摘要
由于滩地阻水,以致淮河入江水道的行洪能力达不到设计标准。为寻求有效的治理措施,建立了该河道一、二维耦合水动力数值模型,并采用实测地形断面资料以及2007年和2003年两次洪水的水文资料对模型进行了率定验证,成功模拟了二次洪水的行洪过程。在此基础上,预测了切滩工程实施后的水动力过程。结果表明,对观音滩、大墩岭、新民滩、邵伯湖滩群实施切滩工程,可有效降低淮河入江水道的行洪水位,增大入江水道行洪能力。
The flood propagation capacity of Huaihe River to Yangtze River Watercourse can not meet the design standard,due to the water- resistance effect of floodplain. A hydrodynamic model of 1D and 2D coupling for Huaihe to Yangtze River Watercourse is established,which is verified by the actual data of terrain section and the hydrological data of two floods in 2007 and2003. The flood propagation process of Huaihe River to Yangtze River Watercourse under the design conditions are successfully simulated,and the hydrodynamic process after the cut off of the floodplain can be predicted. The results show that by cutting off Guanyin Beach,Dadun Ridge,Xinmin Beach and beaches at Shaobo Lake,the water level of flood propagation can be reduced effectively,which can improve the flood propagation capacity.
出处
《人民长江》
北大核心
2015年第3期14-17,共4页
Yangtze River
基金
国家自然科学基金项目(51179058
51479058
51309085)
国家自然科学重点基金项目(51239003)
水利部公益性行业科研专项经费项目(201201017)
关键词
数值模拟
一二维耦合
切滩工程措施
淮河入江水道
numerical simulation
1D and 2D coupling model
beach cut off
Huaihe River to Yangtze River Watercourse
