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一、洪水特点1991年的淮河洪水来得早,来势猛,峰高量大,尤其是入江水道区间高邮湖以下,出现了超过1954年的洪水特征值.3月11日三河闸开始排泄桃汛,流量3000立方米/秒,一直排到4月20日,其中3月15、16、17日最大流量达4500立方米/秒。高邮湖水位由3月11日的灌溉蓄水位+5.77米(废黄河口基面),上涨至3月19日最高水位+6.98米。归江河道上的万福闸和金湾闸于3月12日开闸排泄桃汛流量1750立方米/秒,一直排到4月26日,其中3月
First, the flood features The Huaihe flood in 1991 came earlier, the trend of Meng Meng, a large amount of high peak, especially in the section of the waterway below the Gaoyou Lake, there has been more than 1954 flood characteristics.March 11 River sanxia gates began to excrete peach, The flow of 3000 cubic meters / second, has been discharged to April 20, of which March 15, 16, 17, the maximum flow rate of 4500 cubic meters / second. The water level of Gaoyou Lake rose from 5.77 meters (basal level of waste Yellow River Estuary) on March 11 to +6.98 meters on March 19. The Wanfu Gate and Jinwan Gate to the rivers and lakes on March 12 opening gate discharge peach flood traffic 1750 cubic meters / second, has been routed to April 26, of which March