入海水道二期对洪泽湖地区洪水风险的影响研究

发布时间：2018-03-22 04:21

本文选题：数值模拟　切入点：入海水道　出处：《水利水运工程学报》2017年05期 　论文类型：期刊论文

【摘要】：为探究淮河入海水道二期工程对洪泽湖的泄洪能力以及周边滞洪区的影响,在对研究区河网概化及地形处理的基础上,建立了研究区河网一维、洪泽湖湖区与周边滞洪区二维耦合的水动力数值模型,并采用1991,2003,2006,2007四年实测历史洪水资料对模型进行率定及验证。基于现状工况、规划工况以及不同洪水量级,设计了5个对比方案对研究区进行洪水演进数值模拟,对不同洪水量级进行横向对比,对不同工况进行纵向对比,并对不同方案进行淹没面积分析和洪水影响分析。结果表明,入海水道二期工程的启用可以有效降低洪泽湖水位,提高洪泽湖的防洪标准和周边滞洪区的启用标准,减少同等洪水量级下的受影响人口数和区域GDP,为洪泽湖的防洪安全建设以及周边蓄滞洪区的稳定发展创造了条件。
[Abstract]:In order to investigate the effect of the second stage of the Huaihe River waterway into the sea on the flood discharge capacity of Hongze Lake and the flood detention areas around the study area, a one-dimensional river network in the study area is established on the basis of the generalization of the river network and the topographic treatment of the study area. A two dimensional coupled hydrodynamic numerical model of Hongze Lake Lake and its surrounding flood detention area is presented, and the model is determined and verified by using the historical flood data measured in 1991 / 2003 / 2006 / 2007. Based on the present conditions, planning conditions and different flood levels, the model is established and verified. Five comparison schemes were designed to simulate flood routing in the study area, horizontal comparison of different flood levels, longitudinal comparison of different working conditions, analysis of submergence area and flood impact analysis of different schemes. The commissioning of the second phase of the waterway into the sea can effectively reduce the water level of Hongze Lake and raise the flood control standard of Hongze Lake and the operating standard of the surrounding flood detention area. Reducing the number of affected population and region GDPunder the same flood order creates conditions for flood control safety construction and stable development of flood storage and detention area around Hongze Lake.
【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2014年度普通高校研究生科研创新计划项目(KYZZ_0145) 江苏省普通高校研究生科研创新计划项目(2015B31914) 江苏省水利科技项目(20165042812)
【分类号】：TV87

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