If the rainfall continues, will the major reservoirs still flood?

Flood discharge is flood discharge. Due to the continuous heavy rainfall, the reservoir exceeded the water level. In order to avoid serious disasters caused by flooding or dam-break and weir-break, the floodgate is opened to discharge water to the downstream flood discharge area. Up to now, the maximum flood discharge of Xin 'anjiang Reservoir is 1999. At that time, the 8-hole sluice was opened, and the flood discharge reached 6700 cubic meters per second, which was more than twice the flood discharge this time. Jiande city City downstream of the reservoir was flooded.

Extended data

Urban flood control and drainage is the product of social and economic development. Developed countries have encountered this problem to varying degrees in the high-speed development stage of their respective economies, and paid a heavy price and huge governance costs for it. In the process of urbanization in China, due to the dense population, numerous and concentrated buildings, developed industry and commerce and transportation, the problem of rain and flood faced by cities is more complicated, and the losses after floods are more serious.

For severe floods, it is suggested that the upstream reservoir should be "cleared" before Wambia crosses the border, that is, the water in the reservoir should be drained in advance. However, an expert who once worked in China Academy of Water Resources and Hydropower pointed out that one of the important functions of the Northern Reservoir is water supply. "Even if the weather forecast predicts a major flood, the northern reservoir only needs to reduce the water to the flood limit level instead of clearing the reservoir. For the northern reservoir, there is no requirement for' clearing the reservoir' in the regulations. "

Baidu encyclopedia-flood discharge