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黄河下游河道形态多样,河道整治工程繁多、情况复杂,近几年在中常洪水作用下,黄河下游多处河道工程出现险情,甚至有的发生了较大或重大险情。据预测,近期黄河下游仍以中常洪水为主,在一定时期内中常洪水将会经常发生,河道堤防工程发生险情的几率仍然较大,研究中常洪水情况下河道整治工程出险的对策非常必要。
In the lower reaches of the Yellow River, there are many forms of rivers, with numerous river improvement projects and complicated conditions. In recent years, due to the floods caused by the frequent floods, many river courses in the lower reaches of the Yellow River have become dangerous and some even have had major or major dangerous situations. It is predicted that the floods in the lower reaches of the Yellow River will continue to be dominated by the floods in the near future. In a certain period of time, the floods will occur frequently and the risks of river embankment projects are still high. Therefore, it is necessary to study the countermeasures of the flood control projects under flood conditions.