Flood

FLOOD

Catastrophic flooding - a hydrodynamic evil that results from the destruction of artificial or natural dam and flooding is rapid wave break located below ground and the occurrence of floods.

Catastrophic flooding is characterized by the following parameters:

             - The maximum possible height and speed of the wave breaking;

             - calculation time coming crest and wave front breakthrough in the corresponding wing;

             - outside the zone of possible flooding;

             - maximum depth of flooding specific areas of land;

             - duration of flooding.

Catastrophic flooding spreads speeds waves break and leads over time after breaking the dam to inundate large areas of water layer from 0.5 to 10 m or more. Formed flood zone.

Zone of possible flooding in the destruction of waterworks is part adjacent to the river (lakes, ponds) flooded area.

Depending on the effects of hydro-formed by the destruction of waterworks, possible flooding in the area should provide catastrophic flooding, which is the part of possible flooding within which spreads wave breaking, causing massive loss of life, destruction of houses and buildings, destroying other wealth.

Areas potentially catastrophic flooding determined in advance at the design stage hydraulic facility.

The time during which flooded area may be under water, ranging from 4 hours to several days.

Options flood zone depend on the size of the reservoir, water pressure and other characteristics of a particular hydropower, as well as hydrological and topographical features of the terrain.