Evolution of Thermohydrodynamic Fields at Tailings Dam at Kumtor Mine (Kyrgyz Republic)
L. A. Nazarova1,2, L. A. Nazarov1,2, M. D. Dzhamanbaev3, M. K. Chynybaev3
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090 Russia
3Razzakov Kyrgyz State Technical University, pr. Mira 66, Bishkek, 720044 Kyrgyzstan
Keywords: soil, thermohydrodynamic model, permafrost, Kumtor mine, tailings pond, tailings dam, impervious screen
Abstract
The authors have developed the FEM geomechanical model to describe evolution of temperature and hydrodynamic fields at the tailings dam of the Kumtor Gold Mine, Kyrgyzstan, in the permafrost region. The influence exerted by the temperature variation in the liquid waste accumulated in tailings pond and by the changes of size of impervious screen on the volume of filtrate material through the dam is evaluated in numerical experiments. It is shown that the pressure variation rate in the monitoring hole can be the indicator of the impervious screen rupture.
|
