ASSESSMENT OF THE STATE OF CONCRETE LINING OF UNDERGROUND ENGINE ROOM IN ROGUNSKAYA HPP BY MEASURED CONVERGENCE VALUES
N. M. Abdulloev1, L. N. Gakhova2, E. Yu. Zateeva3, A. P. Khmelinin2
1Rogunskaya HPP, Rogun, Tajikistan
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3Siberian Federal University, Sayanogorsk, Khakassiya
Keywords: Underground structure of hydraulic-engineering system, numerical modeling, stress-strain state, convergence
Abstract
For the conditions of the Rogunskaya HPP, according to the measurement results of convergence of side surfaces of the engine room, an assessment of the character of their values was given. The extrapolation results of full-scale observation data by the functions reflecting the damping and continuous character of change in the convergence of engine room lining are presented. It was found that, under unchanged external conditions, the convergence of side surfaces in the sections of the engine room was continuous by the end of 2018, which indicates a rheological process taking place in the adjacent rock mass and in the lining.
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