Dmytriiev S. Stability in Outer Slope of Earth Dam Considering Seasonal Variations in Ambient Temperature

Object of research - - downstream slope; goal - evaluation of impact of season climate environment changes in temperature on rigidity of the downstream slope; methods - analytical, numerical, experimental, as well as mathematical statistics method; results - solution of equation of convectional thermal conduction was obtained for the task of temperature waves expansion in the slope body caused by season environment changes in temperature; bond of temperature wave, which travel in the slope body with saturated surface position was proved theoretically and experimentally; evaluation of impact of season environment changes in temperature on minimal value of downstream slope stability factor was performed, significant impact was established; methods for defining saturated surface position and assessments of downstream slope stability were offered and tested with consideration of impact of season environment changes in temperature; novelty - assumption on connection between season changes in water temperature filtering in the slope body and hydraulic heads was confirmed theoretically and experimentally; analysis method of temperature conditions of the slope body was first developed on the basis of obtained solution of equation of convectional thermal conduction with consideration of season environment changes in temperature; new analysis methods for saturated surface position in the body of ground impounded water development facility with consideration of temperature constituent of filtering water were offered; design procedure for downstream slope stability factor for considering season climate environment changes in temperature was improved; implemented - into construction standards of state level; at exploration works; into educational process; implementation - into construction standards of state level; at exploration works; into educational process.