淮河三河尖水位站特征水位分析研究  

Research on the Characteristic Water Level of Huaihe Sanhejian Water Level Station

作　　者：刘冠华 张晨晨 万新宇[2] LIU Guan-hua;ZHANG Chen-chen;WAN Xin-yu(Henan Bureau of Hydrology and Water Resources, Zhengzhou 450003,Henan Province, China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China)

机构地区：[1]河南省水文水资源局,郑州450003 [2]河海大学水文水资源学院,南京210098

出　　处：《中国农村水利水电》2021年第1期90-93,共4页China Rural Water and Hydropower

摘　　要：特征水位是防汛预警决策的重要依据。近年来,淮河三河尖水位站经常出现大范围、长历时的水位超警,现有的特征水位已逐渐不能适应当前防汛工作需要。采用上下游水面线分析、水力学法、水位过程线对比分析和最高水位年频次分析等方法分别得出相应的特征水位,综合考虑堤防超高、特征水位确定原则以及抗洪抢险联动性等因素,提出更为合理可行的特征水位,最后对三河尖两岸淹没情况和上游圩区进行影响分析。结果表明:特征水位调整对三河尖两岸及上游圩区堤防影响不大;三河尖水位站原警戒水位和保证水位过低,应适当提高。The characteristic water level is an important basis for flood control and early warning decision-making.In recent years,large-scale and long-lasting water level over-alarms have frequently occurred at the Sanhejian Water Level Station of the Huaihe River.The existing characteristic water level has gradually been unable to meet the needs of current flood control work.This paper uses upstream and downstream water surface line analysis,hydraulics method,water level process line comparison analysis,and highest water level annual frequency analysis to obtain the corresponding characteristic water levels,comprehensively considering factors such as the superelevation of the embankment,the principle of determining the characteristic water level,and the linkage of flood fighting and emergency rescue.A more reasonable and feasible characteristic water level is put forward.Finally,the impact analysis of the flooding situation on both banks of Sanhejian and the upstream polder area is carried out.The results show that the characteristic water level adjustment has little effect on the dikes along the banks of Sanhejian and the upstream polder;the original warning water level and guaranteed water level of the Sanhejian Water Level Station is too low and should be appropriately raised.

关 键 词：警戒水位 保证水位 水面线分析 水位过程线 年频次分析 

分 类 号：TV12[水利工程—水文学及水资源]