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1996年汛期,淮河流域发生了大洪水。在抗御洪水中,近几年来的治淮工程充分发挥了效益,大大地减轻了灾害损失。 一、经过“八五”期间淮干扩大行洪通道与圩堤退建加高等,1996年中游洪水下泄比1991年要快得多。据分析,在同样水位情况下,1996年洪水下泄的流量比1991年洪水下泄的流量多4.19％～30.25％;在下泄量相同的情况下,1996年的水位比1991年降低0.21～0.60米。水位降低的绝对值不是很大,但由于是在堤防的保证水位附近,处于堤防抵抗洪水的临界状态,能降低上述
Flood season in 1996, Huaihe River Basin floods. In the course of fighting floods, the project of harnessing Huaihe River in recent years has brought into full play the benefits and greatly reduced the loss of disasters. First, after the “Eighth Five-Year Plan” period, the Huai River extended its flood passageway and the levee bank to a higher level. In 1996, floods in midstream were much faster than in 1991. According to the analysis, at the same water level, the flood discharge in 1996 was 4.19% to 30.25% more than that of the flood in 1991, and the water level in 1996 was 0.21-0.60 meters lower than that of 1991 under the same amount of discharge. The absolute value of water level reduction is not very large, but because it is near the guaranteed level of the embankment, it is in the critical state of the embankment resisting the flood and can reduce the above