of stress-strain state of structures serves as a basis for predicting their behaviour under various loads and taking effective measures to maintain stability. The practical value of the performed work lies in the use of the results by design and engineering survey organisations in the design and construction of highland dams, allowing designers to accurately predict the behaviour of hydraulic structures under various operating conditions, ensuring reliable and sustainable water supply in agriculture, especially in areas with increased seismic activity and complex engineering and geological conditions
Ismailova et al. (Tue,) studied this question.