Finite-element simulation of possible natural disasters on landfall dams with changes in climate and seismic conditions taken into account

• Published in: Journal of physics. Conference series 2018-05, Vol.1015 (3), p.32011
• Main Authors: Bandurin, M A, Volosukhin, V A, Vanzha, V V, Mikheev, A V, Volosukhin, Y V
• Format: Article
• Language: English
• Subjects: Dam failure; Dams; Earthquake damage; Evaluation; Finite element method; Floodplains; Geomorphology; Mountains; Mudflows; Natural disasters; Physics; River basins; Simulation; Substations; Threat evaluation; Tributaries
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1015/3/032011

At present theoretical substations for fundamental methods of forecasting possible natural disasters and for quantitative evaluating remaining live technical state of landfall dams in the mountain regions with higher danger are lacking. In this article, the task was set to carry out finite-element simulation of possible natural disasters with changes in the climate as well as in modern seismic conditions of operation in the mountain regions of the Greater Caucasus with higher danger. The research is aimed at the development of methods and principles for monitoring safety of possible natural disasters, evaluating remaining live technical state of landfall dams having one or another damage and for determination of dam failure riskiness, as well. When developing mathematical models of mudflow descents by inflows tributaries into the main bed, an intensive danger threshold was determined, taking into consideration geomorphological characteristics of earthflow courses, physico-chemical and mechanical state of mudflow mass and the dynamics of their state change. Consequences of mudflow descents into river basins were simulated with assessment of threats and risks for projects with different infrastructures located in the river floodplain.