Application of HEC-RAS Model in Flood Calculation of Middle Route of South-to-North Water Diversion Project
In order to improve the scientific nature of flood control in the middle route of South-to-North Water Diversion Project,improve the decision-making level of flood control and emergency rescue,effectively calculate the flow of cross rivers,minimize the casualties and engineering losses caused by floods in the cross rivers of South-to-North Water Diversion Project,and ensure the normal operation of the project,it is necessary to carry out the hydrological calculation of the cross rivers of the middle route of South-to-North Water Diversion Project.Taking the calculation of the inverted siphon channel of the Jingchang River in the cross channel of the middle route of the South-to-North Water Diversion Project as an example,the HEC-RAS hydrodynamic model is used to review the hydrology of the inverted siphon channel of the Jingchang River.According to the 24-hour flood situation,the flood flow and water level of the cross channel section are calculated,and the problem of exceeding the standard flood is reviewed and checked.It provides information support for the flood control and flood control of the South-to-North Water Diversion Project,with a view to scientific prevention of other similar projects,avoiding water damage and reducing losses.
South-to-North Water Diversioncross riverhydrodynamic modelflood calculation