基于MIKE FLOOD的洪泽湖周边滞洪区洪水演进模拟

发布时间：2018-07-03 07:04

本文选题：蓄滞洪区 + 洪水演算　；参考：《南水北调与水利科技》2017年05期

【摘要】：基于实测断面资料建立了研究区的一维水动力模型,基于高精度DEM以及1∶10000地形图建立了研究区的二维水动力模型,并用MIKE FLOOD将一维模型和二维模型进行耦合,构建了洪泽湖周边滞洪区一、二维耦合的洪水演进数学模型。利用2003年历史洪水资料对模型参数进行了率定,并以2007年历史洪水资料进行了验证。以洪泽湖百年一遇设计洪水为模型上边界,二河闸、三河闸以及高良涧闸的现行调度方案的水位-流量关系为模型下边界,对洪泽湖百年一遇设计洪水方案进行模拟计算,当蒋坝水位达到14.33m时,洪泽湖周边滞洪区开始滞洪,得到开始滞洪后不同时段研究区内各类洪水风险要素的动态分布情况以及最大淹没水深、淹没历时,验证了模型的合理性,可用于蓄滞洪区洪水演算分析。
[Abstract]:The one-dimensional hydrodynamic model of the study area is established based on the measured section data, the two-dimensional hydrodynamic model of the study area is established based on the high-precision Dem and 1: 10000 topographic map, and the one-dimensional model and the two-dimensional model are coupled by Mike FLOOD. A two-dimensional coupled flood routing mathematical model is constructed in flood detention area around Hongze Lake. The model parameters are determined by using the historical flood data in 2003 and verified by the historical flood data in 2007. Taking the design flood once in a hundred years as the upper boundary of the model, the water-discharge relation of the current dispatching schemes of the Erhe sluice, the Sanhe sluice and the Gaoliangjian sluice as the boundary under the model, this paper simulates and calculates the design flood scheme of Hongze Lake once in a hundred years. When the water level of Jiangba reaches 14.33m, the flood detention area around Hongze Lake begins to stagnate. The dynamic distribution of various flood risk factors and the maximum depth and duration of flooding are obtained in different periods of time after the flood arrest, which verifies the rationality of the model. It can be used for flood calculation and analysis in flood storage and detention area.
【作者单位】：河海大学水文水资源学院;浙江华东工程数字技术有限公司;
【基金】：江苏省普通高校研究生科研创新计划(KYZZ_0145;2015B31914)~~
【分类号】：TV122;TV873

【相似文献】