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Article

Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System

1
Faculty of Engineering, University of Kragujevac, 34000 Kragujevac, Serbia
2
Jaroslav Černi Water Institute, 11226 Beograd, Serbia
3
Faculty of Civil Engineering, University of Belgrade, 11000 Belgrade, Serbia
*
Author to whom correspondence should be addressed.
Academic Editor: Daniel Dias
Appl. Sci. 2022, 12(2), 558; https://doi.org/10.3390/app12020558
Received: 3 December 2021 / Revised: 21 December 2021 / Accepted: 30 December 2021 / Published: 6 January 2022
The paper presents a functionality investigation of the key dam elements based on finite element analysis. A detailed analysis of filtration processes, dam strength, and the surrounding rock mass was conducted. Dam elements whose potential damage could jeopardize the normal functioning of the embankment dam have been identified. A particular emphasis was placed on the analysis of dam elements that have been identified as weak points. A numerical analysis of the impact of individual grout curtain zone failure on leakage under the dam body, a strength analysis of the overflow section, as well as the analysis of the slope stability that can compromise the functioning of the spillway have been performed. To analyze the partial stability of individual structural elements, a new measure of local stability was introduced as the remaining load-bearing capacity. As a case study, the Zavoj dam, which is a part of the Pirot reservoir system in the Republic of Serbia, was used. Investigation revealed that local damage to the grout curtain will not significantly increase leakage under the dam body, the overflow section is one of the most robust elements of the dam, but the slope above the spillway can compromise the functioning of the overflow and thus the safety of the entire dam. Based on the analysis of the results of the remaining load-bearing capacity, the dependence of the spillway capacity on earthquake intensity has been defined. The established relationship represents a surrogate model for further assessment of dynamic resilience of the complex multipurpose reservoir system, within the scope of the advanced reservoir system management. View Full-Text
Keywords: failure assessment; dam safety; multipurpose reservoir; FEM; remaining load-bearing capacity failure assessment; dam safety; multipurpose reservoir; FEM; remaining load-bearing capacity
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MDPI and ACS Style

Rakić, D.; Stojković, M.; Ivetić, D.; Živković, M.; Milivojević, N. Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System. Appl. Sci. 2022, 12, 558. https://doi.org/10.3390/app12020558

AMA Style

Rakić D, Stojković M, Ivetić D, Živković M, Milivojević N. Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System. Applied Sciences. 2022; 12(2):558. https://doi.org/10.3390/app12020558

Chicago/Turabian Style

Rakić, Dragan, Milan Stojković, Damjan Ivetić, Miroslav Živković, and Nikola Milivojević. 2022. "Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System" Applied Sciences 12, no. 2: 558. https://doi.org/10.3390/app12020558

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