FORMING THE STRESS-STRAIN STATE OF ROCK MASS AND LINING WHEN CONSTRUCTING UNDERGROUND TURBINE HALL OF HYDROPOWER PLANT
N. M. Abdulloev1, D. V. Baryshnikov2, L. N. Gakhova2,3, A. P. Khmelinin2
1Rogun Hydropower Plant, Rogun, Republic of Tadzhikistan
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3Sayano-Shushensk Branch of Siberian Federal University, Sayanogorsk, Russia
Keywords: Подземное сооружение гидротехнического комплекса, численное моделирование, напряженно-деформированное состояние, конвергенция, Underground structure of hydropower plant, numerical modeling, stress-strain state, convergence
Abstract
Numerical modeling was performed for stress-strain state of the rock mass and lining of underground turbine hall of Rogun hydropower plant. The hall is located in a rock mass at great depths. Numerical modeling was conducted using the method of boundary integral equations based on the model of linearly elastic quasi-isotropic medium. The character and features of forming inelastic deformation zones near the contour of turbine hall cross-section are found. The regularities of distribution of rock mass and lining stress-strain state are determined as well.
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