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Dam Break Risk Assessment

Jason -

A dam is simulated under a breach conditions. The simulation begins with the assumption that a breach is initiated and thus progresses during the simultion until all the water in the breach depth reaches the final breach elevation. This model uses the same functionality as the deterministic dam break model patterned after HEC-RAS dambreak subroutine. The inflow and controlled flood releases to/from the reservoir during the breach is assumed to be negligible. When the dam breaks, a flood hydrograph is produced and routed downstream. If the peak flow in the downstream channel exceeds 500,000 cfs, it is considered a failure as significant property along the banks of the channel will be damaged. The parameters of the stochastic inputs are assumed for purposes of demonstration of this model.

Experience Level:

Advanced

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Tags:

  • reservoir
  • failure
  • risk
  • dam
  • hydrograph
  • breach
  • break
  • probability
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