Application Research of Two-dimensional Dam-break Flood Evolution Simulation in Dangerous Reservoirs
Focusing on Huashan Reservoir,this paper calculates the peak discharge of a dam breach,constructs a two-dimensional hydrodynamic model to simulate the evolution of dam break floods and their impact downstream,and develops appropriate emergency evacuation plans.The results indicate that the breach width under the most adverse conditions of the Huashan Reservoir dam is 86.84 meters,corresponding to a dam break peak discharge of 25603.63 cubic meters per second.The dam break flood would affect 72 villages,totaling 15620 people,within a 19.75 square kilometer area in Chikeng Town,Kengkou Town,and Gushui Town of Guangning County.Therefore,it is necessary to prepare evacuation plans and strengthen the management of the safe operation of dangerous reservoir dams.
dam breach analysistwo-dimensional hydrodynamicsimulation of dam break floodsemergency evacuation
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