Investigation of Dynamic Behavior Variations of the Enguri Arch Dam

Abstract

The primary objective of this study is to investigate the dynamic variations in the displacement of the Enguri Arch Dam foundation in relation to periodic fluctuations in the reservoir’s water level. The analysis is based on a comprehensive dataset spanning the period from 1974 to 2021. In this work, we applied several modern nonlinear analytical techniques to examine these dynamical changes, with a focus on the highly effective Multifractal Detrended Fluctuation Analysis (MF-DFA) method. Our findings indicate a clear connection between the displacement dynamics of the dam foundation and the overall behavior of the structure. Notably, one of the key factors influencing these dynamics is the variation in the water level of the reservoir behind the Enguri high dam.