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The expansion of water resources is the key factor in the socio-economic development of all countries [...]

Dams have played a vital role in human civilization for thousands of years, providing vital resources such as water and electricity, and performing important functions such as flood control [...]

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Relevance. At present the application of numerical analyses to real problems of dam engineering has suffered at times from the gaps between the specialists of mathematical modeling and dam engineers and managers. The first group usually includes information system specialists because they are able to develop the computer models to their full potential. The professionals belonging to the second group often prefer to revert to traditional methods of calculation and empirical methods based on their proven experience. The aim of the work -based on recommendations of International workshops seminars, organized by the ICOLD Committee on Computational Aspects of Dam Analysis and Design, help dam engineers to interact with mathematical modeling specialists and to work with them without language barriers or gaps in knowledge. In this relation the assessment of reliability and applicability of numerical analyses of dams allows engineers to develop the optimal dam design. Methods. Assessment of the reliability of numerical methods of analyses of dam behavior was based on data of 10 International benchmark-workshop seminars, organized by the Committee in which specialists of these countries also took part.Keywords: reliability index; numerical models and analyses; static, seismic and hydraulic behavior of the dam For citation Lyapichev Yu.P., Mazza G., Mateu E., Zenz G., Carrère A.J. (2019). Reliability and applicability of modern numerical analyses of dams. Structural Mechanics of Engineering Constructions and Buildings, 15(6), 458-469. http://dx.