Assessment of the technical condition of the Eshkakonsky hydroelectric complex during monitoring of safe operation

An analysis of the design features, indicators of strength, stability and condition of the hydraulic structures of the Eshkakon hydroelectric complex according to the project data, verifi cation calculations and fi eld observations indicates that the most vulnerable structure to the impact of natural and man-made hazards that can cause a hydrodynamic accident is a rock-and-earth dam. As a factor of natural impact on the hydraulic structures of the Eshkakon hydroelectric complex, an accident at the dam from a seismic impact with a force exceeding the calculated value can be considered. Regular fi eld observations and research, maintenance and repair activities carried out regularly ensure the constant maintenance of hydraulic structures in working condition. For the localization and liquidation of possible dangerous large-scale damage and emergencies at the facilities, the material and technical means of the owner of the facility are suffi cient. Improvement of the technology of liquidation of accidents and strengthening of technical means of emergency protection is achieved by carrying out a set of special measures, including organizational, preventive, repair and structural and technical solutions for preventing accidents.

1. Volosukhin Ya.V. Safety of the complex of hydraulic structures in the basin of the small mountainous river Eshkakon / Ya. North Caucasian region. Technical science. 2017. No. 2 (194). pp. 85-90. – DOI 10.17213/0321-2653-2017-2-85-90.

2. Volkov V.I., Snezhko V.L., and Kozlov D.V. Forecast of the safety level of low-pressure and ownerless hydraulic structures, Gidrotekhnicheskoe stroitel’stvo. 2018. No. 11.pp. 35-41.

3. Development of methods for assessing the reliability of hydraulic structures / O.M. Finagenov, V.B. Shtilman, S.G. Shulman, A.M. Yudelevich // Proceedings of the All-Russian Scientifi c Research Institute of Hydrotechnics. B.E. Vedeneeva. 2021. Vol. 300. pp. 7-20.

4. Volosukhin V.A., Bandurin M.A., VolosukhinYa. V. Safety monitoring of hydraulic structures of low-pressure reservoirs and water-irrigation systems [and others]; Under the general editorship of V.A. Volosukhin. Novocherkassk: OOO “Lik”, 2010. 338 p.

5. Panov S.I. The role of VNIIG them. B.E. Vedeneeva in the development of assessing the state of soil hydrotechnical systems based on fi eld studies and calculation methods / E.A. Filippova, O.A. Buryakov [et al.] // Proceedings of the All-Russian Research Institute of Hydrotechnics named after. B.E. Vedeneeva. 2021. Vol. 300. pp. 74-84.

6. Volosukhin Ya.V. Ecological aspects of sanitary protection zones of the main source of water supply in the resort city of Kislovodsk / Ya.V. Volosukhin, TV Ivankova Yu.Ya. 2020. No. 3. pp. 91-99. – DOI 10.26897/1997-6011-2020-3-91-99.

7. Volosukhin V.A. Climate change: causes, risks for the water management complex of the Krasnodar Territory / V.A. Volosukhin, M.A. Bandurin, I.A. Prikhodko // Nature Engineering. 2022. No. 4. pp. 50-56. – DOI 10.26897/1997-6011-2022-4-50-56.

8. Volosukhin V.A. Problematic issues of implementation of water use monitoring in the South of Russia in the conditions of growth of technogenic loads and climatic changes / V.A. Volosukhin, M.A. Bandurin // Bulletin of the Don State Agrarian University. 2017. No. 2-1 (24). pp. 113-123.

9. Skripka G.I. Monitoring of hazardous coastal processes of the Tsimlyansk Reservoir using GIS technologies / Ivlieva O.V., Bespalova L.A. [et al.] // InterKarto. InterGIS. 2020. Vol. 26. No. 2.pp. 253-263. – DOI 10.35595/2414-9179-2020-2-26-253-263.

10. Mechanical stresses in building structures and dry friction-ways to improve the durability of architectural structures / Z. Jing, D. Benin, V. Snezhko [et al.] // Journal of Advanced Research in Dynamical and Control Systems. 2020. Vol. 12. – No S2. P. 578-585. – DOI 10.5373/ JARDCS/V12SP2/SP20201107.

11. Snezhko V.L., Sidorova S.A., and Simonovich O.S. Prediction of the safety level of soil low-pressure dams, Prirodoobstroystvo. 2019.No. 2. pp. 72-79. – DOI 10.34677/1997-6011/2019-2-72-80.

12. Seismic input models for tuned mass damper designing / Y.U. Albert, A.A. Dolgaya, T.V. Ivanova [et al.] // Magazine of Civil Engineering. 2017. No. 8 (76). pp. 98-105. – DOI 10.18720/MCE.76.9.

13. Denisov G.V. Condition of the Gotsatli Hydroelectric Power Plant Dam During Filling of the Reservoir According to Field Observations and Numerical Modeling / G.V. Denisov, O.Y. Davydkin, K.M. Vorob’ev // Power Technology and Engineering. 2017. Vol. 51.No 3. P. 267-273. – DOI 10.1007/s10749-017-0823-y.

14. Guriev A.P., Khanov N.V., Fartukov V.A. [et al.] Recommendations for the prevention of cavitation erosion of concrete on the example of the spillway No. 2 of the Boguchanskaya HPP. 2019. No. 4.pp. 69-77. – DOI 10.34677 /1997-6011/2019-4-69-77.

15. Karpenko N.P. Theoretical substantiation of the structure of the classifi er of safety criteria for HTS of the reclamation water management complex / N.P. Karpenko, I.F. Yurchenko // Nature Engineering. 2015. No. 1.pp. 12-15.