Analysis of Vertical Displacements of the Concrete Dam at the Boguchany HPP During Initial Reservoir Filling

The behavior of a dam during initial filling of its impounded reservoir, which can be characterized not only by the ascent of the water level, but also by warming of the bed of the dam and change in its physico-mechanical properties during filling of the reservoir as a result of its contact with the water, is analyzed. It is demonstrated in this period that it not so much the hydrostatic pressure of the water as the change in the temperature regime in the near-surface zone of the bed that has a major determining effect on deformation of the near-contact zone of the bed.